50A Switches | McMaster-Carr

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Electrical Phase

Number of Circuits Controlled

Horsepower @ Switching Voltage

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Switch Designation

Input Voltage

Switch Type

Switch Action

Number of Terminals

Actuator Style

Lever

Toggle Switch

Certification

C-UL Listed

C-UL Recognized Component

CE Marked

CSA Certified

UL Listed

UL Recognized Component

Voltage

Housing Color

Number of Positions

Position Designation

On-Off-On

Mounting Location

DIN Rail

Panel

Printed Circuit Board

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REACH

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Compliant with Exemptions

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Export Control Classification Number (ECCN)

EAR99

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Yes

DFARS Specialty Metals

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99 Products

Cam Panel-Mount Lever Switches

Thanks to their ability to handle higher current than switches with contact blocks, these switches are often found in applications from large motors to warehouse lighting systems. The cam pushes contacts more tightly together than contact blocks, allowing more electricity to flow through. However, they aren’t made to be rewired like switches with contact blocks are. These switches require you to grip and twist a lever to turn circuits on or off, so they won’t accidentally actuate if you bump into them. Mount them in a standard panel cutout diameter.

Choose a switch based on the complexity of your application.

Changeover Cam Switch—Changeover switches have three positions. They work well if you need to toggle between a primary power source and a backup generator.

Legend Plates—Legend plates (sold separately) give you a way to change your switch’s message.

	Lever Switches												Legend Plates
	Lever Lg.	No. of Circuits Controlled	Switch Action	No. of Terminals	Position Designation	Message	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel		Each	Message		Each
3 Positions for 3/8" and 10 mm Diameter Panel Cutouts







				Changeover with Screw Terminals

				1 3/4"	2	Maintained	6	On-Off-On	1-0-2	50 amp @ 600V AC	600V AC 600V DC	1 1/8"	3 1/8"	6958N35	0000000	Hand-Off-Auto	6958N43	000000


				1 3/4"	3	Maintained	9	On-Off-On	1-0-2	50 amp @ 600V AC	600V AC 600V DC	1 1/8"	3 15/16"	6958N36	000000	Hand-Off-Auto	6958N43	00000

Motor Switches

Toggle

Switch

Actuator

Use these switches to turn motors on and off, or to control lighting and electric heat circuits. They do not provide overload protection.

Toggle Switch Actuator—Toggle switches work like a traditional light switch—just flip the toggle up or down. Even if you’re wearing thick gloves, they’re easy to actuate.

					Switching
	No. of Circuits Controlled	Electrical Phase (hp)	Switch Starting Position	Switch Designation	Current, amp	Voltage, V AC	Ht.	Wd.	Wire Connection	Certification		Each
Maintained







				Toggle Switch Actuator

				2	Single (5 hp @ 240V AC)	2 Off	DPST-NO	50	600	3.8"	2.3"	Screw Terminal	UL Listed, CSA Certified	7858N11	0000000


				3	Three (7 1/2 hp @ 240V AC)	3 Off	3PST-NO	50	600	3.8"	2.3"	Screw Terminal	UL Listed, CSA Certified	7858N12	000000

Panel-Mount Compact Disconnect Switches

Install these switches in a panel cutout. Small enough to fit in tight spaces, they handle comparable electrical loads to standard sized switches. They cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance.

Maintained Switch About Maintained Switch

Image of Product. Front orientation. Disconnect Switches. Panel-Mount Compact Disconnect Switches.

Lockout—All switches have a lockout so you can secure them in the off position with a padlock (not included).

IP65 Enclosure Rating—They’re rated IP65 for protection from washdowns.

