Thermal Circuit Breakers | McMaster-Carr

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5,000 amp @ 120V AC

10,000 amp @ 120V AC

1,000 amp @ 240V AC

10,000 amp @ 240V AC

65,000 amp @ 240V AC

85,000 amp @ 240V AC

200 amp @ 250V AC

1,000 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

10,000 amp @ 480V AC

14,000 amp @ 480V AC

25,000 amp @ 480V AC

35,000 amp @ 480V AC

14,000 amp @ 600V AC

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411 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

Blade-Style Circuit Breakers

Blade-Style Circuit Breakers

Protect low-voltage automotive and electronic applications

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

Plug-Base Circuit Breakers

Plug-Base Circuit Breakers

Replace any Edison-base fuse with these resettable circuit breakers

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