Best Plastic Miniature Circuit Breakers in 2026

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.

[GREAT QUALITY]: Made of high quality plastic(ABS), Waterproof Rating: IP65; Qualification£ºCE¡ROHS

[Designed]: This distribution box is designed for 5 ways circuit breaker,durable and sturdy.

[TRANSPARENT COVER]: The blue cover is transparent , you can check the condition easily without open the box.

Product: AC Miniature circuit breaker; Green indicator light: OFF disconnected；Red indicator light: ON closed

Model: DZ47-63; Number of stages: single pole; For AC 50 Hz or 60 Hz; rated current: 16A; rated voltage: 230V.

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

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.

Model: DZ47-63; Rated Current: 16A; 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.

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.

✅ Product Name: Thermal Circuit Breaker, Housing Material: Black Plastic.

✅ Terminal Type: Male; Power Rating: 40A (amp).

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

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.

☀PARAMETER - Model: DZ47-63; Rated Current: 16A; 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.

【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.

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

Product name: DC miniature circuit breaker

Specifications: Rated current: 63A; Rated voltage is 250v; Breaking capacity is 6KA; Number of levels: 1 pole.

Used for line overload and short circuit protection; simple and convenient to use.

--RESET SWITCH DESIGN: This Thermal Circuit Breaker can be reset after a disconnect over a period of time, then you can press the reset switch to use it again.

--CIRCUIT PROTECTION: Compact design enables high density circuit protection configuration. Made of durable plastic, thermal overload protector is high quality and long service life.

--EXTRA PROTECTION: When the load exceeds the rated current, this switch reset button will automatically cut off the circuit, and thus Thermal Circuit Breaker plays a role in protecting the line.

Product Introduce : Miniature circuit breaker; model no. :DZ47-63; material : plastic; pole number: 2P; rated voltage: 400 (V); rated current: 25A, 40A, 50A, 63A (optional)

Product Performance : The miniature circuit breaker is of reliable performance, with high breaking capacity and sensitive action, of compact size and light weight

Product Features : With terminal quenching treatment, environmental protection electroplating the miniature circuit breaker is of good torsion tolerance and anti-rust effect

GREAT QUALITY: Made of high quality plastic, this distribution box is durable and sturdy.

MULTIFUNCTIONAL: This distribution box is designed for 3-4 ways circuit breaker, can be widely used.

TRANSPARENT COVER: The blue cover is transparent , you can check the condition easily without open the box.

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.

FEATURES: Operating Voltage: AC 125/250V; Power Rating: 15A (amp)

EXTRA PROTECTION: When load exceeds rated current, the switch reset button will automatically cut off the circuit, and thus play a role in protecting the line.

RESET SWITCH DESIGN: This switch can be reset after a disconnect over a period of time, then you can press the reset switch to use it again.

【Robust and durable】Made of high quality PC+ABS alloy material. Size:165x100x200 MM | 6.5x3.9x7.8 IN (L*W*H)

【Waterproof IP66】It can withstand strong wave impact or strong water spray, and completely prevent dust from entering. Greatly improves the safety of the breaker. Impact resistance up to IK08.

【Easy Installation】The circuit breaker box can be easily installed and very convenient to use, just need a few steps to mount it on your wall.

FEATURES: Operating voltage: 125/250V AC 32V DC; power rating: 7A (amp); switch type: push-button reset

EXTRA PROTECTION: When load exceeds rated current, the switch reset button will automatically cut off the circuit, and thus play a role in protecting the line

RESET SWITCH DESIGN: This switch can be reset after a disconnect over a period of time, then you can press the reset switch to use it again

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 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

Operating voltage: 125/250V AC 32V DC; power rating: 20A (amp)

Compact, single pole, push-to-reset thermal circuit breakers

When load exceeds rated current, the switch reset button will automatically cut off the circuit, and thus play a role in protecting the line

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.

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.

FEATURES: Operating Voltage: AC 125/250V 32VDC ; Power Rating: 3A (amp)

EXTRA PROTECTION: When load exceeds rated current, the switch reset button will automatically cut off the circuit, and thus play a role in protecting the line.

RESET SWITCH DESIGN: This switch can be reset after a disconnect over a period of time, then you can press the reset switch to use it again.

UL1077 Recognized

Superior 10 kA interrupt capacity

Visual trip indicator

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

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: 40A; rated voltage: 400V.rated power:4500w

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

Rated Current: 25A; Poles: 1 Pole

Rated Voltage: AC 230V/400V 50HZ

Overall Size (Approx): 78.5 x 75 x 17.5mm/3.1" x 3" x 0.7" (L*W*T )