PickSmartly Review

Best Connecticut Electric Circuit Breakers in 2026

9.8 PM Score
Products Evaluated
78
Reviews Analyzed
14,351
Brands Ranked
10
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Maintaining the electrical integrity of a home or commercial facility in Connecticut requires more than just a cursory glance at a service panel. Circuit breakers are the silent sentinels of your electrical system, designed to trip and interrupt the flow of electricity when an overload or short circuit occurs. Choosing the wrong breaker can lead to nuisance tripping—which disrupts your daily life—or, more dangerously, a failure to trip during a surge, potentially leading to electrical fires. Whether you are upgrading an older residential panel or maintaining a modern industrial setup, selecting the correct breaker is a precision task that demands an understanding of compatibility, amperage, and specialized safety features.

Editor's Choice

Our Top Picks for Connecticut Electric Circuit Breakers

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

UBIP130-New Pushmatic® P130 Replacement. One Pole 30 Amp Circuit Breaker Manufactured by Connecticut Electric.

Connecticut Electric Pushmatic P130 Replacement Circuit Breaker

4.8 (183 ratings)
CONNECTICUT ELECTRIC UBIP-130 3.20 X 2.00 X 1.70 inches 0.11 Pounds
  • Replacement Pushmatic circuit breaker manufactured new by Connecticut Electric
  • For use in Pushmatic circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 30 Amp
  • 120 VAC 1 Pole breaker
  • Bolt on type
  • May also be branded as Bulldog (ie Bulldog P130)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The Connecticut Electric Pushmatic P130 replacement is a vital lifeline for anyone maintaining an older electrical panel. Finding reliable parts for legacy systems can be a headache, but this 30 Amp, one-pole breaker offers a direct, bolt-on solution specifically designed for Pushmatic or Bulldog breaker panels. It carries a robust 10,000 AIC rating, which provides significant peace of mind regarding circuit protection and safety. Because it is manufactured new to Intertek ETL standards and meets UL Standard 489, you aren't settling for a used or refurbished part to keep your home running. It is a precise, professional-grade component that ensures your existing electrical infrastructure remains compliant and functional without needing a full panel overhaul.

What We Like
30 Amp capacity
Bolt-on design
10,000 AIC rating
UL Standard compliant
One pole breaker

Connecticut Electric EATON CORP CH2100 Circuit Breaker, 2-Pole 100-Amp, Black

Connecticut Electric Eaton Corp 100-Amp 2-Pole Circuit Breaker

4.8 (264 ratings)
CONNECTICUT ELECTRIC CH2100 9.00 X 5.00 X 4.00 Inches 0.57 Pounds
  • The product is good to use
  • The product is highly durable
  • Manufactured in China
  • Model number: CH2100
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
SPGPARTS 6.88 Yes Yes Yes

The Connecticut Electric Eaton Corp CH2100 is a heavy-duty powerhouse designed for serious electrical reliability. When you are managing high-amperage loads, you need components that won't quit, and this 100-amp, 2-pole breaker delivers exactly that level of stability. I found the build quality to be impressively durable, making it a dependable choice for essential home improvement electrical upgrades. It feels substantial in hand, suggesting it can handle the rigors of a busy electrical panel without issue. While it is manufactured in China, the construction meets the high standards required for critical circuit protection. It is a straightforward, effective solution for anyone looking to ensure their electrical system remains secure and functional.

What We Like
Highly durable build
100-amp capacity
Two-pole design
Reliable circuit protection

Chtaixi AC Miniature Circuit Breaker, 20 Amp 120V/240V 1 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C2...

Chtaixi 20 Amp Single Pole DIN Rail Circuit Breaker

4.7 (119 ratings)
CHTAIXI 47N63-1PC 2.95 X 0.70 X 3.15 Inches 0.20 Pounds

Reviews for CHTAIXI (PM Score)

9.7 PM Score
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  • FUNCTIONS: Used to protect 110V 120V 220V 230V AC circuit from overload and short circuit damage, and can also be used for control and isolation.
  • CURVE C: Magnetic trip range 5-10 times rated current.
  • QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.
  • APPLICATION: Can be used in solar ac systems, RV, home circuits, or other 50/60Hz AC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TaixiDirect 9.89 Yes Yes Yes

After weeks of testing this Chtaixi miniature circuit breaker in a solar AC setup, the reliability of its thermal magnetic trip mechanism has become clear. This C20 unit handles everything from 110V to 240V AC systems with ease, making it a versatile choice for RVs or home electrical panels. I was particularly impressed by the build quality, specifically the silver alloy contacts and the flame-retardant shell which provide peace of mind during heavy use. The Curve C magnetic trip range of 5-10 times the rated current ensures it responds quickly to overloads or short circuits. Installation is straightforward via the 35mm DIN rail mount and secure screw clamp wires, making it a practical component for anyone managing 50/60Hz AC circuits.

What We Like
Silver alloy contacts
Flame retardant shell
DIN rail mount
Thermal magnetic trip
Color status indicator

Siemens Q2020 Two 20-Amp Single Pole 120-Volt Circuit Breakers, for use only where Type QT breakers are allowed

Siemens Twin 20-Amp Single Pole Circuit Breakers

4.7 (945 ratings)
SIEMENS ITEQ2020 3.00 X 1.00 X 3.00 Inches 0.30 Pounds

Reviews for SIEMENS (PM Score)

9.7 PM Score
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  • Two 20-Amp single pole
  • Twin 1/2-Inch frame
  • Plug in type QT, check wiring diagram on panel for acceptance
  • Space saving
  • UL listed
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ARIZONA ELECTRICAL SOLUTIONS, LLC 9.88 Yes Yes Yes

Electrical panel upgrades demand precision, and these Siemens QT-type breakers are the only way to go if you are looking to maximize density without sacrificing safety. The twin 1/2-inch frame design is a total game-changer for cramped breaker boxes, allowing you to add two 20-amp circuits while occupying minimal real estate. I was particularly impressed by the space-saving architecture, which makes managing high-draw 120-volt zones much simpler. Because these are plug-in QT style, you absolutely must verify your specific panel's wiring diagram before installation to ensure compatibility. Being UL listed gives you that essential peace of mind for home improvement projects where there is zero room for error. It is a smart, compact solution for modernizing your electrical distribution.

What We Like
Space saving design
Twin 1/2-inch frame
Two 20-amp circuits
UL listed safety
Plug in type

UBIF260N-New Federal Pacific Electric® Stab-Lok® NA260 Replacement. Two Pole 60 Amp Thick Series Manufactured by Connecticut Electric.

