Time-Delay Controls | McMaster-Carr

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348 Products

Low-Current Timer Relays

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.

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.

Versa-Mount Timer Relays

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

DIN-Rail Mount Timer Relays

Mount these relays directly to DIN rail.

Long-Life DIN-Rail Mount Multifunction Timer Relays

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

Ultra-Thin DIN-Rail Mount Multifunction Timer Relays

Maximize space inside your control cabinet.

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.

DIN-Rail Mount Multifunction Timer Relays

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.

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.

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

Input/Output Modules for
Programmable Logic Controllers

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

Communication Modules for
Programmable Logic Controllers

Connect and communicate with multiple automation devices simultaneously, such as HMIs, motor speed controls, supervisory PCs, and additional PLC racks. These modules allow several systems to talk to one another—within your facility and beyond—letting you expand your automated processes over numerous interconnected networks.

Power Supplies for Programmable Logic Controllers

Designed for PLCs, these power supplies attach to your processor to bring your automated system to life. Once connected, they take in the voltage from your facility, convert and regulate it, and send out stabilized power to the rest of your equipment.

Expansion Modules for Programmable Logic Controllers

No need to program multiple PLCs—these modules expand your automated system, keeping everything conjoined and configured on one processor. Use them when you’re out of space on your DIN rail or need additional input/output functions.

End Plates for Programmable Logic Controllers

Used with PLCs, these end plates close off your system’s processes—telling the processor that there are no more inputs or outputs to communicate with. They also protect your modules’ circuitry from debris.

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.

IO Link Controllers and Modules

Create a system of sensors and actuators that you can remotely update, view measurements from, and receive error messages in real time.

Low-Current Timer Relays

Socket-Mount Timer Relays

Wide-Range Socket-Mount Timer Relays

Long-Life Surface-Mount Timer Relays

Surface-Mount Timer Relays

Versa-Mount Timer Relays

DIN-Rail Mount Timer Relays

Long-Life DIN-Rail Mount Multifunction Timer Relays

Ultra-Thin DIN-Rail Mount Multifunction Timer Relays

Dual-Channel DIN-Rail MountMultifunction Timer Relays

DIN-Rail Mount Multifunction Timer Relays

Socket-Mount Multifunction Timer Relays

Compact Socket-Mount Multifunction Timer Relays

Versa-Mount Multifunction Timer Relays

Medium-Current Timer Relays

Medium-Current Timer Relays

Programmable Logic Controllers

Input/Output Modules forProgrammable Logic Controllers

Communication Modules forProgrammable Logic Controllers

Power Supplies for Programmable Logic Controllers

Expansion Modules for Programmable Logic Controllers

End Plates for Programmable Logic Controllers

Compact Programmable Logic Controllers

Easy-Program Logic Controllers

IO Link Controllers and Modules

IO Link Controllers and Modules

Dual-Channel DIN-Rail Mount
Multifunction Timer Relays

Input/Output Modules for
Programmable Logic Controllers

Communication Modules for
Programmable Logic Controllers