Single-Phase Relays | McMaster-Carr

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405 Products

Relays

DIN-Rail Mount Solid State Relays

Mount on 35 mm DIN rail and are faster, longer lasting, and quieter than mechanical relays

15 products

DIN-Rail Mount Touch-Safe Screw Terminal Relays

Recessed terminals prevent fingers and objects from touching live circuits

77 products

Other Products

Safety Relays

Monitor circuits and force machines to a safe stop if the relay detects a fault

25 products

Motor Starters

Turn motors on and off and protect them from current overloads

210 products

Infrequent-Cycle Relays

Use with equipment that cycles on and off, such as HVAC systems

57 products

Lighting Relays

Control lighting circuits and switch lighting systems on or off

13 products

Proportional-Control Relays

Gradually adjust output instead of turning on or off

8 products

Motor Starter Overload Protectors

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

2 products

Transfer Switches

Switch to backup power during an outage

7 products

Motor Starter Switches

Combine with a thermal overload element to build a starter that can handle high-current-rated motors

6 products