	Ht.	Wd.	Dp. Behind Panel	For Max. Padlock Shackle Dia.	Enclosure Rating	Certification	Specs. Met		Each
Gray Plastic Housing with Black Actuator







	3 Circuits Controlled with Lockout—For 3/8" Dia. Panel Cutouts

	50 amp @ 600V AC, 50 amp @ 24V DC	3PST	Single (3 hp @ 120V AC) Three (7 1/2 hp @ 120V AC) Three (15 hp @ 240V AC)	4"	3 1/8"	3 3/16"	5/16"	IP65	UL Recognized Component	UL 508	65915K105	0000000




			4 Circuits Controlled with Lockout—For 3/8" Dia. Panel Cutouts

			50 amp @ 600V AC, 50 amp @ 24V DC	4PST	Single (3 hp @ 120V AC) Three (7 1/2 hp @ 120V AC) Three (15 hp @ 240V AC)	4"	3 1/8"	3 3/16"	5/16"	IP65	UL Recognized Component	UL 508	65915K112	000000


			Yellow Plastic Housing with Red Actuator







							3 Circuits Controlled with Lockout—For 3/8" Dia. Panel Cutouts

							50 amp @ 600V AC, 50 amp @ 24V DC	3PST	Single (3 hp @ 120V AC) Three (7 1/2 hp @ 120V AC) Three (15 hp @ 240V AC)	4"	3 1/8"	3 3/16"	5/16"	IP65	UL Recognized Component	UL 508	65915K15	000000




									4 Circuits Controlled with Lockout—For 3/8" Dia. Panel Cutouts

									50 amp @ 600V AC, 50 amp @ 24V DC	4PST	Single (3 hp @ 120V AC) Three (7 1/2 hp @ 120V AC) Three (15 hp @ 240V AC)	4"	3 1/8"	3 3/16"	5/16"	IP65	UL Recognized Component	UL 508	65915K45	000000

Enclosed Disconnect Switches


Power Pole	Neutral Pole

Cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance. These switches are housed in a protective enclosure that resists denting, chipping, and cracking. Mount them to the wall when you run out of space in an electrical panel.

Use additional switch power poles to control more than three circuits. Add neutral poles to open and close the neutral leg of a three phase system.

Maintained Switch About Maintained Switch


Two-Circuit Switch with Lockout	Three-Circuit Switch	Three-Circuit Switch with Lockout

Lockout—Switches with lockout secure in the off position with a padlock with a maximum shackle diameter of _5/16” (not included).

Photovoltaic—Photovoltaic switches can be used with photovoltaic cells which convert sunlight into electricity.

	Switching
	Current, amp	Voltage	Switch Designation	Electrical Phase (hp)	Ht.	Wd.	For Max. Padlock Shackle Dia.	Wire Connection	Enclosure Rating	Certification		Each
Gray Plastic Housing with Red Actuator







				3 Circuits Controlled with Lockout

				50	600V AC	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	8 11/16"	5 7/8"	5/16"	Screw Terminal	IP40 NEMA 3	UL Listed, C-UL Listed, CE Marked	6759K313	0000000




						3 Circuits Controlled

						50	600V AC	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	8 11/16"	5 7/8"	—	Screw Terminal	IP40 NEMA 3	UL Listed, C-UL Listed, CE Marked	6759K333	000000


						Gray Plastic Housing with Gray Actuator







										3 Circuits Controlled with Lockout

										50	600V AC	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	8 11/16"	5 7/8"	5/16"	Screw Terminal	IP40 NEMA 3	UL Listed, C-UL Listed, CE Marked	6759K323	000000




												3 Circuits Controlled

												50	600V AC	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	8 11/16"	5 7/8"	—	Screw Terminal	IP40 NEMA 3	UL Listed, C-UL Listed, CE Marked	6759K343	000000


												Yellow Plastic Housing with Red Actuator







																2 Circuits Controlled with Lockout/Photovoltaic

																50	800V DC	DPST	—	12 5/8"	8 11/16"	5/16"	Screw Terminal	IP65 NEMA 3R	UL Listed, C-UL Listed, CE Marked	6759K74	000000

Accessories and Replacements for Disconnect Switches

				Yellow Plastic Housing with Red Actuator
25, 32, 50, 63	2 9/16"	2 9/16"	1 5/16"	7277K12	000000

Auxiliary Contact Blocks

Image of Product. Front orientation. Contact Blocks. Enclosed Disconnect Switches.

Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.

