Interval Relays | McMaster-Carr

	Input Voltage Input 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

	Maximum Overall Timing Maximum Overall Timing

	Timing Adjustment Style Timing Adjustment Style


Potentiometer	Knob

DIP Switches	Joystick

Screw	Push Button

	Switching Voltage Switching Voltage

	Number of Terminals Number of Terminals

	Mounting Location Mounting Location

	Switching Current Switching Current

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

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

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

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

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

	Number of Circuits Controlled Number of Circuits Controlled

	Industry Designation Industry Designation

	Operation Type Operation Type

Mechanical

Solid State

Electrical

	Minimum Overall Timing Minimum Overall Timing

	Application Application

Power

Data

Signal

	Width Width

	Depth Depth

	Number of Timing Ranges Number of Timing Ranges

	Height Height

	Wire Connection Type Wire Connection Type

	Quick- Disconnect Terminals
	Screw Terminals
	Screw-Clamp Terminals

	Specifications Met Specifications Met

CE Marked

CSA

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

DFARS Specialty Metals
COTS-Exempt

	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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249 Products

About 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.

Wide-Range Socket-Mount Timer Relays

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

Socket-Mount Timer Relays

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

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.

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.

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.

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

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.

About Timer Relays

Timer Relays

Long-Life Surface-Mount Timer Relays

Surface-Mount Timer Relays

Wide-Range Socket-Mount Timer Relays

Socket-Mount Timer Relays

DIN-Rail Mount Timer Relays

Versa-Mount Timer Relays

Dual-Channel DIN-Rail MountMultifunction Timer Relays

DIN-Rail Mount Multifunction Timer Relays

Ultra-Thin DIN-Rail Mount Multifunction Timer Relays

Long-Life 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

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