Best Screw Miniature Circuit Breakers in 2026

Model: DZ47-63; Rated Current: 20A; Rated Voltage: 110V; For AC 50Hz/60Hz; 1 Pole.

Size: 2.6"x 3.1"x 0.7"/ 67 x78 x 18mm (L*W*H). Fit for 35mm DIN rail.

Function: High quality AC mini circuit used for line overload, short circuit protection and infrequent conversion of lines. It can also work as on-off switch for load circuits.

FUNCTIONS: Used to protect 12V 24V 36V 48V 60V 100V DC circuit from overload and short circuit damage, and can also be used for control and isolation.

ARC EXTINGUISHING: This DC mini circuit breaker has a magnetic system to assist arc extinguishing.

CURVE B: Magnetic trip range 4-7 times rated current.

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.

【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.

Product: Miniature circuit breaker

Model: DZ47-63; Number of stages: single pole; For AC 50 Hz or 60 Hz；rated current: 6A; rated voltage: 230V.

Size: 3.1"x 0.7"x 2.8"/ 79 x18 x 71mm (L*W*H)

FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.

FAST TRIP: The electromagnetic trip system can trip immediately when the circuit is short-circuited to protect the safety of the circuit.

ARC EXTINGUISHING: DC arc extinguishing is more difficult than AC. This DC mini circuit breaker has a magnetic system to assist arc extinguishing.

Product Name: Manual Reset 125-250V AC 50V DC Push Button Switch Thermal Circuit Breaker.

Operating Voltage: 125/250V AC 50V DC; power rating: 20A (amp).Operating Temperature: -10oC (14oF) to 60oC (140oF) Interrupt Capacity:1,000 Amps

Working Principle: this switch can be reset after a disconnect over a period of time, then you can press the reset switch to use it again When load exceeds rated current, the switch reset button will automatically cut off the circuit, and thus play a role in protecting the line.

Ideal for Automotive / Industrial / Marine And Others Applications DIY

Compact design enables high density circuit protection configurations

Push-to-Reset Operation,with a waterproof button clear cap to protect from bad weather

☀PARAMETER - Model: DZ47-63; Rated Current: 6A; Rated Voltage: 230/400V. Fit for 35mm DIN rail.

☀MINI CIRCUIT BREAKER - Be used to protect a low-voltage electrical system from damage caused by excess current resulting from an overload or short circuit.

☀FAST TRIP FUNCTION - Ensure reliable operation of the load and prolong the life of circuit breaker. It can also work as on-off switch for load circuits.

Suitable for use with QO loadcenters, NQOD panelboards or interiors and Speed-D switchboard distribution panels

Measures 0.75 Inch x 2.91 Inch x 3.5 Inch

Has interrupt current rating of 10 Kilo-Amps

Product name:Miniature circuit breaker,Model: DZ47-63

Rated Current: 32A, Poles: 2 Poles, Rated Voltage: 400V

Size: 79 x18 x 71mm/3.1"x 0.7"x 2.8" (L*W*H)

Product Name: Thermal Circuit Breaker with Transparent Cap.

Power Rating: 50A (amp). 32 volts DC or 250 volts AC.

Built-in waterproof button cover for protection from the elements.

Product name: DC circuit breaker; Rated current:63A; Number of poles: 2 poles

Specifications: frame current: 63A; breaking capacity: 4.5kA; rated voltage: 1000V.

Release type: overload release; release mode: overcurrent release; release characteristics: instantaneous.

AC 90~125V Protect L And N Pole

Arc Extinguishing: DC arc extinguishing is more difficult than AC. AC circuit breaker has no magnet.

Widely used in warehouse, circuit test, switching circuit,Light switch etc.

Branch circuit breakers (can also be used for 24-hour circuit protection)

Compact design enables high density circuit protection configurations

Push-to-reset operation

20 amp DIN Rail Mounted AC Circuit Breaker

Superior 10 kA interrupt capacity

C Trip Curve with Visual trip indicator

【MULTIPLE USES】Used to protect cables and devices from overload or short circuit, and can be disconnected for maintenance and replacement of system devices.

【DOUBLE SECURITY】 Equipped with both the thermal and magnetic tripping mechanism for reliability and safety.

【DURABLE FOR USE】 After the circuit breakers is disconnected, only reset is needed and there will be no damage.

FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.

ARC EXTINGUISHING: This DC circuit breaker has a magnetic system to assist arc extinguishing.

QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.

60 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: 6-8.7MM Diameter Cable, 7-5 AWG Cable

Functions: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.（include solar energy equipment）

Rated Voltage: 12V-250V, include 12V, 110V, 250V. Size: 2.6"x 3.1"x 0.7"/ 67 x78 x 18mm (L*W*H). Fit for 35mm DIN rail.

Advantages: small size, light weight, reliable performance, strong breaking ability and sensitive action.

FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.

ARC EXTINGUISHING: This DC circuit breaker has a magnetic system to assist arc extinguishing.

QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.

UL1077 Recognized

Superior 10 kA interrupt capacity

Visual trip indicator

Function：Used to protect an electrical circuit from damage caused by excess current resulting from an overload or short circuit.

Features:Fast trip to ensure reliable operation of the load and prolong the life of electrical circuit breakers. It can also work as on-off switch for DC load circuits.

Flame-retardant Shell : This DC circuit breaker adopts high-performance flame-retardant housing, fireproofing and not easy to wear, long lifespan and high stability.

UL1077 Recognized

Superior 10 kA interrupt capacity

Visual trip indicator

UL1077 Recognized

Superior 10 kA interrupt capacity

Visual trip indicator

1 Pole Circuit Breakers rated at 277VAC and 115VDC

2 Pole Circuit Breakers rated at 277/480VAC and 220VDC

3 Pole Circuit Breakers rated at 480VAC and 220VDC

UL489 Certified: Meets National Electrical Code standards to serve as primary thermal overload and short circuit protection. Approved by Underwriters Laboratories for Branch Circuit protection in US and Canada. UL File: E517964

Standard Installation: Mini Circuit Breaker snaps on 35mm DIN Rails or may be directly mounted to control panels. Typically used in motor control circuits, HVAC / HVACR Equipment, input output module protection for programmable logical controllers (PLC) and distributed control systems (DCS), relays and instrumentation among other applications.

Specifications: 15 Amp 1 pole C Trip Curve MCB rated for 10kAIC 277V AC. Direct current rating is 60V DC. Westinghouse Model Number: WMBB1C15

GE Industrial Solutions THQB2120 2-Pole 20 Amp 120/240 Volt 10 Kaic 1 Inch Bolt-On Molded Case Circuit Breaker

Material: PC plastic.Silver alloy contacts, flame retardant material shell, color indicator.

Number of levels: bipolar;For AC 50 Hz or 60 Hz； rated current: 20A; rated voltage: 400V.rated power:4500w

Size: 3.1"x 1.4"x 2.9"/ 79 x35.5x 74mm (L*W*H)

Package Dimensions: 3.0 H x 4.0 L x 3.0 W (inches)

Visual trip indication, Easy to wire screw clamp connections

Package Weight: 1.0 pounds