Stud Terminal Switches | McMaster-Carr

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18 Products

About Electrical Switches

Choose a switch with the right trigger type, number of inputs, and control functions to power your equipment.

Battery Knob Switches

Alternate between two batteries without interrupting power. These switches are often used in marine applications.

						Mounting Holes
Actuator Material	No. of Terminals	Max. Voltage	Max. Continuous Current	Terminal Size	For Max. Wire Ga.	No. of	Dia.	Ht.	Wd.	Dp.	Environment	Environmental Rating	Specifications Met		Each
With Stud Terminals
For 3 5/8" Cutout Dia.
Plastic	3	32V DC	350 A @ 32 V DC	3/8"	4/0	4	1/4"	3 7/8"	3 7/8"	3 1/8"	Washdown	IP66	UL Listed, UL Marine Listed, CE Marked, ISO 8846, SAE J1171	69685K61	000000

Water-Resistant Stud-Terminal Relays

8VA and 12VA Control Power

8.1VA Control Power

Sealed to keep out water, these relays are often used 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.

1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO
Number of Terminals	Input Voltage	Control Power, VA	Full Load Switching Current @ Voltage	Ht.	Wd.	Dp.	Stud Thread Size		Each
4	12V DC	8	200 A @ 12 V DC	3.7"	3.3"	2.9"	5/16"-24	7995K31	000000
4	12V DC	8.1	100 A @ 12 V DC	2.9"	3.3"	2.1"	5/16"-24	7995K41	00000
4	24V DC	8.1	100 A @ 24 V DC	2.9"	3.3"	2.1"	5/16"-24	7995K42	00000
4	36V DC	8.1	100 A @ 36 V DC	2.9"	3.3"	2.1"	5/16"-24	7995K43	00000
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT
6	12V DC	12	100 A @ 12 V DC	4.6"	3.3"	2.9"	5/16"-24	7995K32	000000
6	24V DC	12	100 A @ 24 V DC	4.6"	3.3"	2.9"	5/16"-24	7995K33	000000

Stud-Terminal Relays

12VA Control Power

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.

3-terminal relays require the same input and switching voltage. 4- and 6-terminal relays allow different input and switching voltages.

1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO
Number of Terminals	Input Voltage	Control Power, VA	Full Load Switching Current @ Voltage	Ht.	Wd.	Dp.	Stud Thread Size	Features		Each
3	12V DC	12	100 A @ 12 V DC	3.6"	3.1"	2.2"	5/16"-24	__	7995K23	000000
4	12V DC	9	80 A @ 12 V DC	2.5"	3.5"	2.4"	5/16"-24	__	7995K11	00000
4	12V DC	9	80 A @ 12 V DC	2.5"	3.5"	2.4"	5/16"-24	Grounding Cord with Ring Terminal	7995K44	00000
4	12V DC	12	100 A @ 12 V DC	3.6"	3.1"	2.2"	5/16"-24	__	7995K21	00000
4	24V DC	9	50 A @ 24 V DC	2.5"	3.5"	2.4"	5/16"-24	__	7995K12	00000
4	24V DC	12	100 A @ 24 V DC	3.6"	3.1"	2.2"	5/16"-24	__	7995K25	00000
4	36V DC	9	50 A @ 36 V DC	2.5"	3.5"	2.4"	5/16"-24	__	7995K45	00000
4	36V DC	12	100 A @ 36 V DC	3.6"	3.1"	2.2"	5/16"-24	__	7995K22	00000
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT
6	12V DC	12	100 A @ 12 V DC	4.7"	3.1"	2.2"	5/16"-24	__	7995K46	000000
6	24V DC	12	100 A @ 24 V DC	4.7"	3.1"	2.2"	5/16"-24	__	7995K47	000000
6	36V DC	12	100 A @ 36 V DC	4.7"	3.1"	2.2"	5/16"-24	__	7995K24	00000