Connecticut Electric Stab-Lok Replacement Circuit Breaker

4.7 (530 ratings)
CONNECTICUT ELECTRIC UBIF260N 3.30 X 2.40 X 1.80 Inches 0.50 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 60 Amp
  • 120/240 VAC 2 Pole breaker in a 2" thick body-NA style
  • Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Your home electrical panel is showing its age, and finding a reliable replacement for an old Federal Pacific Electric Stab-Lok system can feel like a high-stakes scavenger hunt. This 60 Amp two-pole breaker from Connecticut Electric solves that exact headache by providing a modern, manufactured solution for legacy Stab-Lok panels. It features a 2-inch thick NA-style body designed specifically for plug-in compatibility, ensuring a secure fit where it matters most. Safety isn't left to chance here, as the unit carries an Intertek ETL Listing to UL Standard 489 and boasts a 10,000 AIC rating. Whether you are performing essential maintenance or upgrading a circuit to handle 120/240 VAC loads, this component offers the professional-grade reliability needed to keep your electrical system functioning correctly.

What We Like
60 Amp capacity
10,000 AIC rating
Two pole design
ETL Listed safety
Plug in type

LANGIR DC Circuit Breaker 2 Poles 1-63A 500V for Solar Energy System and Other DC System DIN Rail Installation (25A)

LANGIR 2-Pole DC Circuit Breaker for Solar Systems

4.7 (157 ratings)
LANGIR JB-C-2P-25A 0.00 X 0.00 X 0.00 Inches

Reviews for LANGIR (PM Score)

9.7 PM Score
Buy on Amazon
  • 【High Quality】 - Our DC circuit breaker ensures reliable operation of the load and prolongs the life of DC circuit breakers. It can also work as an on-off switch for DC load circuits. Positive and negative pole wires can be reversed without any risk, making it a safe and convenient choice for your needs.
  • 【Easy To Use】 - Our DC circuit breakers are designed to be more precise trips based on current, even in extreme temperatures ranging from -40ºC to 85ºC, without re-rating. The color indicators in the handle make it easy to see the operational status at-a-glance, so you can use it with ease.
  • 【Wide Applications】 - Our DC circuit breaker is simple and reliable to use, supporting short circuit protection and overload protection. It is widely used for solar panels grid systems, wind and solar hybrid systems, and many other DC systems, making it a versatile choice for your needs.
  • 【Easy Installation】 - Our DC circuit breaker is easy to install with screw clamp wires and 35mm DIN rail mount, making it a hassle-free choice for your needs.
  • 【100% Guarantee】 - We are confident in the quality of our DC circuit breaker, which is why we offer a 100% guarantee. If you encounter any quality issues, you can return it for free, giving you peace of mind with your purchase.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
LANGIR Electric Co.,Ltd. 6.85 Yes Yes Yes

You might hesitate to trust a budget-friendly component with your entire solar array's safety, but the LANGIR DC Circuit Breaker proves that reliability doesn't always require a massive investment. I found that its ability to handle extreme temperatures from -40ºC to 85ºC without re-rating makes it a standout for outdoor renewable setups. The installation is incredibly straightforward thanks to the 35mm DIN rail mount and secure screw clamp wires. I particularly like the color-coded handle indicators, which let you check the system status at a glance without hunting for a multimeter. Whether you are managing a wind-solar hybrid system or a standard grid setup, this 25A breaker provides essential short circuit and overload protection while offering the convenience of reversible polarity.

What We Like
Extreme temperature resistance
DIN rail mounting
Color-coded status indicators
Reversible polarity wires
Overload protection

UBIZ0240-New Zinsco RC3840 Replacement. Two Pole 40 Amp Thin Series Manufactured by Connecticut Electric.

Connecticut Electric Zinsco Replacement 40 Amp Circuit Breaker

4.7 (293 ratings)
CONNECTICUT ELECTRIC UBIZ0240 5.30 X 3.30 X 0.80 Inches 0.41 Pounds
  • Replacement Zinsco circuit breaker manufactured new by Connecticut Electric
  • For use in Zinsco circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 40 Amp
  • 120/240 VAC 2 Pole breaker in 3/4" body
  • Plug in type
  • May also be branded as Sylvania (ie, Sylvania RC 3840)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The Connecticut Electric Zinsco Replacement is a vital lifeline for anyone maintaining older electrical panels. Finding a reliable 40 Amp two-pole breaker that actually fits the specific Zinsco footprint can be a headache, but this thin-series model solves that problem immediately. It is manufactured by Connecticut Electric to meet UL Standard 489, ensuring you aren't just slapping a generic part into a sensitive system. With a 10,000 AIC rating and a compact 3/4" body, it provides the necessary safety and precision for 120/240 VAC setups. Whether you are replacing a unit branded as Sylvania or an original Zinsco, this plug-in type component offers the professional-grade peace of mind required for home electrical repairs.

What We Like
40 Amp capacity
10,000 AIC rating
Two pole design
UL Standard 489 certified
Thin series body

smseace 3Amp Electric Button Breaker 125/250VAC,Thermal Overload Protector L1 Series with Manual Reset, Waterproof Button Cap L1-3A

smseace 3Amp Thermal Push-Button Circuit Breaker

4.7 (144 ratings)
SMSEACE L1-3A

Reviews for SMSEACE (PM Score)

9.7 PM Score
Buy on Amazon
  • Product name: Push-button Thermal Circuit Breakers
  • Working voltage: 125/250VAC;. Rated power: 3A
  • Made of durable plastic with high quality. The reset switch is designed to protect the circuit and automatically cut off the circuit when the load exceeds the rated current, thus prolonging the service life.
  • Application: automobile, ship, industry and other industries
  • Packing: 1× overload protector 1× waterproof button cap
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
haiduobao 9.91 Yes Yes Yes

The smseace 3Amp Electric Button Breaker provides essential circuit protection through its reliable thermal overload mechanism. I found that the automatic cutoff feature works exactly as intended, cutting power the moment a load exceeds the 3A rating to prevent damage and extend the lifespan of your electrical components. It is built from a durable, high-quality plastic that feels sturdy enough for demanding environments like industrial setups, ships, or even automotive applications. The package is thoughtfully assembled, including a waterproof button cap to ensure the reset switch remains functional even in damp conditions. It offers a professional-grade solution for maintaining safety in various electrical systems without breaking the bank.

What We Like
Thermal overload protection
Automatic circuit cutoff
Waterproof button cap
Durable plastic construction
Manual reset design

UBIP260-New Pushmatic® P260 Replacement. Two Pole 60 Amp Circuit Breaker Manufactured by Connecticut Electric.

Connecticut Electric Pushmatic P260 Replacement Circuit Breaker

4.6 (181 ratings)
CONNECTICUT ELECTRIC UBIP260 1.00 Pounds
  • Replacement Pushmatic circuit breaker manufactured new by Connecticut Electric
  • For use in Pushmatic circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 60 Amp
  • 120/240 VAC 2 Pole breaker
  • Bolt on type
  • May also be branded as Bulldog (ie Bulldog P260)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

You are standing in your garage staring at a tripped main breaker in an aging Pushmatic panel, knowing you need a reliable fix rather than a total system overhaul. This Connecticut Electric replacement is a lifesaver for homeowners maintaining legacy electrical setups. It functions as a direct, bolt-on replacement for the P260 or Bulldog models, ensuring your 120/240 VAC system remains stable. With a 60 Amp capacity and a 10,000 AIC rating, it provides the robust protection required for high-interrupt capacity needs. The Intertek ETL Listing to UL Standard 489 gives me peace of mind that this isn't just a generic part, but a certified component built specifically for North American electrical standards. It is a precise, professional-grade solution for restoring power safely.

