Control Relays | McMaster-Carr

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	Input Voltage Input Voltage

3-30V AC

10-30V AC

12-24V AC

12-240V AC

20-275V AC

20-280V AC

24-240V AC

70-140V AC

85-280V AC

90-140V AC

90-280V AC

100-120V AC

100-240V AC

110-240V AC

190-480V AC

200-230V AC

200-480V AC

475-600V AC

3-24V DC

3-30V DC

3-32V DC

3.5-32V DC

4-28V DC

4-32V DC

5-24V DC

5-32V DC

9-110V DC

10-30V DC

12-24V DC

12-240V DC

22-48V DC

24-190V DC

24-240V DC

100-125V DC

110-240V DC

	Switching Current Switching Current

	Switching Voltage Switching Voltage

	Industry Designation Industry Designation

	Mounting Location Mounting Location

Printed
Circuit Board

	Number of Circuits Controlled Number of Circuits Controlled

	Number of Terminals Number of Terminals

	Relay Type Relay Type


Standard	Signal

Timer	Holder

	Power Power

1/3 hp @ 115 V AC

3/4 hp @ 115 V AC

1 hp @ 115 V AC

1 1/2 hp @ 115 V AC

2 hp @ 115 V AC

3 hp @ 115 V AC

5 hp @ 115 V AC

7 1/2 hp @ 115 V AC

1/6 hp @ 120 V AC

1/4 hp @ 120 V AC

1/3 hp @ 120 V AC

1/2 hp @ 120 V AC

3/4 hp @ 120 V AC

1 hp @ 120 V AC

1 1/2 hp @ 120 V AC

2 hp @ 120 V AC

3 hp @ 120 V AC

1 hp @ 230 V AC

2 hp @ 230 V AC

3 hp @ 230 V AC

5 hp @ 230 V AC

7 1/2 hp @ 230 V AC

10 hp @ 230 V AC

15 hp @ 230 V AC

20 hp @ 230 V AC

30 hp @ 230 V AC

0.33 hp @ 240 V AC

1/3 hp @ 240 V AC

1/2 hp @ 240 V AC

1 1/2 hp @ 240 V AC

2 hp @ 240 V AC

3 hp @ 240 V AC

5 hp @ 240 V AC

7 1/2 hp @ 240 V AC

10 hp @ 240 V AC

15 hp @ 240 V AC

2 hp @ 277 V AC

3 hp @ 277 V AC

5 hp @ 460 V AC

10 hp @ 460 V AC

15 hp @ 460 V AC

20 hp @ 460 V AC

30 hp @ 460 V AC

40 hp @ 460 V AC

50 hp @ 460 V AC

5 hp @ 480 V AC

7 1/2 hp @ 480 V AC

10 hp @ 480 V AC

15 hp @ 480 V AC

30 hp @ 480 V AC

5 hp @ 575 V AC

10 hp @ 575 V AC

15 hp @ 575 V AC

20 hp @ 575 V AC

30 hp @ 575 V AC

40 hp @ 575 V AC

50 hp @ 575 V AC

5 hp @ 600 V AC

7 1/2 hp @ 600 V AC

10 hp @ 600 V AC

15 hp @ 600 V AC

20 hp @ 600 V AC

30 hp @ 600 V AC

40 hp @ 600 V AC

	Operation Type Operation Type

	Socket Connection Type Socket Connection Type


Quick- Disconnect Terminals	Circular Pin Terminals

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

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

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

1 On (Normally Closed)

2 Off (Normally Open)

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

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

3 Off (Normally Open)

3 Off (Normally Open) and 1
On (Normally Closed)

3 Off (Normally Open) or 3
On (Normally Closed)

4 Off (Normally Open)

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

	Timer Relay Function Timer Relay Function

Asymmetrical Repeat Cycle

Delayed Start (Delay-on-
Make)

Delayed Switch-Off (Delay-
on-Break)

Delayed Switch-On with
Delayed Switch-Off

Manual Switch Control

Switch-On (Single-Shot)

Switch-On Asymmetrical
Repeat Cycle

	Depth Depth

	Width Width

	Application Application

	Wire Connection Type Wire Connection Type

Screw Terminals

Quick-Disconnect Terminals

Screw Clamp Terminals

Solder Pin Terminals

	Mechanical Life Cycles Mechanical Life Cycles

100,000
250,000
300,000
500,000
1,000,000
2,000,000
4,000,000
5,000,000
10,000,000
20,000,000
50,000,000
100,000,000

	Electrical Phase Electrical Phase

	Control Current Control Current

	Specifications Met Specifications Met

UL

CSA

CE

	Maximum Overall Timing Maximum Overall Timing

	Timing Adjustment Style Timing Adjustment Style


Knob	Screw

DIP Switches	Potentiometer

Joystick	Push Button

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763 Products

Relays

Low-Current Relays

Low-Current Relays

Rated up to 15 amps.

High-Current Relays

High-Current Relays

Also known as contactors, these relays are rated for motors with Â½-50 horsepower and are used with large motors and lighting systems.

Medium-Current Relays

Medium-Current Relays

These relays are rated for motors with 1-3 horsepower or 15-90 ampsâ€”use them with industrial automation systems, security and emergency lighting, and small motors. Also known as power relays.

High-Current Vehicle Relays

High-Current Vehicle Relays

Suitable for DC-powered equipment such as forklifts, floor scrubbers, and trucks.

Latching Relays

Latching Relays

A single, momentary input voltage switches these relays and locks them in position, so they don't require a constant input voltage to stay on or off.

Alternating Relays

Alternating Relays

Split run time between two devicesâ€”this relay will automatically alternate between them.

Signal Relays

Use these relays with circuits that control electric signals for PLCs and microprocessors.

Air-Actuated Relays

Also known as an air-to-electric switch, this relay converts an air signal to an electric signal.

Other Control Relays

Programmable Logic Controllers

Programmable Logic Controllers

The functionality of a relay, timer relay, and switch in one unit allows you to program complex automation jobs.

Timer Relays

Timer Relays

Set a time delay before these relays open or close a circuit.

Relay Sockets

Relay Sockets

Mount to DIN rail or flat surfaces, then plug your relay into the socket for fast installation.

Switches

Switches

Actuate switches to open or close a circuit.

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