Toggle Motor Switches | McMaster-Carr

	Electrical Phase Electrical Phase

Single

Three

	Number of Circuits Controlled Number of Circuits Controlled

	Power Power

	Switching Current Switching Current

30A

60A

	Environment Environment

High-
Pressure
Washdown

Hazardous

	Overload Current Range Overload Current Range

	Environmental Rating Environmental Rating

IP69K

NEC Class I Divisions 1, 2
Groups C, D

NEC Class II Divisions 1, 2
Groups E, F, G

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Width Width

	Depth Depth

	Power-Indicating Light Power-Indicating Light

Without Power-Indicating
Light

With Power-Indicating Light

	Industry Designation Industry Designation

3PST-NO

DPST-NO

	Component Component

Thermal Overload Element

Switch

	Height Height

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

REACH Compliant

	Housing Color Housing Color

	Gray
	Black
	Clear

	Housing Material Housing Material

	Number of Mounting Holes Number of Mounting Holes

	Mounting Hole Diameter Mounting Hole Diameter

	Switch Starting Position Switch Starting Position

2 Off (Normally Open)

3 Off (Normally Open)

	Specifications Met Specifications Met

CSA

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

RoHS Compliant

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29 Products

About Motor Switches and Starters

Choosing an Electrical Switch

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

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

				Switching
No. of Circuits Controlled	Electrical Phase (hp)	Switch Starting Position	Industry Designation	Current, A	Voltage	Ht.	Wd.	Wire Connection Type	Specifications Met		Each
Stays Switched (Maintained)
2	Single (3 hp @ 240 V AC)	2 Off (Normally Open)	DPST-NO	30	600V AC	3.7"	1.8"	Screw Terminals	UL Listed, CSA Certified	0000000	000000
2	Single (5 hp @ 240 V AC)	2 Off (Normally Open)	DPST-NO	60	600V AC	3.8"	1.7"	Screw Terminals	UL Listed, CSA Certified	0000000	000000
3	Three (10 hp @ 240 V AC)	3 Off (Normally Open)	3PST-NO	60	600V AC	3.8"	1.7"	Screw Terminals	UL Listed, CSA Certified	0000000	000000
3	Three (7 1/2 hp @ 240 V AC)	3 Off (Normally Open)	3PST-NO	30	600V AC	3.7"	1.8"	Screw Terminals	UL Listed, CSA Certified	0000000	00000

Enclosed Motor Switches

These switches are housed in a protective enclosure. Use them to turn motors on and off, or with lighting and electric heat circuits. They do not provide overload protection.

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

				Switching
No. of Circuits Controlled	Electrical Phase (hp)	Switch Starting Position	Industry Designation	Current, A	Voltage	Ht.	Wd.	Wire Connection Type	Environment	Environmental Rating	Specifications Met		Each
Stays Switched (Maintained)
2	Single (3 hp @ 240 V AC)	2 Off (Normally Open)	DPST-NO	30	600V AC	4.2"	2.8"	Screw Terminals	Indoor	NEMA 1	UL Listed, CSA Certified	0000000	000000
2	Single (5 hp @ 240 V AC)	2 Off (Normally Open)	DPST-NO	60	600V AC	4.5"	4.7"	Screw Terminals	Indoor	NEMA 1	UL Listed, CSA Certified	0000000	000000
3	Three (10 hp @ 240 V AC)	3 Off (Normally Open)	3PST-NO	60	600V AC	4.5"	4.7"	Screw Terminals	Indoor	NEMA 1	UL Listed, CSA Certified	0000000	000000
3	Three (7 1/2 hp @ 240 V AC)	3 Off (Normally Open)	3PST-NO	30	600V AC	4.2"	2.8"	Screw Terminals	Indoor	NEMA 1	UL Listed, CSA Certified	0000000	00000

Washdown Enclosed Motor Switches

Rated NEMA 4X and 12K, these switches are protected from corrosion, washdowns, and oil/coolant dripping. Use them to turn motors on and off, or with other circuits such as lighting and electric heat circuits. They do not provide overload protection.

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

				Switching
No. of Circuits Controlled	Electrical Phase (hp)	Switch Starting Position	Industry Designation	Current, A	Voltage	Ht.	Wd.	Wire Connection Type	Environmental Rating	Specifications Met		Each
Stays Switched (Maintained)
3	Three (7 1/2 hp @ 240 V AC)	3 Off (Normally Open)	3PST-NO	30	600V AC	7.6"	5.1"	Screw Terminals	NEMA 4X, IP69K, NEMA 12K	UL Listed, C-UL Listed, CSA Certified, UL 746C, UL 94 5VA	0000000	0000000

Hazardous Location Enclosed Motor Switches

Use these switches where ignitable gas and dust may be present. They're rated Class I, Divisions 1 and 2, Groups C and D; and Class II, Divisions 1 and 2, Groups E, F, and G for hazardous locations. Use them to turn motors on and off, or with other circuits such as lighting and electric heat circuits. They do not provide overload protection.

