208V AC Relays | McMaster-Carr

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	Input Voltage Input Voltage	Show

208V AC

	Input Voltage Input Voltage	Hide

3-30V AC

10-30V AC

12V AC

12-24V AC

12-240V AC

20-275V AC

20-280V AC

24V 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

5V DC

5-24V DC

5-32V DC

6V DC

9-110V DC

10-30V DC

12V DC

12-24V DC

12-240V DC

22-48V DC

24V DC

24-190V DC

24-240V DC

36V DC

48V DC

100-125V DC

100-240V DC

110-240V DC

	Switching Current Switching Current

	Number of Circuits Controlled Number of Circuits Controlled

	Electrical Phase Electrical Phase

Single

Three

	Power Power

	Wire Connection Type Wire Connection Type


Screw Terminals	Quick- Disconnect Terminals

	Load Type Load Type

Full

Resistive

	Industry Designation Industry Designation

	Number of Terminals Number of Terminals

	Switching Voltage Switching Voltage

600V AC

	Specifications Met Specifications Met

CSA

CE Marked

	Mounting Location Mounting Location

Surface

	Operation Type Operation Type

Mechanical

Solid State

	Relay Type Relay Type

	Standard

	Number of Mounting Holes Number of Mounting Holes

	Mounting Hole Diameter Mounting Hole Diameter

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

2 Off (Normally Open)

3 Off (Normally Open)

4 Off (Normally Open)

	Depth Depth

	Width Width

	Height Height

	Application Application

Power

	Mechanical Life Cycles Mechanical Life Cycles

500,000

	Switch Action Switch Action

Springs Back (Momentary)

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42 Products

About Relays

About Motor Switches and Starters

1 Circuit

2 Circuits

3 Circuits

4 Circuits

For use with equipment that cycles on and off, these relays meet UL 508 for air conditioning and heating. Connections are accessible from the front, so you can mount relays side-by-side. Also known as definite-purpose contactors.

Enclosures (sold separately) are NEMA 1 rated to protect contacts from corrosion.

Also Available: Auxiliary contacts for 3.8"-7.2" Ht. relays. They allow you to add a signaling device or control another relay. Please select 6564K99, then select the McMaster-Carr part number of your relay and whether you want to switch one circuit on (1 Normally Open) or off (1 Normally Closed).