	Switching
No. of Circuits Controlled	Current, amp	Voltage, V AC	Switch Starting Position	Switch Designation		Each
1	10	600	1 Off or 1 On	SPDT	7277K11	000000

Switching Current, amp	Certification		Each
50	UL Listed, CE Marked	6759K413	000000

Switching Current, amp	Certification		Each
50	UL Listed, CE Marked	6759K423	000000

For Current, amp	Certification		Each
50, 63	UL Listed, CE Marked	6759K432	000000

		Each
"Main Switch" Label with Adhesive Back—13/16" Ht. × 3 3/16" Wd.	6759K65	000000

Panel-Mount Disconnect Switches


	Power Pole	Neutral Pole

Install these switches in a panel cutout. They cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance.

Use additional switch power poles to control more than three circuits. Add neutral poles to open and close the neutral leg of a three phase system.

Maintained Switch About Maintained Switch

Switch with

Lockout

Lockout—Switches with lockout secure in the off position with a padlock with a maximum shackle diameter of _5/16” (not included).

Certification—All are UL listed, C-UL listed, and CE marked—they meet American, Canadian, and European safety standards.

	Switching
	Current, amp	Voltage, V AC	Switch Designation	Electrical Phase (hp)	Ht.	Wd.	Dp. Behind Panel	For Max. Padlock Shackle Dia.	Wire Connection	Enclosure Rating	Certification		Each
Gray Plastic Housing with Gray Actuator







				3 Circuits Controlled—For 3/8" Dia. Panel Cutouts

				50	600	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	2 13/16"	2 13/16"	2 3/8"	—	Screw Terminal	IP40	UL Listed, C-UL Listed, CE Marked	6759K243	000000




						3 Circuits Controlled with Lockout—For 3/8" Dia. Panel Cutouts

						50	600	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	2 5/8"	2 5/8"	2 3/8"	5/16"	Screw Terminal	IP40	UL Listed, C-UL Listed, CE Marked	6759K223	00000


						Yellow Plastic Housing with Red Actuator







										3 Circuits Controlled—For 3/8" Dia. Panel Cutouts

										50	600	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	2 13/16"	2 13/16"	2 3/8"	—	Screw Terminal	IP40	UL Listed, C-UL Listed, CE Marked	6759K233	00000




												3 Circuits Controlled with Lockout—For 3/8" Dia. Panel Cutouts

												50	600	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	2 5/8"	2 5/8"	2 3/8"	5/16"	Screw Terminal	IP40	UL Listed, C-UL Listed, CE Marked	6759K213	00000

Accessories and Replacements for Disconnect Switches

Replacement Actuators

Image of Product. Front orientation. Disconnect Switch Actuators. Panel-Mount Disconnect Switches.

				Gray Plastic Housing with Gray Actuator		Yellow Plastic Housing with Red Actuator
For Switching Current, amp	Ht.	Wd.	Dp.		Each		Each
25, 32, 50, 63	2 9/16"	2 9/16"	1 5/16"	7277K46	000000	7277K12	000000

Auxiliary Contact Blocks

Image of Product. Front orientation. Contact Blocks. Panel-Mount Disconnect Switches.

Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.

	Switching
No. of Circuits Controlled	Current, amp	Voltage, V AC	Switch Starting Position	Switch Designation		Each
1	10	600	1 Off or 1 On	SPDT	7277K11	000000

Switching Current, amp	Certification		Each
50	UL Listed, CE Marked	6759K413	000000

Switching Current, amp	Certification		Each
50	UL Listed, CE Marked	6759K423	000000

For Current, amp	Certification		Each
50, 63	UL Listed, CE Marked	6759K432	000000

Terminal Covers

Image of Product. Front orientation. Terminal Block Covers. Panel-Mount Disconnect Switches.

Terminal covers prevent contact with live terminals.

For Use With		Each
Power Poles, Neutral Poles, Junction Blocks	7277K23	00000
Switch Contact Blocks	7277K22	0000
Auxiliary Contact Blocks	7277K14	0000

		Each
"Main Switch" Label with Adhesive Back—13/16" Ht. × 3 3/16" Wd.	6759K65	000000

Enclosure Disconnect Switches

Install these switches inside an enclosure to prevent it from opening when power is on—turn the switch to disconnect power and release the door. Cut the shaft to fit the enclosure. Use a padlock (not included) to lock switches in the off position.