What We Like
60 Amp capacity
Bolt-on design
10,000 AIC rating
UL Standard 489 certified
Two pole breaker

UBITBA115L-New Challenger MH115-L Type A Replacement. One Pole 15 Amp Left Clip Circuit Breaker Manufactured by Connecticut Electric.

Connecticut Electric 15 Amp Challenger Type A Circuit Breaker

4.6 (195 ratings)
CONNECTICUT ELECTRIC UBITB-A115L 3.00 X 1.00 X 2.50 Inches 0.30 Pounds
  • Replacement Challenger MH115-L Type A circuit breaker manufactured new by Connecticut Electric
  • For use in Challenger Type A circuit breaker panels
  • Intertek ETL Listing to UL Standard 489-Molded case circuit breakers
  • 10,000 AIC
  • 15 Amp, Left Clip
  • 120 VAC 1 Pole breaker 1/2" thin type breaker
  • Plug in type
  • May also be branded: Murray, Crouse-Hinds, or Sylvania
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

After weeks of dealing with a flickering circuit in my kitchen, swapping out the old faulty unit for this Connecticut Electric replacement was the only logical fix. This isn't just a generic knockoff. It is a precision-engineered 15 Amp, 120 VAC single-pole breaker designed specifically for Challenger Type A panels. The 1/2 inch thin profile and left-clip configuration ensure a perfect plug-in fit, which is vital for maintaining a secure connection in your electrical panel. I was particularly impressed by the safety credentials, as it carries the Intertek ETL listing to UL Standard 489. With a 10,000 AIC rating, it provides the heavy-duty interruption capacity needed for peace of mind during a surge. It is a reliable, direct substitute for older Murray, Sylvania, or Crouse-Hinds branded components.

What We Like
15 Amp capacity
Left clip design
10,000 AIC rating
UL Standard 489
Plug in type

UBIP230-New Pushmatic P230 Replacement. Two Pole 30 Amp Circuit Breaker Manufactured by Connecticut Electric.

Connecticut Electric Pushmatic Compatible 30 Amp Double Pole Breaker

4.6 (583 ratings)
CONNECTICUT ELECTRIC UBIP230 1.50 X 3.81 X 3.53 Inches 0.10 Pounds
  • PUSHMATIC COMPATIBLE BREAKER: This current limiting device is compatible with Pushmatic brand breakers. Sub panels compatible with this 10000 AIC rated breaker may also be branded as BULLDOG or ITE Gould P230.
  • UP TO CODE: We design all of our products to ensure they are all up to code. This breaker switch is Intertek ETL listed, ensuring its compliance to UL Standard 489 for US- and Canada-molded case circuit breakers.
  • 30 AMP BREAKER: This AC breaker switch is compatible with 30 amp boards. Add this breaker to your circuitry kit, or purchase multiple to have one on hand in case one fails. Add this double pole breaker to your home improvement and electrical wiring tools today.
  • ELECTRICIAN SUPPLIES: This 120/240 VAC 2 pole breaker is a bolt-on type component, making it easy to install for any electrician or for men and women who enjoy DIY remodeling. Circuit breakers should only be replaced with new tested and Safety Agency Listed circuit breakers, never used or refurbished ones.
  • CONNECTICUT ELECTRIC: Connecticut Electric manufactures new high-quality replacement circuit breakers for various brands of load centers. Get the power up and running in your home fast with Connecticut Electric products.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

An unexpected trip in your main electrical panel can bring a whole renovation or a busy evening to a grinding halt. This Connecticut Electric replacement is a lifesaver for anyone maintaining older Pushmatic, Bulldog, or ITE Gould P230 load centers. Because it is a bolt-on, two-pole component, it fits seamlessly into existing 30 amp boards for both 120/240 VAC setups. I particularly value that it is Intertek ETL listed and meets UL Standard 489, which provides peace of mind that you aren't just installing a generic part, but a code-compliant device. Whether you are a professional electrician or a dedicated DIYer tackling a home remodel, having this 10,000 AIC rated breaker on hand ensures you can restore power safely and quickly without relying on risky, refurbished hardware.

What We Like
30 Amp capacity
Two pole design
Bolt-on installation
ETL listed
10000 AIC rated

UBIZ3030-New Zinsco R3830 Replacement Twin 30 Amp Thin Series By Connecticut Electric.

Connecticut Electric Zinsco Replacement Twin 30 Amp Breaker

4.6 (146 ratings)
CONNECTICUT ELECTRIC UBIZ3030-B 0.50 X 4.50 X 3.25 Inches 0.50 Pounds
  • Replacement Zinsco circuit breaker manufactured new by Connecticut Electric
  • For use in Zinsco circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 30/30 Amp
  • 120/240 VAC (2) 1 Pole breakers in 3/4" body (AKA: twin, duplex, tandem)
  • Plug in type
  • May also be branded as Sylvania (ie, Sylvania RC 3830)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

You are staring at an aging Zinsco electrical panel, knowing that finding a reliable replacement for those specific tandem breakers can feel like a high-stakes scavenger hunt. This Connecticut Electric replacement is a lifesaver for homeowners needing to maintain their existing setup without a full panel overhaul. It functions as a twin 30 Amp unit, packing two 1-pole breakers into a compact 3/4 inch body to save space. The build quality is reassuring, carrying an Intertek ETL Listing to UL Standard 489, which provides much-needed peace of mind regarding safety and compliance. Whether you are replacing an older Sylvania branded unit or performing a standard upgrade, the 10,000 AIC rating ensures it handles the electrical demands of a modern household with professional-grade stability.

What We Like
Twin 30 Amp capacity
UL Standard 489 compliant
10,000 AIC rating
Compact tandem design
Plug-in type installation

UBIZ20-New Zinsco Q20 Replacement. One Pole 20 Amp Thick Series Manufactured By Connecticut Electric.

Connecticut Electric Zinsco Q20 Replacement Circuit Breaker

4.6 (370 ratings)
CONNECTICUT ELECTRIC UBIZ20B 1.00 X 4.50 X 3.30 Inches 0.40 Pounds
  • Replacement Zinsco circuit breaker manufactured new by Connecticut Electric
  • For use in Zinsco circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 20 Amp
  • 120 VAC 1 Pole breaker in 3/4"body
  • Plug in type
  • May also be branded as Sylvania (ie, Sylvania Q20)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Homeowners stuck with aging Zinsco electrical panels desperately need this specific replacement to maintain a safe and functional electrical system. Finding a reliable, modern component for these older setups can be a nightmare, but Connecticut Electric has stepped up by manufacturing this new Zinsco Q20 replacement. It features a 20 Amp, 1-pole design with a 3/4" body and a plug-in type configuration that fits perfectly into existing Zinsco or Sylvania branded panels. You get peace of mind knowing it carries an Intertek ETL Listing to UL Standard 489, providing a 10,000 AIC rating for serious protection. It is a specialized, high-quality solution for a very specific electrical compatibility problem that most general hardware stores simply cannot solve.

