Lug Terminal Switches | McMaster-Carr

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	Switching Current Switching Current

	Electrical Phase Electrical Phase

Three

Single

	Switching Voltage Switching Voltage

	Power Power

	Maximum Voltage Maximum Voltage

	For Number of Wires For Number of Wires

	For Number of Fuses For Number of Fuses

	Number of Circuits Controlled Number of Circuits Controlled

	Knockout Trade Size Knockout Trade Size

	Environmental Rating Environmental Rating

NEMA 1

NEMA 3R

	Environment Environment

Corrosive

Damp

Outdoor

	System of Measurement System of Measurement

Inch

	Height Height

	For Fuse Class For Fuse Class

RK1

RK5

	Actuator Color Actuator Color

	Black
	Red

	Industry Designation Industry Designation

3PDT

3PST

DPST

	Switch Type Switch Type

Disconnect

	Width Width

	Depth Depth

	Housing Material Housing Material

Steel

	Housing Color Housing Color

	Gray

	Wire Connection Type Wire Connection Type	Show

Lug Terminals

	Wire Connection Type Wire Connection Type	Hide

Quick-Disconnect
Terminals

Ring Terminals

Screw Terminals

Screw-Clamp Terminals

Snap On

Solder

Solder Pin Terminals

Solder Turret Terminals

Solenoid Connectors

Spade Terminals

Spring-Clamp Terminals

Stud Terminals

Terminal Block

Wire Leads

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

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52 Products

Choosing an Electrical Switch

Matching Flow Diagrams to Replace an Air Directional Control Valve

Choosing an Air Directional Control Valve

Protected by a steel enclosure, these switches withstand tougher conditions than switches in a plastic housing. Also known as safety switches, they have quick-make/quick-break action to eliminate arcing and prolong switch life. They have a lockout to secure in the off position using a padlock (not included).

Use switches with a fuse holder where overload protection is needed. When used with UL Class RK1, RK5, or T fuses, they require rejection-style fuse clips. Note: Horsepower ratings are based on time-delay fuses installed.

Swithes with safety interlock keep the door closed when the switch is on, and prevent the switch from turning on when the door is open.