			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.	Quick-Disconnect Tab Wd.	Specifications Met		Each
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO
With Quick-Disconnect and Screw Terminals
2	208/240V AC	6VA	25A	30A	2 hp @ 115 V AC 3 hp @ 230 V AC	__	3.2"	2"	2.3"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
2	208/240V AC	6VA	30A	40A	2 hp @ 115 V AC 5 hp @ 230 V AC	__	3.2"	2"	2.3"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
2	208/240V AC	6VA	40A	50A	3 hp @ 115 V AC 7 1/2 hp @ 230 V AC	__	3.2"	2"	2.3"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
2 Circuits Controlled with 2 Off (Normally Open)—DPST-NO
With Quick-Disconnect and Screw Terminals
4	208/240V AC	6.5VA	20A	30A	1 1/2 hp @ 115 V AC 3 hp @ 230 V AC	__	3.2"	2"	2.3"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
4	208/240V AC	6.5VA	25A	35A	2 hp @ 115 V AC 3 hp @ 230 V AC	__	3.2"	2"	2.3"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
4	208/240V AC	6.5VA	30A	40A	2 hp @ 115 V AC 5 hp @ 230 V AC	__	3.2"	2"	2.3"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
4	208/240V AC	6.5VA	40A	50A	3 hp @ 115 V AC 7 1/2 hp @ 230 V AC	__	3.2"	2"	2.3"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
4	208/240V AC	7VA	15A	20A	3/4 hp @ 115 V AC 2 hp @ 230 V AC	3 hp @ 230 V AC 5 hp @ 460 V AC 5 hp @ 575 V AC	3.8"	2.4"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
4	208/240V AC	10VA	50A	65A	3 hp @ 115 V AC 10 hp @ 230 V AC	15 hp @ 230 V AC 30 hp @ 460 V AC 30 hp @ 575 V AC	3.8"	2.4"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
4	208/240V AC	19VA	90A	120A	7 1/2 hp @ 115 V AC 20 hp @ 230 V AC	30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC	5.1"	3.4"	4.8"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
4	208/240V AC	50.4VA	60A	75A	5 hp @ 115 V AC 10 hp @ 230 V AC	20 hp @ 230 V AC 40 hp @ 460 V AC 40 hp @ 575 V AC	3.8"	2.6"	4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
4	208/240V AC	50.4VA	75A	90A	5 hp @ 115 V AC 15 hp @ 230 V AC	20 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC	3.8"	2.6"	4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
3 Circuits Controlled with 3 Off (Normally Open)—3PST-NO
With Screw Terminals
6	208/240V AC	49.8VA	120A	140A	__	__	7.2"	4.1"	5.9"	__	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
With Quick-Disconnect and Screw Terminals
6	208/240V AC	7VA	15A	20A	3/4 hp @ 115 V AC 2 hp @ 230 V AC	3 hp @ 230 V AC 5 hp @ 460 V AC 5 hp @ 575 V AC	3.8"	2.4"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
6	208/240V AC	7VA	25A	35A	2 hp @ 115 V AC 3 hp @ 230 V AC	7 1/2 hp @ 230 V AC 10 hp @ 460 V AC 10 hp @ 575 V AC	3.8"	2.4"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
6	208/240V AC	7VA	30A	40A	2 hp @ 115 V AC 5 hp @ 230 V AC	10 hp @ 230 V AC 15 hp @ 460 V AC 15 hp @ 575 V AC	3.8"	2.4"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
6	208/240V AC	7VA	40A	50A	3 hp @ 115 V AC 7 1/2 hp @ 230 V AC	10 hp @ 230 V AC 20 hp @ 460 V AC 20 hp @ 575 V AC	3.8"	2.4"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
6	208/240V AC	10VA	50A	65A	3 hp @ 115 V AC 10 hp @ 230 V AC	15 hp @ 230 V AC 30 hp @ 460 V AC 30 hp @ 575 V AC	3.8"	2.4"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
6	208/240V AC	19VA	90A	120A	7 1/2 hp @ 115 V AC 20 hp @ 230 V AC	30 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC	5.1"	3.4"	4.8"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
6	208/240V AC	50.4VA	60A	75A	5 hp @ 115 V AC 10 hp @ 230 V AC	20 hp @ 230 V AC 40 hp @ 460 V AC 40 hp @ 575 V AC	3.8"	2.6"	4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
6	208/240V AC	50.4VA	75A	90A	5 hp @ 115 V AC 15 hp @ 230 V AC	20 hp @ 230 V AC 50 hp @ 460 V AC 50 hp @ 575 V AC	3.8"	2.6"	4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
4 Circuits Controlled with 4 Off (Normally Open)—4PST-NO
With Quick-Disconnect and Screw Terminals
8	208/240V AC	50.4VA	25A	35A	2 hp @ 115 V AC 3 hp @ 230 V AC	7 1/2 hp @ 230 V AC 10 hp @ 460 V AC 10 hp @ 575 V AC	3.8"	2.7"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	00000
8	208/240V AC	50.4VA	30A	40A	2 hp @ 115 V AC 5 hp @ 230 V AC	10 hp @ 230 V AC 15 hp @ 460 V AC 15 hp @ 575 V AC	3.8"	2.7"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000
8	208/240V AC	50.4VA	40A	50A	3 hp @ 115 V AC 7 1/2 hp @ 230 V AC	10 hp @ 230 V AC 20 hp @ 460 V AC 20 hp @ 575 V AC	3.8"	2.7"	3.4"	0.25"	UL Recognized Component, CSA Certified, CE Marked, UL 508	00000000	000000

