11A Relays | McMaster-Carr

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	Input Voltage Input Voltage

24V AC

85-280V AC

	Switching Voltage Switching Voltage

120V AC

240V AC

600V AC

	Switching Current Switching Current	Show

11A

	Switching Current Switching Current	Hide

	Switching Current with Heat Sink Switching Current with Heat Sink

45A

	Number of Circuits Controlled Number of Circuits Controlled

	Mounting Location Mounting Location

DIN Rail

Surface

	Operation Type Operation Type

Mechanical

Solid State

	Industry Designation Industry Designation

3PST-NO

4PST-NO

SPST-NO

	Wire Connection Type Wire Connection Type

	Screw Terminals

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

3 Off (Normally Open)

4 Off (Normally Open)

	Number of Terminals Number of Terminals

	Width Width

1 4/5"

	Depth Depth

1.1"

3.2"

3.9"

	Electrical Phase Electrical Phase

Single

Three

	Application Application

Power

	Relay Type Relay Type

	Standard

	Power Power

	Height Height

2.3"

3.2"

	Switch Action Switch Action

Springs Back (Momentary)

	Specifications Met Specifications Met

CSA

CE Marked

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

DFARS Specialty Metals
COTS-Exempt

	Mounting Hole Diameter Mounting Hole Diameter

0.17"

0.18"

	Number of Mounting Holes Number of Mounting Holes

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18 Products

About Relays

1-Circuit Relay

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

Heat sinks can be used to disperse heat to increase the relay’s current rating. Mount to 35 mm DIN rail or flat surfaces. Before mounting one-circuit relays, silicone compound should be applied between the heat sink and relay.

Relays
		Switching Current									Heat Sinks
Number of Terminals	Input Voltage	Without Heat Sink	With Heat Sink	Switching Voltage	Ht.	Wd.	Dp.	Specifications Met		Each		Each
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO
With High-Starting-Current Protection
4	85-280V AC	11A	45A	240V AC	2.3"	1.8"	1.1"	CSA Certified CE Marked UL Recognized Component	0000000	000000	0000000	0000000
4	3-32V DC	11A	45A	120V AC	2.3"	1.8"	1.1"	CSA Certified CE Marked UL Recognized Component	0000000	00000	0000000	000000
4	3-32V DC	11A	45A	240V AC	2.3"	1.8"	1.1"	CSA Certified CE Marked UL Recognized Component	0000000	00000	0000000	000000

Silicone Compound for One-Circuit Relays (8 oz.)

00000000

Each

000000

High-Current Relays

4 Circuits

Use these relays with large motors and lighting systems. Also known as IEC contactors, they are built to International Electrotechnical Commission (IEC) dimensional standards. All have recessed terminals to prevent contact with live connections. Mount to 35 mm DIN rail.

Auxiliary contacts allow you to add a signaling device or control another relay. Add one front-mount contact per relay or two side-mount contacts per relay.

			Switching Current @ 600V AC		hp @ Switching Voltage
Number of Terminals	Input Voltage	Control Power	Full Load	Resistive Load	Single Phase	Three Phase	Ht.	Wd.	Dp.	Specifications Met		Each
3 Circuits Controlled with 3 Off (Normally Open)—3PST-NO
With 1 Auxiliary Contact—1 Off (Normally Open)
12	24V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	000000
12	120V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000
12	240V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000
12	24V DC	5.4W	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.9"	UL Listed C-UL Listed	00000000	00000
With 1 Auxiliary Contact—1 On (Normally Closed)
12	24V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000
12	120V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000
12	240V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000
12	24V DC	5.4W	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.9"	UL Listed C-UL Listed	00000000	00000
4 Circuits Controlled with 4 Off (Normally Open)—4PST-NO
12	24V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000
12	120V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000
12	240V AC	6.5VA	11A	28A	1 hp @ 120 V AC 2 hp @ 240 V AC	5 hp @ 240 V AC 7 1/2 hp @ 480 V AC 10 hp @ 600 V AC	3.2"	1.8"	3.2"	UL Listed C-UL Listed	000000000	00000

Side-Mount Auxiliary Contact for Relays Rated 9-32 Full-Load Amps—1 Off (Normally Open) and 1 On (Normally Closed)	00000000	Each	000000
Front-Mount Auxiliary Contact for Relays Rated 9-32 Full-Load Amps—1 Off (Normally Open) and 1 On (Normally Closed)	00000000	Each	00000

About Relays

Long-Life Medium-Current Relays

High-Current Relays