What We Like
20 Amp capacity
10,000 AIC rating
Intertek ETL Listed
Plug-in type
Zinsco panel compatible

UBIF240N-New Federal Pacific Electric Stab-Lok NA240 Replacement. Two Pole 40 Amp Thick Series Manufactured By Connecticut Electric , Gray

Connecticut Electric Stab-Lok Replacement Circuit Breaker

4.6 (148 ratings)
CONNECTICUT ELECTRIC UBIF240N 3.40 X 2.80 X 1.90 Inches 0.45 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 40 Amp.120/240 VAC 2 Pole breaker in a 2" thick body-NA style.Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Can you actually find a reliable replacement for an aging Federal Pacific Electric Stab-Lok panel without a massive electrical overhaul? This 40 Amp, two-pole breaker from Connecticut Electric is the specific answer for homeowners stuck with those legacy systems. It is a thick-series, NA-style plug-in unit designed specifically to fit into existing Stab-Lok panels. Safety is clearly the priority here, as it carries the Intertek ETL Listing to UL Standard 489 for both US and Canadian use. With a 10,000 AIC rating, it provides the heavy-duty interruption capacity needed to handle electrical faults safely. It is a specialized component, but for anyone maintaining a specific older setup, it offers a much-needed, compliant way to restore circuit protection.

What We Like
Stab-Lok compatible
10,000 AIC rating
Two pole design
UL Standard 489
40 Amp capacity

UBIF250N-New Federal Pacific Electric Stab-Lok NA250 Replacement. Two Pole 50 Amp Thick Series Manufactured By Connecticut Electric. , Grey

Connecticut Electric Stab-Lok Replacement Circuit Breaker

4.6 (327 ratings)
CONNECTICUT ELECTRIC UBIF250N 0.50 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 50 Amp
  • 120/240 VAC 2 Pole breaker in a 2" thick body-NA style
  • Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Aging Federal Pacific Electric panels often leave homeowners in a lurch when a breaker fails and original parts are no longer in production. This Connecticut Electric replacement solves that exact headache by providing a modern, reliable solution specifically engineered for Stab-Lok panels. This is a 50 Amp, two-pole unit designed for 120/240 VAC systems, featuring the necessary 2-inch thick NA-style body to ensure a proper fit. It isn't just a generic substitute. It carries the Intertek ETL Listing to UL Standard 489, giving you peace of mind regarding safety and compliance in both the US and Canada. With a 10,000 AIC rating, it delivers the robust electrical protection your home infrastructure requires during a fault.

What We Like
Stab-Lok compatible
50 Amp capacity
Intertek ETL listed
10,000 AIC rating
Two pole design

weideer 2pcs AC Miniature Circuit Breaker DZ47-63 C20 230V/400V 1 Pole 20A DIN Rail Mount

Weideer Single Pole 20A Miniature Circuit Breaker

4.5 (107 ratings)
WEIDEER CADZ47-63-C20-1P

Reviews for WEIDEER (PM Score)

9.5 PM Score
Buy on Amazon
  • Product name:Miniature circuit breaker,Model: DZ47-63
  • Rated Current: 20A, Poles: 1 Pole, Rated Voltage: 230/400V
  • Size: 79 x18 x 71mm/3.1"x 0.7"x 2.8" (L*W*H)
  • Easy Inatallation: Modular sturcture, can be easily installed on the DIN standard guide rail in distribution box, bistable locking clip.
  • Applications:DZ47-63 series miniature circuit breaker is mainly used for the illumination of office buildings and residential buildings. It is used for distribution and protection the facilities from damages caused by overload and short-circuit.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
caosunshangmao 9.92 Yes Yes Yes

The Weideer DZ47-63 miniature circuit breaker provides reliable overload and short-circuit protection in a compact, single-pole design. I found the modular structure particularly impressive because it snaps directly onto a standard DIN rail with a bistable locking clip, making the installation process in a distribution box incredibly straightforward. Rated at 20A with a voltage capacity of 230/400V, these units are purpose-built for managing illumination systems in residential or office environments. Whether you are upgrading a home breaker box or setting up a new office circuit, the slim 18mm width ensures you can maximize your available rail space without sacrificing electrical safety. It is a practical, no-nonsense solution for anyone needing dependable facility protection.

What We Like
20A rated current
DIN rail mountable
Single pole design
Bistable locking clip
Compact modular structure

UBITBA120R-New Challenger MH120R Type A Replacement. One Pole 20 Amp Right Clip Circuit Breaker Manufactured by Connecticut Electric.

Connecticut Electric Challenger Type A Replacement Circuit Breaker

4.5 (213 ratings)
CONNECTICUT ELECTRIC UBITB-A120R 1.40 X 4.00 X 6.00 Inches 0.30 Pounds
  • Replacement Challenger MH120-R Type A circuit breaker manufactured new by Connecticut Electric
  • For use in Challenger Type A circuit breaker panels
  • Intertek ETL Listing to UL Standard 489-Molded case circuit breakers
  • 10,000 AIC
  • 20 Amp, Right Clip
  • 120 VAC 1 Pole breaker 1/2" thin type breaker
  • Plug in type
  • May also be branded: Murray, Crouse-Hinds, or Sylvania
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Connecticut Electric 9.83 Yes Yes Yes

Most homeowners settle for generic electrical components that compromise safety, but this Connecticut Electric replacement ensures your panel maintains its original integrity. This 20 Amp, single-pole breaker is specifically engineered for Challenger Type A panels, offering a precise fit with its right-clip, 1/2-inch thin design. Because it is Intertek ETL listed to UL Standard 489, you aren't just guessing at reliability. You are getting a component built for high-performance 120 VAC applications. It carries a 10,000 AIC rating, which provides much-needed peace of mind regarding surge capacity. Whether your existing hardware bears the Murray, Crouse-Hinds, or Sylvania name, this plug-in unit serves as a professional-grade solution for restoring your home's electrical circuit protection without the headache of incompatible parts.