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

Switches
Switching													Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class
Current, A	Voltage	Switch Action	Industry Designation	Electrical Phase (hp)	For No. of Wires	For Fuse Class	Ht.	Wd.	Environmental Rating	Specifications Met		Each		Each
Enamel-Coated Steel with Black Actuator
3 Circuits with Lockout, Safety Interlock
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PDT	Single (10 hp @ 600 V AC) Single (5 hp @ 240 V AC) Single (7 1/2 hp @ 480 V AC)	3	__	29 15/16"	12"	NEMA 1	UL Listed	000000	0000000	000000	00
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PDT	Single (10 hp @ 240 V AC) Single (25 hp @ 480 V AC) Single (30 hp @ 600 V AC)	3	__	29 15/16"	12"	NEMA 1	UL Listed	000000	000000	000000	00
100	600V AC/ 600V DC	Stays Switched (Maintained)	3PDT	Single (20 hp @ 240 V AC) Single (40 hp @ 480 V AC) Single (40 hp @ 600 V AC)	3	__	29 15/16"	12"	NEMA 1	UL Listed	000000	00000000	000000	00
3 Circuits with Lockout, Safety Interlock, Fuse Holder
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PDT	Single (3 hp @ 240 V AC) Three (5 hp @ 480 V AC) Three (7 1/2 hp @ 600 V)	3	RK1, RK5, J, K5, H	38 7/16"	12"	NEMA 1	UL Listed	000000	00000000	000000	00
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PDT	Single (5 hp @ 480 V AC) Three (15 hp @ 480 V AC) Three (15 hp @ 600 V AC)	3	RK1, RK5, J, K5, H	38 7/16"	12"	NEMA 1	UL Listed	000000	00000000	000000	00
100	600V AC/ 600V DC	Stays Switched (Maintained)	3PDT	Single (10 hp @ 480 V AC) Three (25 hp @ 480 V AC) Three (30 hp @ 600 V AC)	3	RK1, RK5, J, K5, H	38 7/16"	12"	NEMA 1	UL Listed	000000	00000000	000000	00
Enamel-Coated Steel with Black/Red Actuator
3 Circuits with Lockout, Safety Interlock
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Single (10 hp @ 600 V AC) Three (30 hp @ 600 V AC)	3	__	14 5/8"	7 9/16"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	000000	000000	00
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Single (30 hp @ 600 V AC) Three (60 hp @ 600 V AC)	3	__	17 1/2"	10 1/2"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	000000	000000	00
3 Circuits with Lockout, Safety Interlock, Fuse Holder
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (20 hp @ 600 V AC)	3	RK1, RK5, J, H	14 5/8"	7 9/16"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	000000	00000000	000000
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (20 hp @ 600 V AC)	4	RK1, RK5, J, H	14 5/8"	7 9/16"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	000000	00000000	00000
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (50 hp @ 600 V AC)	3	RK1, RK5, J, H	17 1/2"	10 1/2"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	000000	00000000	00000
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (50 hp @ 600 V AC)	4	RK1, RK5, J, H	17 1/2"	10 1/2"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	000000	00000000	00000
100	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (75 hp @ 600 V AC)	4	RK1, RK5, J, H	21 1/4"	10 1/4"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	000000	00000000	00000
200	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (150 hp @ 600 V AC)	4	RK1, RK5, J, H	29"	18 1/2"	NEMA 1	UL Listed, Fed. Spec. WS-865C	0000000	00000000	00000000	00000
Powder-Coated Steel with Red Actuator
2 Circuits with Lockout, Safety Interlock, Fuse Holder
30	240V AC/ 250V DC	Stays Switched (Maintained)	DPST	Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC)	3	RK1, RK5, K5, H	14 1/4"	6 5/8"	NEMA 1	UL Listed	0000000	00000	00000000	00000
100	240V AC/ 250V DC	Stays Switched (Maintained)	DPST	Single (15 hp @ 240 V AC)	3	RK1, RK5, K5, T, H	23 1/8"	11 3/4"	NEMA 1	UL Listed	0000000	000000	00000000	00000
2 Circuits with Lockout, Fuse Holder
60	240V AC/ 250V DC	Stays Switched (Maintained)	DPST	Single (10 hp @ 240 V AC)	3	RK1, RK5, K5, H	10 1/16"	6 7/16"	NEMA 1	UL Listed	0000000	00000	00000000	00000
3 Circuits with Lockout, Safety Interlock
100	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (15 hp @ 240 V AC) Three (30 hp @ 240 V AC)	3	__	23 1/8"	11 3/4"	NEMA 1	UL Listed	0000000	000000	000000	00
3 Circuits with Lockout, Safety Interlock, Fuse Holder
30	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC)	3	RK1, RK5, K5, H	14 1/4"	6 5/8"	NEMA 1	UL Listed	0000000	000000	00000000	00000
100	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (15 hp @ 240 V AC) Three (30 hp @ 240 V AC)	4	RK1, RK5, K5, T, H	23 1/8"	11 3/4"	NEMA 1	UL Listed	0000000	000000	00000000	00000
3 Circuits with Lockout, Fuse Holder
60	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (10 hp @ 240 V AC) Three (15 hp @ 240 V AC)	4	RK1, RK5, K5, H	10 1/16"	6 7/16"	NEMA 1	UL Listed	0000000	000000	00000000	00000
3 Circuits with Lockout
30	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC)	3	__	6 3/8"	4 9/16"	NEMA 1	UL Listed	0000000	00000	000000	00
60	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Three (15 hp @ 240 V AC)	3	__	8 9/16"	5 7/16"	NEMA 1	UL Listed	0000000	00000	000000	00

Rejection-Style Fuse Clip for T Fuse Class

00000000

Each

000000

Outdoor Durable Disconnect Switches

A raintight NEMA 3R rated enclosure protects these switches from falling liquids and light splashing. The enclosure is steel, so it withstands tougher conditions than plastic enclosures. All have quick-make/quick-break action to eliminate arcing and prolong switch life. They have a lockout to secure in the off position using a padlock (not included).

Switches with safety interlock keep the door closed when the switch is on, and prevent the switch from turning on when the door is open.

