Circuit Breakers | McMaster-Carr

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Breakthrough Current @ Voltage

5,000 amp @ 120V AC

10,000 amp @ 120V AC

22,000 amp @ 120V AC

65,000 amp @ 120V AC

5,000 amp @ 208V AC

1,000 amp @ 240V AC

10,000 amp @ 240V AC

22,000 amp @ 240V AC

65,000 amp @ 240V AC

85,000 amp @ 240V AC

200 amp @ 250V AC

1,000 amp @ 250V AC

1,500 amp @ 250V AC

2,000 amp @ 250V AC

5,000 amp @ 277V AC

10,000 amp @ 277V AC

14,000 amp @ 277V AC

5,000 amp @ 480V AC

Certification

C-UL Recognized Component

UL Recognized Component

Circuit Breaker Interruption Type

Hydraulic-Magnetic

Width

Electrical Connection

Reset Type

Specifications Met

Fed. Spec. W-C-596

Number of Circuits Controlled

Height

Number of Spaces

Enclosure Rating

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

Environment

High Temperature

How can we improve?

681 Products

Circuit Breakers

DIN-Rail Mount Equipment Circuit Breakers

DIN-Rail Mount Equipment Circuit Breakers

Protect a piece of equipment downstream from a branch circuit breaker

Square D Load-Center Circuit Breakers

Square D Load-Center Circuit Breakers

Match to Square D breaker boxes or panel boards of the same manufacturer series

DIN-Rail Mount Branch Circuit Breakers

DIN-Rail Mount Branch Circuit Breakers

Safeguard equipment and wiring in an area of your facility

Siemens Load-Center Circuit Breakers

Siemens Load-Center Circuit Breakers

Use with Siemens EQ series breaker boxes

High-Power Circuit Breakers

High-Power Circuit Breakers

Protect an area of a facility that has high-powered equipment

Harsh-Environment Circuit Breakers

Harsh-Environment Circuit Breakers

Resist vibration and corrosion in harsh environments

Panel-Mount Equipment Circuit Breakers

Panel-Mount Equipment Circuit Breakers

Mount through panels to protect a single piece of equipment

Cutler-Hammer Load-Center Circuit Breakers

Cutler-Hammer Load-Center Circuit Breakers

Install into Cutler-Hammer CH series breaker boxes

High-Temperature Panel-Mount Circuit Breakers

High-Temperature Panel-Mount Circuit Breakers

The hydraulic-magnetic trip mechanism is not affected by temperature changes

Blade-Style Circuit Breakers

Blade-Style Circuit Breakers

Protect low-voltage automotive and electronic applications

DIN-Rail Mount Electronic Circuit Breakers

DIN-Rail Mount Electronic Circuit Breakers

Continuously monitor current and trip at a precise value

Space-Saving Panel-Mount Branch Circuit Breakers

Space-Saving Panel-Mount Branch Circuit Breakers

Small enough to fit in tight spaces, these circuit breakers mount through panels

DIN-Rail Mount Ground Fault Circuit Protectors

DIN-Rail Mount Ground Fault Circuit Protectors

Minimize the risk of electric shock to workers and equipment if there is a current leak

Plug-Base Circuit Breakers

Plug-Base Circuit Breakers

Replace any Edison-base fuse with these resettable circuit breakers

Other Products

Circuit Interrupters

Circuit Interrupters

Ground fault protection stops injuries from electric shocks; hardwire to equipment to break circuits

Circuit Breaker Boxes

Circuit Breaker Boxes

Hold a series of circuit breakers in line; also known as load centers

Outlet Strips

Plug in multiple devices to power them from a single outlet

Circuit Breaker Box Filler Plates

Circuit Breaker Box Filler Plates

Conceal live electrical components in circuit breaker boxes to prevent injury and damage

Power Connectors

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

Relays

Electrically open and close circuits to control power to lights, motors, and other equipment

Extension Cord Circuit Interrupter Converters

Extension Cord Circuit Interrupter Converters

Hardwire to extension cords to protect against electric shock in wet areas

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

Extension Cord Reels

Extension Cord Reels

Keep extension cords easy to access without creating a tripping hazard

Battery Chargers

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

Power Cords

Connect equipment and devices to a power source

Extension Cords

Extension Cords

Extend the reach of power from an outlet

Temporary Power Distribution Boxes

Temporary Power Distribution Boxes

Send power to equipment from generators or other sources when electricity is not available

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)