Circuit Protectors | McMaster-Carr

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1,746 Products

Electrical

Circuit Breakers

Circuit Breakers

Reusable way to interrupt circuits when they overload or short

Fuses

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

Circuit Interrupters

Circuit Interrupters

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

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 Boxes

Circuit Breaker Boxes

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

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

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

Outlet Strips

Plug in multiple devices to power them from a single outlet

Motor Starter Overload Protectors

Motor Starter Overload Protectors

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

Electrical Cord Circuit Interrupter Converters

Electrical Cord Circuit Interrupter Converters

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

Current Relays

Prevent AC current overload in equipment such as motors and heaters

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