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

Switches
Switching											Rejection-Style Fuse Clips for RK1 and RK5 Fuse Class
Current, A	Voltage	Switch Action	Industry Designation	Electrical Phase (hp)	For No. of Wires	For Fuse Class	Ht.	Wd.		Each		Each
Gray Enamel-Coated Steel with Black/Red Actuator
3 Circuits with Lockout, Safety Interlock
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Single (10 hp @ 240 V AC) Three (30 hp @ 600 V AC)	3	__	14 7/8"	7 11/16"	0000000	0000000	000000	00
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Single (30 hp @ 240 V AC) Three (60 hp @ 600 V AC)	3	__	17 1/2"	10 1/2"	0000000	000000	000000	00
3 Circuits with Lockout, Safety Interlock, Fuse Holder
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (20 hp @ 600 V AC)	3	RK1, RK5, J, H	14 7/8"	7 11/16"	0000000	000000	00000000	000000
30	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (20 hp @ 600 V AC)	4	RK1, RK5, J, H	14 7/8"	7 11/16"	0000000	000000	00000000	00000
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (50 hp @ 600 V AC)	3	RK1, RK5, J, H	17 1/2"	10 1/2"	0000000	000000	00000000	00000
60	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (50 hp @ 600 V AC)	4	RK1, RK5, J, H	17 1/2"	10 1/2"	0000000	000000	00000000	00000
100	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (75 hp @ 600 V AC)	4	RK1, RK5, J, H	21 1/4"	10 1/4"	0000000	000000	00000000	00000
200	600V AC/ 600V DC	Stays Switched (Maintained)	3PST	Three (150 hp @ 600 V AC)	4	RK1, RK5, J, H	29 1/4"	18 5/8"	0000000	00000000	00000000	00000
Gray Powder-Coated Steel with Red Actuator
2 Circuits with Lockout, Fuse Holder
30	240V AC/ 250V DC	Stays Switched (Maintained)	DPST	Single (3 hp @ 240 V AC)	3	RK1, RK5, K5, H	8 9/16"	5 7/16"	0000000	00000	00000000	00000
60	240V AC/ 250V DC	Stays Switched (Maintained)	DPST	Single (10 hp @ 240 V AC)	3	RK1, RK5, K5, H	10 1/16"	6 7/16"	0000000	000000	00000000	00000
2 Circuits with Lockout, Safety Interlock, Fuse Holder
100	240V AC/ 250V DC	Stays Switched (Maintained)	DPST	Single (15 hp @ 240 V AC)	3	RK1, RK5, K5, T, H	23 1/8"	12"	0000000	000000	00000000	00000
3 Circuits with Lockout
30	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Three (7 1/2 hp @ 240 V AC)	3	__	6 3/8"	4 9/16"	0000000	00000	000000	00
60	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Three (15 hp @ 240 V AC)	3	__	8 9/16"	5 7/16"	0000000	000000	000000	00
3 Circuits with Lockout, Fuse Holder
30	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (3 hp @ 240 V AC) Three (7 1/2 hp @ 240 V AC)	4	RK1, RK5, K5, H	8 9/16"	5 7/16"	0000000	00000	00000000	00000
60	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (10 hp @ 240 V AC) Three (15 hp @ 240 V AC)	4	RK1, RK5, K5, H	10 1/16"	6 7/16"	0000000	000000	00000000	00000
3 Circuits with Lockout, Safety Interlock
100	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Three (30 hp @ 240 V AC)	3	__	23 1/8"	12"	0000000	000000	000000	00
3 Circuits with Lockout, Safety Interlock, Fuse Holder
100	240V AC/ 250V DC	Stays Switched (Maintained)	3PST	Single (15 hp @ 240 V AC) Three (30 hp @ 240 V AC)	4	RK1, RK5, K5, T, H	23 1/8"	12"	0000000	000000	00000000	00000

Rejection-Style Fuse Clip for T Fuse Class

00000000

Each

000000

Single-Action Electrically Operated Air Directional Control Valves

These valves create one action, such as extending a cylinder. Apply voltage to the electrical connection to actuate. Also known as 3-way and 3/2 valves, they direct airflow from the inlet to your equipment and exhaust return airflow to create motion. In the off position, they exhaust air from the system, allowing equipment to reset so the action can be repeated.

Normally closed valves block airflow until actuated. Valves that are both normally closed and normally open can be installed to block airflow, or allow flow until actuated.

Valves with spring return actuation go back to their original position when voltage is removed.

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

Threaded Female Inlet × Threaded Female Outlet: Normally Closed Flow Positions

								O'all
	No. of Flow Ports	Inlet Size	Outlet Size	Exhaust Connection Type	Max. Flow Rate	Flow Coefficient (Cv)	Pressure Range, psi	Lg.	Wd.	Ht.	Mount Type	Choose a Voltage		Each
Single Solenoid—Spring Return Actuation
J	3	10-32 UNF	10-32 UNF	None (To Atmosphere)	0.6 scfm @ 100 psi	Not Rated	0-105	7/8"	1 1/4"	1 5/8"	Screw In	6V DC, 12V DC, 24V DC	000000	000000

Threaded Female Inlet × Threaded Female Outlet: Normally Open/Normally Closed Flow Positions

								O'all
	No. of Flow Ports	Inlet Size	Outlet Size	Exhaust Connection Type	Max. Flow Rate	Flow Coefficient (Cv)	Pressure Range, psi	Lg.	Wd.	Ht.	Mount Type	Choose a Voltage		Each
Single Solenoid—Spring Return Actuation
J	3	10-32 UNF	10-32 UNF	Threaded	0.6 scfm @ 100 psi	Not Rated	0-105	7/8"	1 1/4"	1 7/8"	Screw In	6V DC, 12V DC, 24V DC	000000	000000

Fully Insulated Quick-Disconnect Terminals for Style J Valves (Pkg. of 10)

0000000

Pkg.

00000