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.

Ultra-Thin DIN-Rail Mount
Multifunction Timer Relays

Maximize space inside your control cabinet.

Long-Life DIN-Rail Mount
Multifunction Timer Relays

With no moving parts, these solid state relays have an extended service life.

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.

Socket-Mount
Multifunction Timer Relays

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

Compact Socket-Mount
Multifunction Timer Relays

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

Versa-Mount Multifunction
Timer Relays

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

Long-Life Surface-Mount
Timer Relays

With no moving parts, these solid state relays have an extended service life.

Surface-Mount Timer Relays

Use the mounting hole to attach these relays to a flat surface.

Socket-Mount Timer Relays

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

Wide-Range Socket-Mount
Timer Relays

Postpone starts longer and set wider intervals than with most timer relays.

DIN-Rail Mount Timer Relays

Mount these relays directly to DIN rail.

Versa-Mount Timer Relays

Install these 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.

Time and Day Activated Switches

High-Current Time and
Day Activated Switches

Control equipment with high currents, such as landscape lighting, pumps, and heaters.

Outdoor High-Current Time
and Day Activated Switches

Rated NEMA 3R, these rain-tight switches protect against falling liquids and light splashing.

Outlet-Box-Mount Time and
Day Activated Switches

Switches fit single device (1 gang) outlet boxes.

Time and Day Activated Switches

Program these switches to turn a device on and off at a set time and day.

Outdoor Time and Day
Activated Switches

Designed to work with landscape and security lighting.

Surface/DIN-Rail Mount Time
and Day Activated Switches

Mount these switches to a flat surface or attach to DIN rail.

Panel-Mount Time and
Day Activated Switches

Install these switches in a panel cutout.

Set-to-the-Minute High-Current
Time and Day Activated Switches

For precise control of high-current equipment such as landscape lighting, pumps, and heaters, these switches schedule on/off times to the exact minute.

Outdoor Set-to-the-Minute
High-Current Time and
Day Activated Switches

Rated NEMA 3R, these rain-tight switches protect against falling liquids and light splashing.

Surface/DIN-Rail Mount
Set-to-the-Minute Time
and Day Activated Switches

Mount these switches to a flat surface or attach to DIN rail.

Panel-Mount Set-to-the-Minute
Time and Day Activated Switches

Install these switches in a panel cutout.

Cycle Timer Switches

Repeat a cycle of on/off intervals every hour.

Timer Switches

Wall-Mount Timer Switches

Use these switches in place of standard wall switches to automatically turn electrical equipment on or off after a set interval of time.

Time-Delay Wall-Mount
Timer Switches

Control two devices and delay the shut off of one device by up to one hour. These switches are often used with lights and fans for ventilation.

High-Current Wall-Mount
Timer Switches

Control equipment with high currents such as air conditioners, heaters, and ventilation fans.

Panel-Mount Timer Switches

Timer Switches

Automatically turn electrical equipment on or off after a set interval.

Power-Saving Panel-Mount
Timer Switches

Push and release the button to activate—no electricity required.

High-Visibility Timer Switches

The large face makes these switches easy to read from a distance.

Smartphone-Programmable Time
and Day Activated Switches

Remotely program these switches via bluetooth signal with a smartphone, tablet, or PC.

Programmable Logic Controllers

Also known as PLCs, these controllers combine the functionality of a relay, timer relay, and switch in one unit, so you can program complex 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.

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Low-Current Timer Relays

DIN-Rail MountMultifunction Timer Relays

Ultra-Thin DIN-Rail MountMultifunction Timer Relays

Long-Life DIN-Rail MountMultifunction Timer Relays

Dual-Channel DIN-Rail MountMultifunction Timer Relays

Socket-MountMultifunction Timer Relays

Compact Socket-MountMultifunction Timer Relays

Versa-Mount MultifunctionTimer Relays

Long-Life Surface-MountTimer Relays

Surface-Mount Timer Relays

Socket-Mount Timer Relays

Wide-Range Socket-MountTimer Relays

DIN-Rail Mount Timer Relays