Circuit Protectors | McMaster-Carr

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1/8 amp to 30 amp

1/4 amp to 30 amp

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Manufacturer Equivalent Fuse

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Breakthrough Current @ Voltage

300 amp @ 32V AC

5,000 amp @ 120V AC

10,000 amp @ 120V AC

22,000 amp @ 120V AC

65,000 amp @ 120V AC

150 amp @ 125V AC

200 amp @ 125V AC

400 amp @ 125V AC

500 amp @ 125V AC

1,000 amp @ 125V AC

2,500 amp @ 125V AC

10,000 amp @ 125V AC

100,000 amp @ 150V AC

5,000 amp @ 208V AC

1,000 amp @ 240V AC

Fuse UL Class

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C-UL Recognized Component

UL Recognized Component

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DFARS Specialty Metals

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Blown Fuse Indicator

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Push-Pull Button

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Number of Elements

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Circuit Breaker Interruption Type

Hydraulic-Magnetic

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1,767 Products

Electrical

Circuit Breakers

Circuit Breakers

Reusable way to interrupt circuits when they overload or short

Circuit Interrupters

Circuit Interrupters

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

Fuses

Stop the flow of electricity when there's a circuit overload or short; replace after each break

Surge Suppressors

Surge Suppressors

Stop electrical surges from damaging equipment

Varistors

Protect sensors, programmable logic controllers, and other small components from electrical surges

Circuit Breaker Box Filler Plates

Circuit Breaker Box Filler Plates

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

Diodes

Route current in one direction and block it in the other to protect sensitive electronics

Circuit Breaker Boxes

Circuit Breaker Boxes

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

Current Relays

Prevent AC current overload in equipment such as motors and heaters

Relays

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

Motor Starter Overload Protectors

Motor Starter Overload Protectors

Upgrade your motor starter protector to use less energy and emit less heat

Disconnect Switches

Disconnect Switches

Make sure equipment stays turned off during inspection and maintenance

Electrical Cord Circuit Interrupter Converters

Electrical Cord Circuit Interrupter Converters

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

Outlet Strips

Plug in multiple devices to power them from a single outlet

Battery Surge Protectors/Charge Monitors

Battery Surge Protectors/Charge Monitors

Display the charge level of a large-cell battery while protecting it from power surges

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