Enclosures for 60A 3PST-NO Relays and 4PST-NO Relays

00000000

Each

0000000

Heavy Duty Motor Starters

Sealed coils protect these switches against moisture, heat, dirt, and mechanical and thermal stress. They have a solid state overload relay that extends motor life in demanding applications and protects it from overloads—starters will shut the motor off if current exceeds the full-load current rating. The relay is adjustable; set it for the exact overload current needed. All have auxiliary contacts to send a signal or connect to another device, such as an alarm or indicating light. Also known as NEMA starters.

Note: The full-load current rating of your motor must fall within the starter’s overload current range. Match input voltage, also known as coil voltage, to your control circuit; motor voltage may be different. Look for the full-load current rating on the motor’s faceplate, or estimate the current rating (given the motor’s horsepower and voltage).

NEMA contact sizes 0 and 1 are universal mount and fit Cutler-Hammer, GE, and Square D installations.

For technical drawings and 3-D models, click on a part number.

Motor Starters								Replacement Coils
Overload Current, A	Input Voltage	Electrical Phase (hp)	Tripping Accuracy	Ht.	Wd.		Each		Each
Motor Starters with 1 Auxiliary Contact—1 Off (Normally Open)
NEMA Contact Size 0
0.25-1	208V AC	Three (1/6 hp @ 200 V AC) Three (1/6 hp @ 230 V AC) Three (1/3 hp @ 460 V AC) Three (1/2 hp @ 575 V AC)	±1%	7.4"	4.3"	00000000	0000000	00000000	0000000
0.75-3.4	208V AC	Three (1/2 hp @ 200 V AC) Three (3/4 hp @ 230 V AC) Three (1 1/2 hp @ 460 V AC) Three (2 hp @ 575 V AC)	±1%	7.4"	4.3"	00000000	000000	00000000	000000
3-12	208V AC	Three (2 hp @ 200 V AC) Three (2 hp @ 230 V AC) Three (5 hp @ 460 V AC) Three (5 hp @ 575 V AC)	±1%	7.4"	4.3"	00000000	000000	00000000	000000
5.5-22	208V AC	Three (3 hp @ 200 V AC) Three (3 hp @ 230 V AC)	±1%	7.4"	4.3"	00000000	000000	00000000	000000
NEMA Contact Size 1
3-12	208V AC	Three (2 hp @ 200 V AC) Three (2 hp @ 230 V AC) Three (5 hp @ 460 V AC) Three (5 hp @ 575 V AC)	±1%	7.4"	4.3"	00000000	000000	00000000	000000
5.5-22	208V AC	Three (3 hp @ 200 V AC) Three (3 hp @ 230 V AC) Three (10 hp @ 240 V AC) Three (10 hp @ 575 V AC)	±1%	7.4"	4.3"	00000000	000000	00000000	000000
10-40	208V AC	Three (7 1/2 hp @ 200 V AC) Three (7 1/2 hp @ 230 V AC)	±1%	7.4"	4.3"	00000000	000000	00000000	000000
NEMA Contact Size 2
13-52	208V AC	Three (10 hp @ 200 V AC) Three (15 hp @ 230 V AC) Three (25 hp @ 460 V AC) Three (25 hp @ 575 V AC)	±1%	8.1"	4.6"	00000000	000000	00000000	000000

Enclosed Heavy Duty Motor Starters

Housed in a durable steel enclosure, these switches have sealed coils for protection against moisture, heat, dirt, and mechanical and thermal stress. They have a solid state overload relay that extends motor life in demanding applications and protects it from overloads—starters will shut the motor off if current exceeds the full-load current rating. The relay is adjustable; set it for the exact overload current needed. All have auxiliary contacts to send a signal or connect to another device, such as an alarm or indicating light. Also known as NEMA starters.