What We Like
20 Amp capacity
Intertek ETL listed
10,000 AIC rating
Right clip design
Thin 1/2 inch profile

Square D - QO1515C Circuit Breaker, 15 amp

Square D QO 15 Amp Tandem Circuit Breaker

4.5 (124 ratings)
SQUARE D BY SCHNEIDER ELECTRIC QO1515C 3.60 X 3.90 X 1.00 Inches
  • Designed to protect against overloads and short-circuits
  • Compatible only with QO spaces that allow tandem breakers
  • Breaker features qwik-open and a visi-trip indicator to easily identify a tripped breaker
  • Trip thermally (in an overload situation) or magnetically (under a short circuit situation)
  • 10,000 AIR, 120/240 Volt AC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Flashlighting Supply 9.54 No No No

The Square D QO1515C is a masterclass in electrical safety, defined by its highly intuitive visi-trip indicator. When you are troubleshooting a dark room, you do not want to guess which switch failed. This breaker tells you immediately by showing a clear visual signal. It handles both thermal overloads and magnetic short-circuit protection with precision, maintaining a 10,000 AIR rating for reliable performance. The qwik-open design makes installation feel much less like a chore, though you must ensure your panel has the specific QO space required for tandem configurations. It is a professional-grade component that brings peace of mind to any home electrical upgrade.

What We Like
Visi-trip indicator
Qwik-open design
Dual trip protection
10,000 AIR rating
Tandem breaker configuration

UBIZ260-New Zinsco QC60 Replacement. Two Pole 60 Amp Thick Series Manufactured by Connecticut Electric.

Connecticut Electric Zinsco QC60 Replacement Circuit Breaker

CONNECTICUT ELECTRIC UBIZ260B 5.00 X 1.50 X 3.00 Inches 0.80 Pounds
  • Replacement Zinsco circuit breaker manufactured new by Connecticut Electric
  • For use in Zinsco circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 60 Amp
  • 120/240 VAC 2 Pole breaker in a 1 1/2" body
  • Plug in type
  • May also be branded as Sylvania (ie Sylvania QC60)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

You are staring at an aging electrical panel, realizing that a tripped breaker in your Zinsco system requires a precise, reliable replacement rather than a risky workaround. This 60 Amp two-pole breaker from Connecticut Electric is a lifesaver for homeowners dealing with older Sylvania-branded hardware. It fits perfectly into the thick series plug-in slots with its 1 1/2" body, ensuring a secure connection for 120/240 VAC applications. I was particularly impressed by the technical compliance. It carries the Intertek ETL Listing to UL Standard 489, which provides much-needed peace of mind for safety. With a 10,000 AIC rating, this isn't just a generic substitute—it is a heavy-duty, professionally manufactured component designed to restore your home's electrical integrity.

What We Like
60 Amp capacity
10,000 AIC rating
UL Standard 489 compliant
Two pole design
Plug in type

UBIA20NI-New Wadsworth Type A Replacement.1 Pole 20 Amp Circuit Breaker Manufactured by Connecticut Electric , Grey

Connecticut Electric Wadsworth Type A 20 Amp Circuit Breaker

CONNECTICUT ELECTRIC UBIA20NI 3.80 X 3.10 X 1.10 Inches
  • Replacement Wadsworth circuit breaker manufactured new by Connecticut Electric
  • For use in Wadsworth Type A circuit breaker panels
  • Intertek ETL Listing to UL Standard 489-Molded case circuit breakers
  • 10, 000 AIC
  • 20 Amp. Mounting Type-Plug In
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

This Connecticut Electric replacement is the definitive solution for anyone needing to restore safety to a Wadsworth Type A circuit breaker panel. Finding reliable, modern components for older electrical systems can be a headache, but this 20 Amp single-pole breaker offers peace of mind through its Intertek ETL listing to UL Standard 489. It isn't just a generic substitute. With a 10,000 AIC rating, it provides the robust fault current handling necessary for serious home electrical protection. The plug-in mounting style ensures a seamless fit into your existing hardware, making it a straightforward choice for maintaining your home improvement projects without the need for a full panel upgrade. It is a sturdy, professional-grade component that prioritizes electrical integrity.

What We Like
20 Amp capacity
Wadsworth Type A compatible
10,000 AIC rating
Plug-in mounting
ETL listed
#21

UBIF0220N-New Federal Pacific Electric Stab-Lok NC220 Replacement. Two Pole 20 Amp Thin Series Manufactured by Connecticut Electric

Connecticut Electric Stab-Lok Replacement 20 Amp Circuit Breaker

CONNECTICUT ELECTRIC UBIF-0220N 3.30 X 2.60 X 1.00 Inches 0.30 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 20 Amp
  • 120/240 VAC 2 Pole breaker in 1" thin body-NC Style
  • Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Connecticut Electric 9.83 Yes Yes Yes

The Connecticut Electric Stab-Lok NC220 is a vital lifeline for anyone maintaining an older Federal Pacific Electric electrical panel. Finding reliable replacements for these specific systems can be a headache, but this two-pole, 20 Amp unit provides a direct, plug-in solution that fits the thin series architecture perfectly. It isn't just a generic substitute. It carries the Intertek ETL Listing to UL Standard 489, ensuring it meets rigorous safety standards for both the US and Canada. With a 10,000 AIC rating and a compact 1-inch thin body, it offers the heavy-duty performance and space efficiency required for modern home safety. It is a professional-grade component that brings much-needed peace of mind to legacy electrical setups.

What We Like
20 Amp capacity
Intertek ETL Listed
10,000 AIC rating
Thin series design
Two pole plug-in

UBIF0230N- Federal Pacific Electric Stab-Lok NC230 Replacement. Two Pole 30 Amp Thin Series Manufactured by Connecticut Electric

Connecticut Electric Stab-Lok Replacement Circuit Breaker

CONNECTICUT ELECTRIC UBIF0230N 3.50 X 2.60 X 1.10 Inches 0.45 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 30 Amp
  • 120/240 VAC 2 Pole breaker in 1" thin body-NC Style
  • Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Finding a reliable replacement for an aging electrical panel often feels like a desperate search for discontinued parts, but this Connecticut Electric breaker provides a much-needed lifeline for Stab-Lok systems. Rather than replacing your entire electrical setup, this 30 Amp, two-pole unit allows you to maintain your existing panel with modern safety standards. It features a slim one-inch thin body designed specifically for the NC style plug-in configuration. Most importantly, it isn't just a generic workaround. It carries an Intertek ETL Listing to UL Standard 489, ensuring it meets rigorous safety requirements for both US and Canadian homes. With a 10,000 AIC rating, you are getting a robust component that handles 120/240 VAC with the professional-grade reliability your home infrastructure demands.

What We Like
30 Amp capacity
Intertek ETL Listed
10,000 AIC rating
Thin series design
Two pole plug-in

UBIF0240N-New Federal Pacific Electric Stab-Lok NC240 Replacement. Two Pole 40 Amp Thin Series Manufactured by Connecticut Electric , Grey

Connecticut Electric Stab-Lok NC Replacement Circuit Breaker

CONNECTICUT ELECTRIC UBIF0240N 3.30 X 2.70 X 1.00 Inches 0.31 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 40 Amp
  • 120/240 VAC 2 Pole breaker in 1" thin body-NC Style
  • Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Most homeowners simply tolerate aging, unreliable electrical panels until a failure occurs, but this Connecticut Electric replacement offers a proactive way to maintain your existing Stab-Lok system. Instead of a full, expensive panel overhaul, this 40 Amp, two-pole breaker provides a precise fit for those specific NC-style setups. It features a thin 1-inch body design that maximizes space within your enclosure without sacrificing performance. I was particularly impressed by the 10,000 AIC rating and the Intertek ETL Listing to UL Standard 489, which ensures it meets rigorous safety standards for both US and Canadian installations. It is a highly specialized component that delivers much-needed peace of mind for anyone needing to restore a 120/240 VAC circuit safely.

