11A Relays | McMaster-Carr

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30 Products

Solid State Screw Terminal Relays


1-Circuit Relay with Covered Terminals and LED Indicator	1-Circuit Relay with LED Indicator	1-Circuit Relay with Covered Terminals

1-Circuit Relay	Heat Sinks

With no moving parts, these solid-state relays are fast switching and require less maintenance, last longer, and are quieter than mechanical switches.

Relays with High-Starting-Current Protection—Relays with high-starting-current protection are designed with integrated circuits that prevent damage from the large burst of electricity when a device, such as a motor or pump, turns on.

LED Indicator—Relays with LED indicator let you quickly spot whether a relay is on or off.

Heat Sinks—Heat sinks disperse heat to increase the relay’s current rating. Mount them to 35 mm DIN rail (also known as DIN 3 rail) for fast installation. They also mount to flat surfaces. Before mounting one-circuit relays, silicone compound or a thermal pad should be placed between the heat sink and relay. Silicone compound is sold separately for heat sinks that do not include it but require it. Two-circuit relays don’t require silicone for mounting.

	Relays										Heat Sinks		Silicone Compounds
			Switching Current @ Voltage
	No. of Terminals	Input Voltage	Without Heat Sink	With Heat Sink, amp	Max. Switching Voltage, V AC	Ht.	Wd.	Dp.		Each		Each		Each
1 Circuit Controlled with 1 Off—SPST-NO







				Relays with High-Starting-Current Protection

				4	85V AC, 120V AC, 240V AC, 280V AC	11 amp @ 240V AC	45	280	2.3"	1.8"	1"	7456K24	000000	7456K222	000000	10405K79	000000


				4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	11 amp @ 120V AC	45	140	2.3"	1.8"	1"	7456K22	00000	7456K222	00000	10405K79	00000
				4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	11 amp @ 240V AC	45	280	2.3"	1.8"	1"	7456K26	00000	7456K222	00000	10405K79	00000
				4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	11 amp @ 380V AC	45	420	2.3"	1.8"	1"	7456K133	000000	7456K222	00000	10405K79	00000




						Relays with High-Starting-Current Protection and LED Indicator

						4	3V DC, 6V DC, 12V DC, 24V DC, 30V DC	11 amp @ 240V AC	45	280	2.3"	1.8"	1"	7456K131	000000	7456K222	00000	10405K79	00000

DIN-Rail Mount Touch-Safe Screw Terminal Relays

Quickly and safely mount these relays on 35 mm DIN rail (also known as DIN 3). IP20 rated, they have recessed terminals that prevent fingers and other objects from touching live circuits.

3 Circuits Controlled and 4 Circuits Controlled—Relays that control 3 and 4 circuits are built to IEC dimensional standards and are often called IEC contactors.

12 Terminals—Relays with 12 terminals let you attach the control circuit onto the side that works best for your setup, which reduces the amount of wire you need.

						hp @ Switching Voltage
	No. of Terminals	Input Voltage	Control Power	Switching Current @ Voltage (Load Type)	Max. Switching Voltage, V AC	Single Phase	Three Phase	Ht.	Wd.	Dp.		Each
3 Circuits Controlled with 3 Off—3PST-NO







				With 1 Auxiliary Contact—1 Off

				12	24V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K321	000000


				12	120V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K322	00000
				12	240V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K323	00000
				12	24V DC	5.4 W	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.9"	70255K42	000000




						With 1 Auxiliary Contact—1 On

						12	24V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K351	00000


						12	120V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K352	00000
						12	240V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K353	00000
						12	24V DC	5.4 W	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.9"	70255K45	000000


						4 Circuits Controlled with 4 Off—4PST-NO



								12	24V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K391	000000


								12	120V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K392	000000
								12	240V AC	6.5 VA	11 amp @ 600V AC (Full) 28 amp @ 600V AC (Resistive)	600	1 hp @ 120V AC 2 hp @ 240V AC	5 hp @ 240V AC 7 1/2 hp @ 480V AC 10 hp @ 600V AC	3.2"	1.8"	3.2"	70255K393	000000

Accessories and Replacements for Relays

Relay Contacts


Front Mount	Side Mount

Relay contacts allow you to add a signaling device or control another relay. You can add one relay contact to all of these relays. For relays with 12 terminals, you can add two side-mount relay contacts.

No. of Circuits Controlled	For Relay Wd.	Switch Starting Position	Switch Designation	Mounting Location		Each
2	1.8", 2.4"	1 Off and 1 On	DPST-1NO/1NC	Front	70255K14	000000
2	1.8", 2.4"	1 Off and 1 On	DPST-1NO/1NC	Side	70255K26	00000

Contact Blocks

Front

Mount

Contact blocks allow you to add a signaling device or control another relay. You can add one contact block to all of these relays.

No. of Circuits Controlled	For Relay Wd.	Switch Starting Position	Switch Designation	Mounting Location		Each
2	1.8", 2.2", 2.4"	2 Off	DPST-NO	Front	8728N12	000000
2	1.8", 2.2", 2.4"	2 On	DPST-NC	Front	8728N11	00000
4	1.8", 2.2", 2.4"	1 Off and 3 On	4PST-1NO/3NC	Front	8728N15	00000
4	1.8", 2.2", 2.4"	2 Off and 2 On	4PST-2NO/2NC	Front	8728N16	00000
4	1.8", 2.2", 2.4"	3 Off and 1 On	4PST-3NO/1NC	Front	8728N17	00000
4	1.8", 2.2", 2.4"	4 Off	4PST-NO	Front	8728N14	00000
4	1.8", 2.2", 2.4"	4 On	4PST-NC	Front	8728N13	00000

Replacement Relay Coils

Image of Product. Front orientation. Relay Coils. DIN-Rail Mount Touch-Safe Screw Terminal Relays.

Use replacement coils to swap out a broken coil or change the input voltage of a relay. They are only compatible with relays that have 12 terminals. The full load current of the relay must match the full load current range of the coil.

For Switching Current (Load Type)	Input Voltage, V AC	Input Freq., Hz		Each
9 amp to 17 amp (Full)	24	60	8727N11	000000
9 amp to 17 amp (Full)	120	60	8727N12	00000
9 amp to 17 amp (Full)	240	60	8727N13	00000