Interval Relays | McMaster-Carr

Control multiple timing functions from your electrical cabinet—these timer relays mount to 35 mm DIN rail (also known as DIN 3 rail), which is the most commonly used size.

Dual-Channel DIN-Rail Mount
Multifunction Timer Relays

Control two steps of an electrical process from a single relay—with two fully independent channels and 30 different functions, these relays give you a wide range of possibilities.

Ultra-Thin DIN-Rail Mount
Multifunction Timer Relays

Maximize space inside your control cabinet.

Compact Socket-Mount
Multifunction Timer Relays

Smaller than standard multifunction timer relays, these relays save space in your control cabinet.

Socket-Mount
Multifunction Timer Relays

Plug these multifunction timer relays into relay sockets for fast installation and replacement.

Versa-Mount Multifunction
Timer Relays

Install relays in a panel cutout or plug into a relay socket.

Medium-Current Timer Relays

Also known as power relays, these relays are rated for 1 horsepower or 30 amps and are suitable for compressors, blowers, and heaters.

Programmable Logic Controllers

Compact Programmable
Logic Controllers

Smaller than other PLCs, these controllers save space in your control cabinet. They combine the functionality of a relay, timer relay, and switch in one unit, so you can program simple automation jobs.

Easy-Program Logic Controllers

Design and operate up to six simultaneous programs without symbols or technical language—the on-screen instructions use simple English.

Terms and Conditions and Privacy Policy

About Timer Relays

Low-Current Timer Relays

Socket-Mount Timer Relays

Wide-Range Socket-MountTimer Relays

Long-Life Surface-MountTimer Relays

Surface-Mount Timer Relays

DIN-Rail Mount Timer Relays

Versa-Mount Timer Relays

Long-Life DIN-Rail MountMultifunction Timer Relays

DIN-Rail MountMultifunction Timer Relays

Dual-Channel DIN-Rail MountMultifunction Timer Relays

Ultra-Thin DIN-Rail MountMultifunction Timer Relays

Compact Socket-MountMultifunction Timer Relays

Socket-MountMultifunction Timer Relays

Versa-Mount MultifunctionTimer Relays

Medium-Current Timer Relays

Medium-Current Timer Relays

Programmable Logic Controllers

Compact ProgrammableLogic Controllers

Easy-Program Logic Controllers

Wide-Range Socket-Mount
Timer Relays

Long-Life Surface-Mount
Timer Relays

Long-Life DIN-Rail Mount
Multifunction Timer Relays

DIN-Rail Mount
Multifunction Timer Relays

Dual-Channel DIN-Rail Mount
Multifunction Timer Relays

Ultra-Thin DIN-Rail Mount
Multifunction Timer Relays

Compact Socket-Mount
Multifunction Timer Relays

Socket-Mount
Multifunction Timer Relays

Versa-Mount Multifunction
Timer Relays

Compact Programmable
Logic Controllers