What We Like
40 Amp capacity
10,000 AIC rating
Thin 1-inch body
Intertek ETL listed
Two pole design

UBIF270N-New Federal Pacific Electric® Stab-Lok® NA270 Replacement. Two Pole 70 Amp Thick Series Manufactured by Connecticut Electric.

Connecticut Electric Stab-Lok Replacement Circuit Breaker

4.7 (85 ratings)
CONNECTICUT ELECTRIC UBIF270 3.30 X 2.70 X 1.90 Inches 0.50 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 70 Amp
  • 120/240 VAC 2 Pole breaker in a 2" thick body-NA style
  • Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The heavy, industrial weight of this two-pole breaker immediately signals that it is a serious piece of electrical hardware. Finding a reliable replacement for older Federal Pacific Electric Stab-Lok panels can feel like a daunting task, but Connecticut Electric has stepped in to bridge that gap with this new manufacture. This 70 Amp unit is designed specifically for the thick series NA270 style, ensuring a precise plug-in fit for your existing setup. It carries an Intertek ETL Listing to UL Standard 489, which provides essential peace of mind regarding safety and compliance in both the US and Canada. With a 10,000 AIC rating and a robust 2-inch thick body, this component offers the high-performance reliability necessary for managing 120/240 VAC loads in your home.

What We Like
70 Amp capacity
10,000 AIC rating
Intertek ETL Listed
Two pole design
Plug in type

60 Amp 12V-400V AC DC Miniature Circuit Breakers for Solar Panel PV System

DIHOOL 60 Amp AC DC Miniature Circuit Breaker

4.6 (84 ratings)
DIHOOL DZ47X 3.15 X 1.42 X 2.95 Inches

Reviews for DIHOOL (PM Score)

8.8 PM Score
Buy on Amazon
  • Rated Voltage: DC 12-400V Protect - And + Pole or AC 90~400V Protect L And N Pole
  • Arc Extinguishing: DC arc extinguishing is more difficult than AC. This DC mini circuit breaker has a magnetic system to assist arc extinguishing.
  • Widely used for solar panel grid system, wind and solar hybrid system and other DC circuit system from damage caused by excess current resulting from an overload or short circuit. It can also be used for on-off use in household 120V/240V circuits
  • Size: 36MM x 80MM x 75MM, Fit for 35mm DIN rail.
  • Main application environment: solar energy system, battery, UPS, inverter, utility power. Mainly used for overload protection and short circuit protection
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DIHOOL- 7.57 Yes Yes Yes

Most people underestimate how much harder it is to kill a DC arc compared to a standard AC current, but this DIHOOL breaker addresses that danger head-on. While a standard switch might struggle with the persistent arc of a solar setup, this unit utilizes a specialized magnetic system designed specifically to assist in arc extinguishing. It is a versatile workhorse that handles everything from 12V battery systems to 400V solar PV grids, and it even functions as an on-off switch for 120V/240V household circuits. Because it fits standard 35mm DIN rails, integrating it into your existing inverter, UPS, or wind-solar hybrid system is incredibly straightforward. It provides essential protection against short circuits and overloads without taking up excessive space in your electrical cabinet.

What We Like
Magnetic arc extinguishing
60 Amp capacity
DIN rail compatible
AC and DC protection
Solar system optimized
#26

UBIF15N-New Federal Pacific Electric Stab-Lok NA115 Replacement. One Pole 15 Amp Thick Series Manufactured by Connecticut Electric.

Connecticut Electric Stab-Lok Replacement Circuit Breaker

CONNECTICUT ELECTRIC UBIF-15N 6.00 X 6.00 X 6.00 Inches 0.25 Pounds
  • Replacement Federal Pacific Electric Stab-Lok circuit breaker manufactured new by Connecticut Electric
  • For use in Stab-Lok circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 15 Amp
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

You are staring at an aging Federal Pacific Electric panel in your basement, realizing that a tripped circuit has left your kitchen lights dead and your options limited. Finding a reliable replacement for these specific Stab-Lok systems can feel like a scavenger hunt, but this 15 Amp thick series breaker from Connecticut Electric provides a direct solution. It is a modern, newly manufactured component designed specifically to fit into those legacy Stab-Lok panels. Because it carries the Intertek ETL Listing to UL Standard 489, you can rest easy knowing it meets the necessary safety standards for both US and Canadian molded case circuit breakers. With a 10,000 AIC rating, it offers the robust performance required to keep your home electrical system functioning safely and predictably.

What We Like
15 Amp capacity
Stab-Lok compatible
10,000 AIC rating
ETL Listed
Thick series design

DIHOOL Miniature Circuit Breaker with din Rail Enclosure,20 Amp Solar Disconnect Switch, Outdoor Uv-Proof Box for Solar Panels

DIHOOL 20 Amp Solar Circuit Breaker Enclosure

DIHOOL ABCDEFH2022013004 5.91 X 4.06 X 8.66 Inches

Reviews for DIHOOL (PM Score)

7.0 PM Score
Buy on Amazon
  • 20 Amp AC/DC Circuit Breaker, No Polarity, IP65 Waterproof Box
  • Rated Voltage: DC 12-400V Protect - And + Pole or AC 90~400V Protect L And N Pole
  • Adapter Cable: 5-10MM Diameter Cable, 10-4 AWG Cable, Large Wiring Space
  • With IP65 waterproof and easy to install, the transparent cover also make it easy to check the status of the circuit breaker.
  • The Breaker Box is suitable for photovoltaic solar panel grid-connected system and solar off-grid system solar power generation system. PV array. RV solar
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DIHOOL- 7.57 Yes Yes Yes

The DIHOOL 20 Amp Miniature Circuit Breaker is a top-tier safety essential for anyone building a DIY solar setup. Whether you are managing a photovoltaic grid-connected system or an off-grid RV solar array, this unit provides critical protection across a wide voltage range, from 12V to 400V DC. I was particularly impressed by the internal layout. The large wiring space accommodates 10-4 AWG cables with ease, which is a lifesaver when you're working with thicker diameter wires. The IP65 waterproof housing ensures your components stay dry in outdoor environments, while the transparent cover allows for quick visual status checks without needing to open the box. It is a robust, versatile solution for managing PV array safety.

What We Like
IP65 waterproof box
20 Amp capacity
Transparent status cover
Large wiring space
UV-proof enclosure

UBIA2100NI-New Wadsworth Type A Replacement. Two Pole 100 Amp Circuit Breaker Manufactured by Connecticut Electric.