Use additional switch power poles to control more than three circuits. Add neutral poles to open and close the neutral leg of a three-phase system.

Switches with Lockout Only


3 Circuits	4 Circuits	Sealing Gaskets

Mounting Depth—Mount to DIN rail inside an enclosure; mounting depth is the distance from the panel door to the DIN rail.

Enclosure Rating—All meet at least one safety standard.

Sealing Gaskets—Use sealing gaskets in washdown environments; they create an IP65 rated seal around the actuator.

	Switches										Replacement Shafts		Replacement Shaft Bases		Sealing Gaskets
	Switching
	Current, amp	Voltage, V AC	Electrical Phase (hp)	Ht.	Wd.	For DIN Rail Ht., mm	Mounting Dp.	Enclosure Rating		Each		Each		Each		Each
Gray Plastic Housing with Gray Actuator







				3 Circuits Controlled—For 1 3/16" Dia. Panel Cutouts

				50	600	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (3 hp @ 120V AC) Three (7 1/2 hp @ 240V AC)	2 5/8"	2 5/8"	35	5 5/16" to 16 1/8"	IP40	7277K28	000000	7277K16	000000	7277K17	00000	7277K18	00000


				Yellow Plastic Housing with Red Actuator







								3 Circuits Controlled—For 1 3/16" Dia. Panel Cutouts

								50	600	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (3 hp @ 120V AC) Three (7 1/2 hp @ 240V AC)	2 5/8"	2 5/8"	35	5 5/16" to 16 1/8"	IP40	7277K53	00000	7277K16	00000	7277K17	0000	7277K18	0000




										4 Circuits Controlled—For 1 3/16" Dia. Panel Cutouts

										50	600	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (3 hp @ 120V AC) Three (7 1/2 hp @ 240V AC)	2 5/8"	2 5/8"	35	5 5/16" to 16 1/8"	IP40	7277K35	000000	7277K16	00000	7277K17	0000	7277K18	0000

Accessories and Replacements for Disconnect Switches

Replacement Actuators

Image of Product. Front orientation. Disconnect Switch Actuators. Enclosure Disconnect Switches, Switches with Lockout Only.

				Gray Plastic Housing with Gray Actuator		Yellow Plastic Housing with Red Actuator
For Switching Current, amp	Ht.	Wd.	Dp.		Each		Each
25, 32, 50, 63	2 9/16"	2 9/16"	1 5/16"	7277K46	000000	7277K12	000000

Auxiliary Contact Blocks

Image of Product. Front orientation. Contact Blocks. Enclosure Disconnect Switches, Switches with Lockout Only.

Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.

	Switching
No. of Circuits Controlled	Current, amp	Voltage, V AC	Switch Starting Position	Switch Designation		Each
1	10	600	1 Off or 1 On	SPDT	7277K11	000000

Switching Current, amp	Certification		Each
50	UL Listed, CE Marked	6759K413	000000

Switching Current, amp	Certification		Each
50	UL Listed, CE Marked	6759K423	000000

For Current, amp	Certification		Each
50, 63	UL Listed, CE Marked	6759K432	000000

Terminal Covers

Image of Product. Front orientation. Terminal Block Covers. Enclosure Disconnect Switches.

Terminal covers prevent contact with live terminals.

For Use With		Each
Power Poles, Neutral Poles, Junction Blocks	7277K23	00000
Switch Contact Blocks	7277K22	0000
Auxiliary Contact Blocks	7277K14	0000

Manual Override Enclosure Disconnect Switches


Power Pole	Neutral Pole

Keep power running while you access your enclosure. Unlike standard enclosure disconnect switches, which shut off power as you open your enclosure, these have an override function. Engaging the override allows you to take voltage reading, troubleshoot an error code, or fine tune the speed of your line. Cut the shaft to fit your enclosure.

