250V DC Switches | McMaster-Carr

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	Actuator Style Actuator Style


Plunger	Roller Lever

Roller Plunger	Rod

	Switching Voltage Switching Voltage	Show

250V DC

	Switching Voltage Switching Voltage	Hide

	Switching Current Switching Current

	Maximum Voltage Maximum Voltage

	Environment Environment

	Electrical Phase Electrical Phase

Three

Single

	Number of Circuits Controlled Number of Circuits Controlled

	For Number of Wires For Number of Wires

	Environmental Rating Environmental Rating

	Switch Action Switch Action

Stays Switched (Maintained)

Springs Back (Momentary)

	Wire Connection Type Wire Connection Type

Lug Terminals

Screw Terminals

	For Number of Fuses For Number of Fuses

	Power Power

	Switch Starting Position Switch Starting Position

1 Off (Normally Open) or 1 On
(Normally Closed)

	Housing Material Housing Material

Plastic

Steel

Zinc

	Switch Type Switch Type

Disconnect

Limit

	System of Measurement System of Measurement

Inch

	Actuator Height Actuator Height

	Knockout Trade Size Knockout Trade Size

	Number of Mounting Holes Number of Mounting Holes

	Industry Designation Industry Designation

3PST

DPST

SPDT

	Number of Terminals Number of Terminals

	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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32 Products

Choosing an Electrical Switch

Protect machinery and ensure the safety of personnel—these switches have positive-force contacts that will open the circuit when actuated even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and bin filling operations. All are NEMA and IP rated for protection from washdowns.

Styles E and F have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.

NEMA 13 and IP67 rated switches are protected from oil/coolant spraying and temporary submersion.

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

										Housing
Style	No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	Lg.	Ht.	Dp.	Housing Material	Environmental Rating		Each
Plunger Actuator Style
A	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 600 V AC, 10 A @ 250 V DC	600V AC 250V DC	-13° to 185°	1.3"	Screw Terminals	1.7"	3.2"	1.7"	Zinc	NEMA 4, NEMA 13, IP67	0000000	0000000
Roller Plunger Actuator Style
B	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 600 V AC, 10 A @ 250 V DC	600V AC 250V DC	-13° to 185°	1.8"	Screw Terminals	1.7"	3.2"	1.7"	Zinc	NEMA 4, NEMA 13, IP67	0000000	000000
Roller Lever Actuator Style
D	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 600 V AC, 10 A @ 250 V DC	600V AC 250V DC	-40° to 185°	2.5"	Screw Terminals	1.7"	3.2"	1.7"	Zinc	NEMA 4, NEMA 13, IP67	0000000	000000
E	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 600 V AC, 10 A @ 250 V DC	600V AC 250V DC	-40° to 185°	0.9"-3"	Screw Terminals	1.7"	3.2"	1.7"	Zinc	NEMA 4, NEMA 13, IP67	0000000	000000

Compact Safety Limit Switches

Shorter and thinner than other safety limit switches, these are sized to fit tight spaces. They protect machinery and ensure the safety of personnel. Positive-force contacts open the circuit when actuated, even if a spring fails or the contacts stick. When an object in motion comes into contact with the actuator, it sends a signal to open or close a circuit. They’re often used on conveyor systems and bin filling operations. All are NEMA and IP rated for protection from washdowns.

Styles E and F have an actuator that allows you to adjust its height, making it easier to align switch with the target during installation.

NEMA 13 and IP67 rated switches are protected from oil/coolant spraying and temporary submersion.

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

										Housing
Style	No. of Circuits Controlled	Switch Starting Position	Switch Action	Industry Designation	Switching Current @ Voltage	Max. Voltage	Operating Temp. Range, °F	Actuator Ht.	Wire Connection Type	Lg.	Ht.	Dp.	Housing Material	Environmental Rating		Each
Plunger Actuator Style
A	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	0.7"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	000000
Roller Plunger Actuator Style
B	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	1.1"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	00000
Roller Lever Actuator Style
D	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	2.1"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	00000
E	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 300 V AC, 10 A @ 250 V DC	300V AC 250V DC	-40° to 185°	0.9"-3"	Screw Terminals	1.2"	2.4"	1.2"	Zinc	NEMA 4, NEMA 13, IP66, IP67	0000000	00000
Rod Actuator Style
F	1	1 Off (Normally Open) or 1 On (Normally Closed)	Springs Back (Momentary)	SPDT	10 A @ 600 V AC, 10 A @ 250 V DC	600V AC 250V DC	-40° to 185°	0.6"-5.8"	Screw Terminals	1.2"	2.4"	1.2"	Plastic	NEMA 4, NEMA 13, IP66, IP67	00000000	00000

Durable Disconnect Switches

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
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	000000	00000000	000000
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 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	000000	00000000	000000
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