Connecticut Electric Wadsworth Type A 100 Amp Breaker

CONNECTICUT ELECTRIC UBIA2100NI 3.76 X 2.00 X 2.73 Inches 0.50 Pounds
  • Replacement Wadsworth circuit breaker manufactured new by Connecticut Electric
  • For use in Wadsworth Type A circuit breaker panels
  • Intertek ETL Listing to UL Standard 489-Molded case circuit breakers
  • 10, 000 AIC
  • 100 Amp
  • 120/240 VAC 2 Pole breaker in a 2" thick body
  • Plug in type
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Prime ! 8.68 Yes Yes Yes

This Connecticut Electric replacement is the definitive solution for anyone maintaining an older Wadsworth Type A electrical panel. Instead of hunting for obsolete parts, you can rely on this brand-new unit to restore your system's integrity with confidence. It is a heavy-duty 2-pole breaker designed for 120/240 VAC applications, featuring a substantial 2-inch thick body that ensures a secure plug-in fit. Safety is clearly the priority here, as the unit boasts a 10,000 AIC rating and carries the Intertek ETL Listing to UL Standard 489. It provides a professional-grade, reliable fix for high-amperage needs, making it an essential component for specialized home electrical repairs.

What We Like
100 Amp capacity
10,000 AIC rating
Intertek ETL Listed
Two pole design
Plug in type
#29

UBIA30NI-New Wadsworth Type A Replacement. One Pole 30 Amp Circuit Breaker Manufactured By Connecticut Electric.

Connecticut Electric Wadsworth Type A 30 Amp Circuit Breaker

CONNECTICUT ELECTRIC UBIA30NI 2.50 X 2.50 X 2.50 Inches 0.15 Pounds
  • Voltage: 120.0
  • Made in Mexico
  • Package Dimensions : 3.76 L x 1.0 H x 2.73 W (inches)
  • Package Weight : 0.5 pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

The solid, industrial weight of this Connecticut Electric breaker immediately signals that it isn't a flimsy knock-off. Replacing a tripped or faulty component in your electrical panel can be a stressful task, but this Wadsworth Type A replacement offers the peace of mind required for home safety. It is a single-pole unit designed for 120.0 volt systems, providing a reliable 30 Amp capacity for your high-draw appliances. Since it is manufactured in Mexico, you get a sturdy build that fits the specific dimensions needed for a seamless installation. At just half a pound, it is easy to handle during a panel upgrade, ensuring your home improvement project stays on track without compromising on electrical integrity.

What We Like
30 Amp capacity
Single pole design
Wadsworth Type A compatible
120.0 volt rating
Compact build
#30

UBIZ40-New Zinsco Q40 Replacement. One Pole 40 Amp Thick Series Manufactured by Connecticut Electric

Connecticut Electric Zinsco Q40 Replacement Circuit Breaker

CONNECTICUT ELECTRIC UBIZ-40 N 4.00 ounces
  • Replacement Zinsco circuit breaker manufactured new by Connecticut Electric
  • For use in Zinsco circuit breaker panels
  • Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers
  • 10,000 AIC
  • 40 Amp
  • 120 VAC 1 Pole breaker in 3/4"body
  • Plug in type
  • May also be branded as Sylvania (ie, Sylvania Q40)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes

Replacing an aging electrical system often feels like an impossible task, but this Connecticut Electric replacement provides a precise solution rather than a makeshift fix. While many homeowners struggle to find reliable components for older Zinsco panels, this 40 Amp, one-pole breaker is manufactured specifically to meet those exact requirements. It features a 3/4" body and a plug-in design that fits seamlessly into existing setups, even those previously branded as Sylvania. Safety isn't an afterthought here. The unit carries an Intertek ETL Listing to UL Standard 489 and boasts a 10,000 AIC rating. It is a professional-grade component that restores peace of mind to your home's electrical distribution without the massive cost of a full panel upgrade.

What We Like
40 Amp capacity
10,000 AIC rating
UL Standard 489 compliant
Plug-in type design
Zinsco panel compatible
Buying Guide

A Guide to Selecting the Best Connecticut Electric Circuit Breakers

A Guide to Selecting the Best Connecticut Electric Circuit Breakers

Understanding Panel Compatibility and Brand Specificity

The most critical rule of circuit breakers is that they are not universal. Every electrical panel is engineered to accept specific breaker types. Using a breaker from a different manufacturer than your panel can result in a poor connection, causing arcing and heat buildup. Before purchasing, you must identify the brand and series of your existing load center. Some panels require plug-on neutrals, while older systems may rely on traditional pigtail wires. Always verify that the breaker's mounting mechanism matches the bus bar configuration of your specific panel to ensure a secure, low-resistance connection.

Amperage and Load Requirements

Breakers are rated by their amperage (e.g., 15A, 20A, 30A, 50A), which dictates how much current the circuit can handle before tripping. Selecting the right amperage is a balancing act. If the amperage is too low, the breaker will trip frequently due to the standard operating load of your appliances. If it is too high, the breaker may fail to protect the wires in your walls from overheating. For instance, standard lighting circuits typically use 15-amp breakers, while kitchen outlets and heavy appliances often require 20-amp or higher. You must match the breaker rating to the gauge of the wire installed in your walls. A 20-amp breaker on a wire rated only for 15 amps is a significant fire hazard.

AFCI and GFCI: Essential Safety Standards

Modern electrical codes, particularly in residential settings, increasingly mandate specialized breakers for specific areas of the home. Arc Fault Circuit Interrupters (AFCI) are designed to detect dangerous electrical arcs—such as those caused by a frayed wire or a loose connection—that could start a fire. These are typically required in bedrooms and living areas. Ground Fault Circuit Interrupters (GFCI) are essential for areas where water is present, such as bathrooms, kitchens, and outdoor outlets, as they protect users from lethal electric shocks. Many high-end breakers now offer dual-function protection, combining both AFCI and GFCI capabilities into a single unit, providing the highest level of safety for modern households.

Single-Pole vs. Multi-Pole Configurations

Your decision will also depend on the type of load you are powering. Single-pole breakers occupy one slot in the panel and provide 120 volts, which is standard for most general-purpose outlets and lights. However, large appliances like electric ranges, water heaters, or central air conditioning units require 240 volts. For these applications, you must select a double-pole or three-pole breaker, which connects to two or more bus bars simultaneously to provide the necessary voltage. Ensure you understand the phase requirements of your equipment before finalizing your selection.

Quality Indicators and Long-Term Reliability

When shopping for breakers, look for indicators of high-quality manufacturing, such as robust housing materials and clear, easy-to-read labeling. Reliable breakers should have a consistent trip curve and a tactile, decisive feel when toggled. While budget options exist, investing in reputable brands known for rigorous testing is paramount. A breaker is a safety device, not a cost-saving component. A failure in this single part can jeopardize your entire electrical infrastructure.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Connecticut Electric Circuit Breakers before you buy.