Use additional switch power poles to control more than three circuits. Add neutral poles to open and close the neutral leg of a three-phase system.

Lockout—All switches have a lockout so you can secure them in the off position with a padlock (not included).

Safety Interlock—When the override is off, these work like a standard disconnect switch—a safety interlock prevents your enclosure from opening when power is on. The interlock also prevents the switch from turning on when the door is already open.

	Switching
	Current, amp	Voltage, V AC	Electrical Phase (hp)	Ht.	Wd.	For Max. Padlock Shackle Dia.	For DIN Rail Ht., mm	Mounting Dp.	Enclosure Rating	Certification		Each
Black Plastic Housing with Black Actuator







				3 Circuits Controlled with Lockout and Safety Interlock—For 1 1/2" Dia. Panel Cutouts

				50	600	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (3 hp @ 120V AC) Three (7 1/2 hp @ 240V AC)	3"	4 1/16"	5/16"	35	5 5/16" to 16 1/8"	IP66 NEMA 4X NEMA 12	UL Listed, C-UL Listed, CE Marked	7994N19	0000000


				Black Plastic Housing with Red Actuator







								3 Circuits Controlled with Lockout and Safety Interlock—For 1 1/2" Dia. Panel Cutouts

								50	600	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (3 hp @ 120V AC) Three (7 1/2 hp @ 240V AC)	3"	4 1/16"	5/16"	35	5 5/16" to 16 1/8"	IP66 NEMA 4X NEMA 12	UL Listed, C-UL Listed, CE Marked	7994N13	000000

Accessories and Replacements for Disconnect Switches

			Black Plastic Housing with Black Actuator	Black Plastic Housing with Red Actuator
25, 32, 50, 63, 80, 100	3"	4 1/16"	7994N25	000000	7994N24	000000

Auxiliary Contact Blocks

Image of Product. Front orientation. Contact Blocks. Manual Override Enclosure Disconnect Switches.

Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.

	Switching
No. of Circuits Controlled	Current, amp	Voltage, V AC	Switch Starting Position	Switch Designation		Each
1	10	600	1 Off or 1 On	SPDT	7277K11	000000

Terminal Covers

Image of Product. Front orientation. Terminal Block Covers. Manual Override Enclosure Disconnect Switches.

Terminal covers prevent contact with live terminals.

For Use With		Each
Power Poles, Neutral Poles, Junction Blocks	7277K23	00000
Switch Contact Blocks	7277K22	0000
Auxiliary Contact Blocks	7277K14	0000

DIN-Rail Mount Disconnect Switches


Power Pole	Neutral Pole

Often used in electrical enclosures, these switches mount directly to DIN rails. They cut power and keep it isolated to stop equipment from starting up during inspection and maintenance. For an extra level of security, add a padlock (not included) to lock out the actuator lever in the Off position.

Use additional switch power poles to control additional circuits. Add neutral poles to open and close the neutral leg of a three-phase system.

Maintained Switch About Maintained Switch

	Switching
	Current, amp	Voltage, V AC	Switch Designation	Electrical Phase (hp)	Ht.	Wd.	For Max. Padlock Shackle Dia.	For DIN Rail Ht., mm	Wire Connection	Certification	Specs. Met		Each
Gray Plastic Housing with Black Actuator







				3 Circuits Controlled with Lockout

				50	600	3PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	3 3/8"	2 1/8"	5/16"	35	Screw Terminal	UL Listed, C-UL Listed, CE Marked	UL 508	7815N13	000000




						4 Circuits Controlled with Lockout

						50	600	4PST	Single (1 1/2 hp @ 120V AC) Single (3 hp @ 240V AC) Three (7 1/2 hp @ 240V AC)	3 3/8"	2 1/8"	5/16"	35	Screw Terminal	UL Listed, C-UL Listed, CE Marked	UL 508	7815N19	00000

Accessories for Disconnect Switches

Auxiliary Contact Blocks

Image of Product. Front orientation. Contact Blocks. DIN-Rail Mount Disconnect Switches.

Add auxiliary contact blocks to send a signal or connect to another device, such as an alarm or indicating light.