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

				Switching
No. of Circuits Controlled	Electrical Phase (hp)	Switch Starting Position	Industry Designation	Current, A	Voltage	Ht.	Wd.	Wire Connection Type	Environmental Rating	Specifications Met		Each
Stays Switched (Maintained)
2	Single (3 hp @ 240 V AC)	2 Off (Normally Open)	DPST-NO	30	600V AC	6.5"	3"	Screw Terminals	NEC Class I Divisions 1, 2 Groups C, D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7 NEMA 9	UL Listed, C-UL Listed, CSA Certified	0000000	0000000
3	Three (7 1/2 hp @ 240 V AC)	3 Off (Normally Open)	3PST-NO	30	600V AC	6.5"	3"	Screw Terminals	NEC Class I Divisions 1, 2 Groups C, D NEC Class II Divisions 1, 2 Groups E, F, G NEMA 7 NEMA 9	UL Listed, C-UL Listed, CSA Certified	0000000	000000

Raintight Enclosed Motor Switches

These switches are rated NEMA 3R for protection from falling water and light splashing. Use them to turn motors on and off, or with other circuits such as lighting and electric heat circuits. They do not provide overload protection.

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

				Switching
No. of Circuits Controlled	Electrical Phase (hp)	Switch Starting Position	Industry Designation	Current, A	Voltage	Ht.	Wd.	Wire Connection Type	Environmental Rating	Specifications Met		Each
Stays Switched (Maintained)
2	Single (3 hp @ 240 V AC)	2 Off (Normally Open)	DPST-NO	30	600V AC	5.8"	4.5"	Screw Terminals	NEMA 3R	CSA Certified, UL Listed, UL 94 V-2	0000000	000000
3	Three (7 1/2 hp @ 240 V AC)	3 Off (Normally Open)	3PST-NO	30	600V AC	5.8"	4.5"	Screw Terminals	NEMA 3R	CSA Certified, UL Listed, UL 94 V-2	0000000	000000

Build-Your-Own Manual Motor Starters

Switch with Power
Indicating Light
and Steel Wall Plate

Switch with
Power Indicating
Light and Steel Housing

Switch withSteel Wall Plate

Switch with Steel Housing

Switch with Zinc Housing

Assemble your own motor starter by combining a switch and a thermal overload element.

NEMA 4 and 12 rated switches are protected from washdowns and oil/coolant dripping.

Thermal overload elements shut motors off if current exceeds the full-load current rating. To Order: Please specify the full-load current rating of your motor. If the full-load current rating is not shown on the motor’s faceplate, estimate the current rating (given the motor’s horsepower and voltage).

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

With Power-Indicating Light
No. of Circuits Controlled	Electrical Phase (hp)	Ht.	Wd.	Wire Connection Type	Environment	Environmental Rating		Each
Steel Wall Plate
1	Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	4.5"	2.8"	Screw Terminals	Indoor	__	0000000	000000
2	Single (3/4 hp @ 115 V DC) Single (3/4 hp @ 230 V DC) Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	4.5"	2.8"	Screw Terminals	Indoor	__	0000000	00000
Steel Housing
1	Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	4.3"	2.8"	Screw Terminals	Indoor	NEMA 1	0000000	00000
2	Single (3/4 hp @ 115 V DC) Single (3/4 hp @ 230 V DC) Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	4.3"	2.8"	Screw Terminals	Indoor	NEMA 1	0000000	000000
Without Power-Indicating Light
Steel Wall Plate
1	Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	4.5"	2.8"	Screw Terminals	Indoor	__	0000000	00000
Steel Housing
1	Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	4.3"	2.8"	Screw Terminals	Indoor	NEMA 1	0000000	00000
2	Single (3/4 hp @ 115 V DC) Single (3/4 hp @ 230 V DC) Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	4.3"	2.8"	Screw Terminals	Indoor	NEMA 1	0000000	00000
Zinc Housing
1	Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	5.5"	3.6"	Screw Terminals	Oily, Washdown	NEMA 4, NEMA 12	0000000	000000
2	Single (3/4 hp @ 115 V DC) Single (3/4 hp @ 230 V DC) Single (1 hp @ 115 V AC) Single (1 hp @ 230 V AC)	5.5"	3.6"	Screw Terminals	Oily, Washdown	NEMA 4, NEMA 12	0000000	000000

Thermal Overload Elements

Overload Current Range		Each
0.157-0.321A	0000000	000000
0.322-0.65A	0000000	00000
0.72-1.25A	0000000	00000
1.3-2.15A	0000000	00000
2.16-4.23A	0000000	00000
4.33-8.98A	0000000	00000
8.99-16A	0000000	00000