Best Panel Miniature Circuit Breakers in 2026

Square D QO

100A Double Pole Circuit Breaker

Voltage: 240V, Bulk

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 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.

Two 20-Amp single pole

Twin 1/2-Inch frame

Plug in type QT, check wiring diagram on panel for acceptance

Miniature Circuit Breaker 120/240-Volt 30-Amp

Schneider Electric HOM230

Package Quantity: 5

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.

Product: Miniature AC circuit breaker

Model: DZ47-63; Number of stages: single pole; For AC 50 Hz or 60 Hz；rated current: 20A; 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.

PARAMETER: Model(C65H-DC), pole(2P), current(63A), voltage(DC250V), ICU(10kA).

FUNCTION: This is a great circuit breaker used to protect an electrical circuit from damage caused by excess current resulting from an overload or short circuit. And supports short circuit protection, overload protection.

DIN RAIL MOUNT: It can be mounted conveniently on DIN rail, DIN rail is not included.

Siemens space saving, plug in circuit breakers are intended for use in Siemens load centers and meter combinations that are rated to accept type QT breakers

For Canadian applications Non-CTL version, use Siemens catalog number with “NC” suffix. Check panel wiring diagram to confirm

QT dual beaker features two single pole, 15 Amp 120-Volts interchangeable

Product name: DC miniature circuit breaker

Specifications: Rated current: 20A; 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.

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

【Robust and durable】Made of high quality PC+ABS alloy material. Size:130*100*200mm | 5*3.9*7.8 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.

This is a great circuit breaker used to protect a low-voltage DC electrical system from damage caused by excess current resulting from an overload or short circuit

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

Modular structure, can be easily installed on the DIN standard guide rail in distribution box, bistable locking clip, the installation more convenient. Suitable for isolation in accordance with industrial standards: IEC EC60947-2/GB14048.2

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

【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.

PURPOSE: This is a great circuit breaker used to protect an electrical circuit from damage caused by excess current resulting from an overload or short circuit

FAST CLOSING: Fast closing to ensure reliable operation of the load and prolong the life of electrical circuit breakers

EASY AND RELIABLE TO USE: This DC Miniature Circuit Breaker is easy and reliable to use, which supports short circuit protection, overload protection

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.

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.

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: E517928

Standard Installation: Mini Circuit Breaker snaps on 35mm DIN Rails or may be directly mounted to control panels. Typically used in branch circuit applications including motor control circuits, HVAC / HVACR Equipment, and various OEM equipment.

Specifications: 40 Amp 2 pole C Trip Curve MCB rated for 10kAIC 480Y/277V AC. Direct current rating is 125V DC. Westinghouse Model Number: WMBB2C40 - 1

【Main Function】This Low-voltage dc circuit breaker is a great circuit breaker used to protect an electrical circuit from damage caused by excess current resulting from an overload or short circuit.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 circuitsdc din breaker

【Practicaltity】 Fast closing to ensure reliable operation of the load and prolong the life of electrical circuit breakers.DC breaker is more powerful than AC breaker to extinguish arcs. It means that our low-voltage breaker can be used at the same level voltage of DC and AC circuit system

【Easy To Use】DC Circuit Breaker, is easy and reliable to use, which supports short circuit protection, overload protection

Rated Current: 32 Amp, 2Poles, used in DC circuits of 500V and below.

Thermal-Magnetic Trip system quick trip，prolong the life of load and electrical circuit breakers.

The DC breaker have flame retardant material, easy installation, longer service life, suitable for 35mm DIN rail.

Replace glass cartridge fuse holders without panel redesign

Easy to install

6.35mm terminals are plated and punched for quick connect or solder connections

This is a great circuit breaker used to protect an electrical circuit from damage caused by excess current resulting from an overload or short circuit

Fast Closing to ensure reliable operation of the load and prolong the life of electrical circuit breakers

It is easy and reliable to use, which supports short circuit protection, overload protection

Thermal sensing circuit breaker operates until tripped and remains in the off position until reset

Easy-to-use push reset

Max Panel Thickness: ¼ inch

30 Amp 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

With MC Solar Connectors For Faster And Safer Installation, Plug-and-play

[Function]: This is a great circuit breaker used to protect an electrical circuit from damage caused by excess current resulting from an overload or short circuit

[DC Circuit Breaker]: Fast trip to ensure reliable operation of the load and prolong the life of electrical circuit breakers, this works as on-off switch for DC load circuits

[Provide Protection]: The DC miniature circuit breaker is easy and reliable to use, which supports short circuit protection, overload protection

Self trimming molded rubber bezel

Use with 285-Series or 185-Series Panel Mount Circuit Breakers

"Trip Free" design cannot be held "ON" during fault current condition