	Switching
No. of Circuits Controlled	Current, amp	Voltage, V AC	Switch Starting Position	Switch Designation		Each
1	10	600	1 Off or 1 On	SPDT	7277K11	000000

Terminal Covers

Image of Product. Front orientation. Terminal Block Covers. DIN-Rail Mount Disconnect Switches.

Terminal covers prevent contact with live terminals.

For Use With		Each
Power Poles, Neutral Poles, Junction Blocks	7277K23	00000
Switch Contact Blocks	7277K22	0000
Auxiliary Contact Blocks	7277K14	0000

Enclosed Compact Disconnect Switches

Small yet mighty, these switches are about as tall and wide as an index card yet durable enough to mount directly to a wall. Don’t be fooled by their size—these switches can handle electrical loads comparable to a standard sized switch.

These switches cut power and keep it isolated to prevent equipment from starting up during inspection and maintenance.

Maintained Switch About Maintained Switch

Image of Product. Front orientation. Disconnect Switches. Enclosed Compact Disconnect Switches.

Plastic Housing—Their plastic housing protects the switch and resists denting, chipping, and cracking.

Lockout—All switches have a lockout so you can secure them in the off position with a padlock (not included).

IP65 Enclosure Rating—Rated IP65, the housing also seals out water even in frequently washed down areas.

	Ht.	Wd.	For Max. Padlock Shackle Dia.	Enclosure Rating	Certification	Specs. Met		Each
Yellow Plastic Housing with Red Actuator







	3 Circuits Controlled with Lockout

	50 amp @ 600V AC, 50 amp @ 24V DC	3PST	Single (3 hp @ 120V AC) Three (7 1/2 hp @ 120V AC) Three (15 hp @ 240V AC)	5 5/16"	6 11/16"	5/16"	IP65	UL Recognized Component, CSA Certified	UL 508	65915K25	0000000




			4 Circuits Controlled with Lockout

			50 amp @ 600V AC, 50 amp @ 24V DC	4PST	Single (3 hp @ 120V AC) Three (7 1/2 hp @ 120V AC) Three (15 hp @ 240V AC)	5 5/16"	6 11/16"	5/16"	IP65	UL Recognized Component, CSA Certified	—	65915K38	000000

Stud-Terminal Relays

9VA Control Power

These relays are suitable for DC-powered equipment such as forklifts, floor scrubbers, and trucks. They are rated for continuous operation for cycles that run longer than 30 seconds.

4 Terminals—4- and 6-terminal relays allow different input and switching voltages.

	Switching Current @ Voltage	Load Type	Ht.	Wd.	Dp.	Stud Thread Size		Each
1 Circuit Controlled with 1 Off—SPST-NO







	Surface Mount

	4	24	9	50 amp @ 24V DC	Full	2.5"	3.5"	2.4"	5/16"-24	7995K12	000000


	4	36	9	50 amp @ 36V DC	Full	2.5"	3.5"	2.4"	5/16"-24	7995K45	00000

Circuit Board Relays


8 Terminals	5 Terminals	6 Terminals	14 Terminals

Smaller than relays with electrical wiring, these relays fit in compact devices. Mount them through holes on circuit boards with their solder pin terminals. Use them to control heaters, fans, and other high-power components from a low-power circuit.

	Switching Current @ Voltage	Max. Switching Voltage, V AC	Mechanical Life Cycles	Ht.	Wd.	Dp.	Pin Lg.		Each
Mechanical Operation







	2 Circuits Controlled with 2 Off—DPST-NO

	6	12V DC	141	50 amp @ 400V AC	400	1,000,000	2"	1.3"	2.3"	0.18"	6301N13	000000




			3 Circuits Controlled with 3 Off—3PST-NO

			8	12V DC	224	50 amp @ 400V AC	400	1,000,000	2"	1.3"	2.3"	0.18"	6301N16	00000


			8	24V DC	71	50 amp @ 400V AC	400	1,000,000	2"	1.3"	2.3"	0.18"	6301N17	00000

Infrequent-Cycle Relays


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.