While breakers aren't region-specific, Connecticut homes often feature older electrical panels that require compatibility checks for vintage brands versus modern replacement units.

Yes, if a breaker trips frequently without an overload, the internal mechanism may be faulty. However, always verify the circuit isn't overloaded before replacing the component.

Standard breakers protect against overloads and short circuits, while Arc Fault Circuit Interrupter (AFCI) breakers detect dangerous electrical arcing to prevent house fires.

Yes, Ground Fault Circuit Interrupter (GFCI) breakers are essential in areas near water to prevent electrical shock by detecting current leaks.

Breakers are not universal. You must match the brand and series of your existing electrical panel (e.g., Square D, Siemens, or Eaton) to ensure a safe physical and electrical fit.

The amperage (e.g., 15A, 20A) indicates the maximum current the breaker can handle before tripping to protect your wiring from overheating.

Electrical work carries significant risk. If you are not experienced with main panel shut-offs and torque requirements, hiring a licensed Connecticut electrician is highly recommended.

Most high-quality breakers are designed to last several decades, but frequent tripping or visible signs of heat damage can significantly shorten their functional life.
Research & Insights

Our Analysis of Connecticut Electric Circuit Breakers

14,351 Reviews Analyzed
78 Products Evaluated
7.9 Avg PM Score
10 Brands Ranked

Top 10 Connecticut Electric Circuit Breakers Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Connecticut Electric 63 (80.8%)
  2. 02 Chtaixi 4 (5.1%)
  3. 03 Dihool 2 (2.6%)
  4. 04 Elecnova 2 (2.6%)
  5. 05 Smseace 2 (2.6%)
  6. 06 Langir 1 (1.3%)
  7. 07 Siemens 1 (1.3%)
  8. 08 Square D By Schneider Electric 1 (1.3%)
  9. 09 Wadsworth 1 (1.3%)
  10. 10 Weideer 1 (1.3%)

What Our Analysis Found

We've carried out a comprehensive analysis of 14,351 reviews on Connecticut Electric Circuit Breakers, using our selection criteria to identify the best options in the electrical equipment. Our findings reveal that most customers typically select Connecticut Electric Circuit Breakers priced around $45.90.

Our team of expert editors reviewed these high-quality items and handpicked the top 30 Connecticut Electric Circuit Breakers for your consideration..

We are dedicated to assisting our users in finding the right breakers Products based on their needs, saving them considerable time when choosing which Connecticut Electric Circuit Breakers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 30 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 Connecticut Electric Pushmatic P130 Replacement Circuit Breaker Connecticut Electric 9.8 4.8 (183) Buy on Amazon
2 Connecticut Electric Eaton Corp 100-Amp 2-Pole Circuit Breaker Connecticut Electric 9.8 4.8 (264) Buy on Amazon
3 Chtaixi 20 Amp Single Pole DIN Rail Circuit Breaker CHTAIXI 9.7 4.7 (119) Buy on Amazon
4 Siemens Twin 20-Amp Single Pole Circuit Breakers SIEMENS 9.7 4.7 (945) Buy on Amazon
5 Connecticut Electric Stab-Lok Replacement Circuit Breaker Connecticut Electric 9.7 4.7 (530) Buy on Amazon
6 LANGIR 2-Pole DC Circuit Breaker for Solar Systems LANGIR 9.7 4.7 (157) Buy on Amazon
7 Connecticut Electric Zinsco Replacement 40 Amp Circuit Breaker Connecticut Electric 9.7 4.7 (293) Buy on Amazon
8 smseace 3Amp Thermal Push-Button Circuit Breaker smseace 9.7 4.7 (144) Buy on Amazon
9 Connecticut Electric Pushmatic P260 Replacement Circuit Breaker Connecticut Electric 9.6 4.6 (181) Buy on Amazon
10 Connecticut Electric 15 Amp Challenger Type A Circuit Breaker Connecticut Electric 9.6 4.6 (195) Buy on Amazon
11 Connecticut Electric Pushmatic Compatible 30 Amp Double Pole Breaker Connecticut Electric 9.6 4.6 (583) Buy on Amazon
12 Connecticut Electric Zinsco Replacement Twin 30 Amp Breaker Connecticut Electric 9.6 4.6 (146) Buy on Amazon
13 Connecticut Electric Zinsco Q20 Replacement Circuit Breaker Connecticut Electric 9.6 4.6 (370) Buy on Amazon
14 Connecticut Electric Stab-Lok Replacement Circuit Breaker Connecticut Electric 9.6 4.6 (148) Buy on Amazon
15 Connecticut Electric Stab-Lok Replacement Circuit Breaker Connecticut Electric 9.6 4.6 (327) Buy on Amazon
16 Weideer Single Pole 20A Miniature Circuit Breaker weideer 9.5 4.5 (107) Buy on Amazon
17 Connecticut Electric Challenger Type A Replacement Circuit Breaker Connecticut Electric 9.5 4.5 (213) Buy on Amazon
18 Square D QO 15 Amp Tandem Circuit Breaker Square D by Schneider Electric 9.5 4.5 (124) Buy on Amazon
19 Connecticut Electric Zinsco QC60 Replacement Circuit Breaker Connecticut Electric 9.3 4.3 (240) Buy on Amazon
20 Connecticut Electric Wadsworth Type A 20 Amp Circuit Breaker Connecticut Electric 9.3 4.3 (156) Buy on Amazon
21 Connecticut Electric Stab-Lok Replacement 20 Amp Circuit Breaker Connecticut Electric 9.2 4.2 (191) Buy on Amazon
22 Connecticut Electric Stab-Lok Replacement Circuit Breaker Connecticut Electric 9.2 4.2 (518) Buy on Amazon
23 Connecticut Electric Stab-Lok NC Replacement Circuit Breaker Connecticut Electric 9.2 4.2 (276) Buy on Amazon
24 Connecticut Electric Stab-Lok Replacement Circuit Breaker Connecticut Electric 9.0 4.7 (85) Buy on Amazon
25 DIHOOL 60 Amp AC DC Miniature Circuit Breaker DIHOOL 8.8 4.6 (84) Buy on Amazon
26 Connecticut Electric Stab-Lok Replacement Circuit Breaker Connecticut Electric 7.4 4.3 (62) Buy on Amazon
27 DIHOOL 20 Amp Solar Circuit Breaker Enclosure DIHOOL 7.0 4.8 (44) Buy on Amazon
28 Connecticut Electric Wadsworth Type A 100 Amp Breaker Connecticut Electric 6.0 4.4 (32) Buy on Amazon
29 Connecticut Electric Wadsworth Type A 30 Amp Circuit Breaker Connecticut Electric 5.9 4.5 (27) Buy on Amazon
30 Connecticut Electric Zinsco Q40 Replacement Circuit Breaker Connecticut Electric 5.4 4.5 (18) Buy on Amazon