Timer-Actuated Switches | McMaster-Carr

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Input Voltage

Switching Voltage

Timing Adjustment Style

Timer Relay Function

Asymmetrical Repeat Cycle

Delayed Off

Delayed Pulse

Delayed Start (Delay on Make)

Delayed Switch Off (Delay on Break)

Delayed Switch-On with Delayed Switch-Off

Fixed On/Off

Interval

Interval Switch-Off

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Repeat Cycle

Star-to-Delta

Start-Off Asymmetrical Repeat Cycle

Start-Off Repeat Cycle

Switching Current

Set Time

Number of Circuits Controlled

Number of Terminals

Mounting Location

DIN Rail

Handheld

Panel

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Overall Timing

0.05 sec. to 1,800 sec.

0.05 sec. to 999 min.

Wire Connection

Switch Designation

Certification

C-UL Recognized Component

UL Listed

UL Recognized Component

Switch Starting Position

Relay Type

REACH

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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Compliant

Compliant with Exemptions

Timing Cycle

Depth

Height

Operation Type

Width

Number of Timing Ranges

Operating Voltage

342 Products

Timer Switches

Power-Saving Panel-Mount Timer Switches

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

Panel-Mount Timer Switches

Install these switches in a panel cutout to automatically turn electrical equipment on or off after a set interval.

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.

Timer Switches

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

High-Visibility Timer Switches

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

Time and Day Activated Switches

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

Install these switches in a panel cutout.

Outlet-Box-Mount Time and Day Activated Switches

Switches fit single device (1 gang) outlet boxes.

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.

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.

Smart Time and Day Activated Switches

Use your smart phone to turn equipment on and off at a set time and day.

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.

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.

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.

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.

Timer Relays

Turn machinery, such as paint and conveyor lines, on and off after a set period of time.

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.

Solid State Surface-Mount Timer Relays

Attach these relays to a flat surface using the mounting hole. They have no moving parts, so compared to mechanical switches, they require less maintenance, last longer, and are quieter.

Solid State Versa-Mount Multifunction Timer Relays

Install these relays in a panel cutout or plug them into a relay socket. Unlike mechanical relays, these solid state relays have no moving parts, so they require less maintenance and last longer, are quieter, and switch faster.

Solid State Versa-Mount Timer Relays

Mount these timer relays in a panel cutout or plug them into a relay socket for quick installation. Capable of fast switching, they are solid state and have no moving parts, so they require less maintenance, last longer, and are quieter than mechanical relays.

Solid State DIN-Rail Mount
Multifunction Interface Timer Relays

Considered solid state because they don’t have any moving parts, these timer relays last longer, switch faster, and are quieter than mechanical relays. They interface between your controller and components to isolate input and output circuits, preventing damage to your components from voltage spikes, amplifying the relay's signal, and reducing signal interference. They have multiple timing functions, so you don’t need to swap out your relay if you want to change their function.

Smart DIN-Rail Mount Multifunction Timer Relays

Whether installed in an electrical cabinet or hard-to-reach area, these timer relays are controlled remotely from your smartphone. They connect to your phone via a free downloadable app so you can set time delay ranges, adjust settings, and save programs.

Solid State DIN-Rail Mount Timer Relays

Mount these timer relays directly to 35 mm DIN rail (also known as DIN 3 rail) for fast installation. Unlike mechanical relays, they have no moving parts, so they require less maintenance and last longer, are quieter, and switch faster.

Solid State DIN-Rail Mount
Multifunction Timer Relays

For fast installation, mount these relays directly to 35 mm DIN rail (also known as DIN 3 rail). With no moving parts, these solid state relays last longer and require less maintenance, are quieter, and switch faster than mechanical relays.

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.

High-Starting-Current DIN-Rail Mount Timer Relays

Reduce voltage fluctuations and stress on shafts and bearings when starting up three-phase motors. These timer relays start with motor contacts in a star configuration, then switch to a delta configuration after a set delay.

Multifunction Timer Relays

Get a variety of timing functions in a single relay.

DIN-Rail Mount Multifunction Interface Timer Relays

Protect components from voltage spikes while amplifying the relay’s signal and reducing interference for reliable transmission—these relays interface between your controller and system components to isolate the input and output circuits. They have multiple timing functions, so you don’t need to swap out your relay if you want to change their function.

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.

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.

Hand-Held IO Link Programmers

Configure any of your IO Link devices—from sensors to switches—without a PC, outlet, or separate software.

Circuit Board Relays

Smaller than relays with electrical wiring, these relays fit in compact devices. Mount them through holes on circuit boards with their solder pin terminals.

Timer Switches

Power-Saving Panel-Mount Timer Switches

Panel-Mount Timer Switches

Wall-Mount Timer Switches

Time-Delay Wall-Mount Timer Switches

High-Current Wall-Mount Timer Switches

Timer Switches

High-Visibility Timer Switches

Time and Day Activated Switches

Panel-Mount Set-to-the-MinuteTime and Day Activated Switches

Outlet-Box-Mount Time and Day Activated Switches

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

Time and Day Activated Switches

Outdoor Time and Day Activated Switches

Smart Time and Day Activated Switches

Surface/DIN-Rail Mount Timeand Day Activated Switches

Panel-Mount Time and Day Activated Switches

High-Current Time and Day Activated Switches

Outdoor High-Current Timeand Day Activated Switches

Outdoor Set-to-the-Minute High-CurrentTime and Day Activated Switches

Set-to-the-Minute High-CurrentTime and Day Activated Switches

Timer Relays

Timer Relays

DIN-Rail Mount Multifunction Timer Relays

Solid State Surface-Mount Timer Relays

Solid State Versa-Mount Multifunction Timer Relays

Solid State Versa-Mount Timer Relays

Solid State DIN-Rail MountMultifunction Interface Timer Relays

Smart DIN-Rail Mount Multifunction Timer Relays

Solid State DIN-Rail Mount Timer Relays

Solid State DIN-Rail MountMultifunction Timer Relays

Dual-Channel DIN-Rail MountMultifunction Timer Relays

High-Starting-Current DIN-Rail Mount Timer Relays

Multifunction Timer Relays

DIN-Rail Mount Multifunction Interface Timer Relays

Programmable Logic Controllers

Compact Programmable Logic Controllers

Easy-Program Logic Controllers

Expansion Modules forProgrammable Logic Controllers

Hand-Held IO Link Programmers

Hand-Held IO Link Programmers

Circuit Board Relays

Circuit Board Relays

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

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

Surface/DIN-Rail Mount Time
and Day Activated Switches

Outdoor High-Current Time
and Day Activated Switches

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

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

Solid State DIN-Rail Mount
Multifunction Interface Timer Relays

Solid State DIN-Rail Mount
Multifunction Timer Relays

Dual-Channel DIN-Rail Mount
Multifunction Timer Relays

Expansion Modules for
Programmable Logic Controllers