Auxiliary contacts for 3.8"-7.2" Ht. relays are also available. 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 or off.

				Switching Current @ 600V AC, amp		hp @ Switching Voltage
	No. of Terminals	Input Voltage	Control Power	Full Load	Resistive Load	Single Phase	Three Phase	Ht.	Wd.	Dp.	Quick-Disconnect Tab Wd.		Each
1 Circuit Controlled with 1 Off—SPST-NO







				Quick-Disconnect × Screw Terminal

				2	24V AC	6 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	—	3.2"	2"	2.3"	0.25"	6564K861	0000000


				2	120V AC	6 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	—	3.2"	2"	2.3"	0.25"	6564K862	000000
				2	208V AC, 240V AC	6 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	—	3.2"	2"	2.3"	0.25"	6564K863	000000


				2 Circuits Controlled with 2 Off—DPST-NO







								Quick-Disconnect × Screw Terminal

								4	24V AC	6.5 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	—	3.2"	2"	2.3"	0.25"	6564K764	000000


								4	24V AC	10 VA	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K774	000000
								4	120V AC	6.5 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	—	3.2"	2"	2.3"	0.25"	6564K765	000000
								4	120V AC	10 VA	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K775	000000
								4	208V AC, 240V AC	6.5 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	—	3.2"	2"	2.3"	0.25"	6564K766	000000
								4	208V AC, 240V AC	10 VA	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K776	000000
								4	24V DC	3.1 W	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	—	3.8"	2.4"	3.4"	0.25"	6564K519	000000
								4	24V DC	3.1 W	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K523	000000


								3 Circuits Controlled with 3 Off—3PST-NO







												Quick-Disconnect × Screw Terminal

												6	24V AC	7 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K951	000000


												6	24V AC	10 VA	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K961	000000
												6	120V AC	7 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K952	000000
												6	120V AC	10 VA	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K962	000000
												6	208V AC, 240V AC	7 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K953	000000
												6	208V AC, 240V AC	10 VA	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K963	000000
												6	24V DC	3.1 W	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K521	000000
												6	24V DC	3.1 W	50	65	3 hp @ 115V AC 10 hp @ 230V AC	15 hp @ 230V AC 30 hp @ 460V AC 30 hp @ 575V AC	3.8"	2.4"	3.4"	0.25"	6564K524	000000


												4 Circuits Controlled with 4 Off—4PST-NO







														Quick-Disconnect × Screw Terminal

		8	24V AC											50.4 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.7"	3.4"	0.25"	6564K301	000000


		8	120V AC											50.4 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.7"	3.4"	0.25"	6564K302	000000
		8	208V AC, 240V AC											50.4 VA	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.7"	3.4"	0.25"	6564K303	000000
		8	24V DC											5.1 W	40	50	3 hp @ 115V AC 7 1/2 hp @ 230V AC	10 hp @ 230V AC 20 hp @ 460V AC 20 hp @ 575V AC	3.8"	2.7"	3.4"	0.25"	6564K522	000000

Enclosures

Vehicle Relays


Relay-Socket Mount, 4 Terminals	Relay-Socket and Surface Mount, 4 Terminals	Sockets with Crimp- On Terminals	Sockets with Wire Leads

These relays handle the high starting (inrush) currents that often occur when turning on a vehicle. Also known as ISO relays, their blade terminals meet ISO 8092-1 dimensional standards to fit in road vehicles for easy maintenance and repair.

Relays with surge suppression coverage prevent damage to sensitive equipment by reducing the 300V to 500V spike that happens when you switch relays off.

Surface Mount—Relays for surface mounting have a tab for added security in high-vibration applications.

Partial—Relays with partial surge suppression coverage bring this spike down to 100V.

