Interval Timers | McMaster-Carr

	Input Voltage Input Voltage

	Timing Adjustment Style Timing Adjustment Style


Knob	Push Button

Trippers	DIP Switches

Joystick	Potentiometer

Screw

	Switching Voltage Switching Voltage

	Timer Relay Function Timer Relay Function

Asymmetrical Repeat Cycle

Delayed Off

Delayed Start (Delay-on-
Make)

Delayed Switch-Off (Delay-on-
Break)

Delayed Switch-On with
Delayed Switch-Off

Fixed On/Off

Interval

Manual Switch Control

Repeat Cycle

Switch-On (Single-Shot)

Switch-On Asymmetrical
Repeat Cycle

	Switching Current Switching Current

	Maximum Overall Timing Maximum Overall Timing

	Number of Circuits Controlled Number of Circuits Controlled

	Number of Terminals Number of Terminals

	Mounting Location Mounting Location

	Timing Cycle Timing Cycle

24 Hour

7 Day

365 Day

	Industry Designation Industry Designation

	Set Time Set Time

	Specifications Met Specifications Met

CSA

CE Marked

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

2 Off (Normally Open) or 2 On
(Normally Closed)

1 Off (Normally Open) or 1 On
(Normally Closed)

2 Off (Normally Open) and 2
On (Normally Closed)

4 Off (Normally Open) or 4 On
(Normally Closed)

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Wire Connection Type Wire Connection Type


Screw Terminals	Quick- Disconnect Terminals

Wire Leads	Screw-Clamp Terminals

Solder

	Width Width

	Depth Depth

	Height Height

	Operation Type Operation Type

Mechanical

Solid State

Electrical

	Minimum Overall Timing Minimum Overall Timing

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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355 Products

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.

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.

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.

Panel-Mount 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 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.

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.

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.

High-Current Wall-Mount Timer Switches

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

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.

Panel-Mount Timer Switches

Install these switches in a panel cutout to 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.

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.

Low-Current Timer Relays

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.

Long-Life DIN-Rail Mount Multifunction Timer Relays

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

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.

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.

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.

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.

Time and Day Activated Switches

High-Current Time and Day Activated Switches

Outdoor High-Current Time and Day Activated Switches

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

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

Time and Day Activated Switches

Outdoor Time and Day Activated Switches

Panel-Mount Time and Day Activated Switches

Outlet-Box-Mount Time and Day Activated Switches

Surface/DIN-Rail Mount Timeand Day Activated Switches

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

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

Timer Switches

Wall-Mount Timer Switches

High-Current Wall-Mount Timer Switches

Time-Delay Wall-Mount Timer Switches

Panel-Mount Timer Switches

Power-Saving Panel-Mount Timer Switches

Timer Switches

High-Visibility Timer Switches

Low-Current Timer Relays

Ultra-Thin DIN-Rail Mount Multifunction Timer Relays

Dual-Channel DIN-Rail MountMultifunction Timer Relays

Long-Life DIN-Rail Mount Multifunction Timer Relays

DIN-Rail Mount Multifunction Timer Relays

Socket-Mount Multifunction Timer Relays

Compact Socket-Mount Multifunction Timer Relays

Versa-Mount Multifunction 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

Medium-Current Timer Relays

Medium-Current Timer Relays

Programmable Logic Controllers

Compact Programmable Logic Controllers

Easy-Program Logic Controllers

IO Link Controllers and Modules

IO Link Controllers and Modules

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

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

Surface/DIN-Rail Mount Time
and Day Activated Switches

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

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

Dual-Channel DIN-Rail Mount
Multifunction Timer Relays