Surface Relays | McMaster-Carr

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590 Products

Electrical

Relays

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

405 products

Relay Sockets

Quickly mount relays to DIN rail or flat surfaces

23 products

Timer Relays

Turn machinery on or off after receiving an electrical signal that starts the timer

91 products

Motor Voltage Monitors

Protect electric motors by cutting power when faults occur

1 product

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

2 products

PLCs

Program complex automation jobs by combining the functionality of a relay, timer relay, and switch

2 products

PLC Input and Output Modules

Connect switches, transmitters, and actuators to your PLC for complex automation jobs

2 products

Motor Starters

Turn motors on and off and protect them from current overloads

5 products