	Vehicle Relays														Sockets with Crimp- On Terminals		Sockets with Wire Leads
	No. of Terminals	Input Voltage, V DC	Switching Current @ Voltage (Off Circuit Position)	Max. Switching Voltage, V DC	Max. Starting Current, amp	Control Current, mA	Surge Suppression Coverage	Relay Terminal Layout	Ht.	Wd.	Dp.	Quick-Disconnect Tab Wd.		Each		Each		Each
Relay-Socket Mount







				1 Circuit Controlled with 1 Off—SPST-NO

				4	12	50 amp @ 12V DC	18	200	138	Partial	Type B	1"	1"	0.9"	0.25", 0.375"	9672K102	000000	8228K43	00000	8228K12	000000


				Relay-Socket and Surface Mount







								1 Circuit Controlled with 1 Off—SPST-NO

								4	12	50 amp @ 12V DC	18	150	138	—	Type B	1.2"	1"	1"	0.25", 0.375"	9672K36	00000	8228K43	0000	8228K12	00000

Touch-Safe DIN-Rail Mount Infrequent-Cycle Relays


10 Terminals	12 Terminals

Operate equipment that cycles on and off from your control cabinet. Often called definite-purpose contactors, these relays meet UL 508 for use with air conditioning and heating. Mount them directly to 35 mm DIN rail (also known as DIN 3 rail) for fast installation. They have recessed terminals that prevent fingers and other objects from touching live circuits. You can wire the control circuit on either side of the relay, which helps you use less wire.

			Switching Current @ 600V AC, amp			hp @ Switching Voltage
No. of Terminals	Input Voltage	Control Power	Full Load	Resistive Load	Max. Switching Voltage, V AC	Single Phase	Three Phase	Ht.	Wd.	Dp.		Each







			3 Circuits Controlled with 3 Off—3PST-NO

			10	24V AC	9 VA	40	50	600	3 hp @ 120V AC 7 1/2 hp @ 240V AC	10 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	3.5"	9114T351	0000000


			10	24V AC	9 VA	50	55	600	3 hp @ 120V AC 10 hp @ 240V AC	15 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	3.5"	9114T361	000000
			10	120V AC	9 VA	40	50	600	3 hp @ 120V AC 7 1/2 hp @ 240V AC	10 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	3.5"	9114T352	000000
			10	120V AC	9 VA	50	55	600	3 hp @ 120V AC 10 hp @ 240V AC	15 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	3.5"	9114T362	000000
			10	240V AC	9 VA	40	50	600	3 hp @ 120V AC 7 1/2 hp @ 240V AC	10 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	3.5"	9114T353	000000
			10	240V AC	9 VA	50	55	600	3 hp @ 120V AC 10 hp @ 240V AC	15 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	3.5"	9114T363	000000
			10	24V DC	5.4 W	40	50	600	3 hp @ 120V AC 7 1/2 hp @ 240V AC	10 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	4.2"	9114T45	000000
			10	24V DC	5.4 W	50	55	600	3 hp @ 120V AC 10 hp @ 240V AC	15 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	1.8"	4.2"	9114T46	000000




					4 Circuits Controlled with 4 Off—4PST-NO

					12	24V AC	9 VA	40	50	600	3 hp @ 120V AC 7 1/2 hp @ 240V AC	10 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	2.4"	3.5"	9114T411	000000


					12	120V AC	9 VA	40	50	600	3 hp @ 120V AC 7 1/2 hp @ 240V AC	10 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	2.4"	3.5"	9114T412	000000
					12	240V AC	9 VA	40	50	600	3 hp @ 120V AC 7 1/2 hp @ 240V AC	10 hp @ 240V AC 30 hp @ 480V AC 40 hp @ 600V AC	3.5"	2.4"	3.5"	9114T413	000000

Accessories and Replacements for Infrequent-Cycle Relays

Contact Blocks

Front

Mount

Auxiliary contacts allow you to add a signaling device or control another relay.

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

Relay Contacts


Front Mount	Side Mount

Auxiliary contacts allow you to add a signaling device or control another relay.

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

Replacement Relay Coils

Image of Product. Front orientation. Relay Coils.

Use replacement coils to swap out a broken coil or change the input voltage of a relay. 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
22 amp to 32 amp (Full)	24	60	8727N14	000000
22 amp to 32 amp (Full)	120	60	8727N15	00000
22 amp to 32 amp (Full)	240	60	8727N16	00000