Rotary Cam Switches | McMaster-Carr

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	Actuator Style Actuator Style	Show

	Rotary

	Actuator Style Actuator Style	Hide


Lever	Rotary

Push Button

	Number of Positions Number of Positions

	Number of Circuits Controlled Number of Circuits Controlled

	Number of Terminals Number of Terminals

	Switching Voltage Switching Voltage

	Switch Action Switch Action

Stays Switched (Maintained)

Springs Back (Momentary)

	For Panel Cutout Diameter For Panel Cutout Diameter

	Wire Connection Type Wire Connection Type

Solder Turret Terminals

	Shaft Diameter Shaft Diameter

1/8"

1/4"

	Switch Starting Position Switch Starting Position

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

2 Off (Normally Open)

2 Off (Normally Open) and 1
On (Normally Closed)

3 Off (Normally Open)

	Switching Current Switching Current

0.35A

2.5A

	Maximum Voltage Maximum Voltage

500V AC

250V DC

500V DC

	Mounting Location Mounting Location

Panel

	Wattage Wattage

	Depth Behind Panel Depth Behind Panel

	Material Material

Plastic

Brass

	Industry Designation Industry Designation

	Maximum Resistance Maximum Resistance

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

DFARS Specialty Metals
COTS-Exempt

	Switch Type Switch Type

Manual

Light

	Shaft Length Shaft Length

13/16"

1 1/2"

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

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18 Products

Choosing an Electrical Switch

Plastic

Rated NEMA 4X and 13, these potentiometers are protected from debris, washdowns, and oil/coolant spraying. Also known as variable output switches or rheostats, they vary electrical flow to control speed, volume, and light intensity.

					Actuator
Wattage @ Voltage	Max. Voltage	For Panel Cutout Dia.	Dp. Behind Panel	No. of Turns	Dia.	Material	Wire Connection Type	Environmental Rating	Specifications Met	Choose a Max. Resistance		Each
Plastic
2 W @ 120 V AC/ 2 W @ 24 V DC	500V AC/500V DC	7/8" (22 mm)	2 1/4"	1	1 1/8"	Plastic	Screw Terminals	NEMA 4X, NEMA 13, IP65	UL Listed, C-UL Listed, CE Marked	1 kilohms, 2.5 kilohms, 5 kilohms, 10 kilohms	000000	000000

Digital Potentiometers

More precise than analog potentiometers, these have a three-digit display that is easy to read. Also known as variable output switches or rheostats, they vary electrical flow to control speed, volume, and light intensity.

Rotary

Knob

Wattage	No. of Digits	No. of Turns	Dia.	For Panel Cutout Dia.	Dp. Behind Panel	Housing Material	Wire Connection Type	No. of Terminals	Choose a Max. Resistance, kilohms		Each
1.5 W @ 385 V AC	3	10	1 1/4"	1"	5/8"	Plastic	Solder Lugs	3	1, 5, 10	0000000	0000000

Rotary Switches

For 1/4" Panel Cutout Dia.

For 13/32" Panel Cutout Dia.

Control multiple devices with one switch. Turn the shaft to change switch positions. Each position closes a set of contacts per circuit, so you can select between multiple devices on one or more circuits.

Switches for 13/32" panel cutout diameter require a knob.

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

						Shaft
No. of Circuits Controlled	Switch Action	No. of Positions	No. of Terminals	Dp. Behind Panel	O'all Dia.	Lg.	Dia.			Each
Nickel-Plated Brass with Black Plastic Knob
With Solder Pin Terminals for 1/4" Panel Cutout Dia.
1	Stays Switched (Maintained)	8	9	1 1/16"	9/16"	13/16"	1/8"	2 A @ 125 V AC, 1 A @ 30 V DC	0000000	000000
2	Stays Switched (Maintained)	4	10	1 1/16"	9/16"	13/16"	1/8"	2 A @ 125 V AC, 1 A @ 30 V DC	0000000	00000
With Solder Turret Terminals for 1/4" Panel Cutout Dia.
1	Stays Switched (Maintained)	6	7	1"	9/16"	13/16"	1/8"	3 A @ 125 V AC, 2 A @ 30 V DC	0000000	00000
Plastic
With Solder Lugs for 13/32" Panel Cutout Dia.
1	Stays Switched (Maintained)	12	13	13/16"	1"	1 1/2"	1/4"	2.5 A @ 125 V AC, 0.35 A @ 125 V DC	00000000	00000
2	Stays Switched (Maintained)	6	14	13/16"	1"	1 1/2"	1/4"	2.5 A @ 125 V AC, 0.35 A @ 125 V DC	00000000	00000
3	Stays Switched (Maintained)	4	15	13/16"	1"	1 1/2"	1/4"	2.5 A @ 125 V AC, 0.35 A @ 125 V DC	00000000	00000
4	Stays Switched (Maintained)	3	16	13/16"	1"	1 1/2"	1/4"	2.5 A @ 125 V AC, 0.35 A @ 125 V DC	00000000	00000

22 mm Panel-Mount Knob Switches

Set these switches to either spring back (momentary) or stay switched (maintained). They're rated NEMA 4X, 13, and IP66.

Replace contact blocks (sold separately) or add additional contact blocks to control more circuits.

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

With Screw Terminals
No. of Circuits Controlled	Switch Starting Position	Switch Action	No. of Terminals	Industry Designation	Switching Current @ Voltage	Max. Voltage	Dia.	Dp. Behind Panel	For Max. No. of Contact Blocks	Environmental Rating	Specifications Met		Each
2 Position
2	2 Off (Normally Open)	Springs Back (Momentary), Stays Switched (Maintained)	4	DPST-NO	6 A @ 120 V AC, 3 A @ 24 V DC	250V DC 500V AC	13/16"	1 3/4"	4	NEMA 4X, NEMA 13, IP66	UL Listed, CSA Certified, CE Marked, CCC Marked	0000000	000000
2	1 Off (Normally Open) and 1 On (Normally Closed)	Springs Back (Momentary), Stays Switched (Maintained)	4	DPST-1NO/1NC	6 A @ 120 V AC, 3 A @ 24 V DC	250V DC 500V AC	13/16"	1 3/4"	4	NEMA 4X, NEMA 13, IP66	UL Listed, CSA Certified, CE Marked, CCC Marked	0000000	00000
3 Position
3	3 Off (Normally Open)	Springs Back (Momentary), Stays Switched (Maintained)	6	3PST-NO	6 A @ 120 V AC, 3 A @ 24 V DC	250V DC 500V AC	13/16"	1 3/4"	6	NEMA 4X, NEMA 13, IP66	UL Listed, CSA Certified, CE Marked, CCC Marked	0000000	00000
3	2 Off (Normally Open) and 1 On (Normally Closed)	Springs Back (Momentary), Stays Switched (Maintained)	6	3PST-2NO/1NC	6 A @ 120 V AC, 3 A @ 24 V DC	250V DC 500V AC	13/16"	1 3/4"	6	NEMA 4X, NEMA 13, IP66	UL Listed, CSA Certified, CE Marked, CCC Marked	0000000	00000

Contact Blocks

No. of Circuits Controlled	Switch Starting Position	No. of Terminals	Industry Designation	Environmental Rating	Specifications Met		Each
1	1 Off (Normally Open)	2	SPST-NO	IP20	UL Listed, UL 508, CSA Certified, CE Marked	0000000	000000
1	1 On (Normally Closed)	2	SPST-NC	IP20	UL Listed, UL 508, CSA Certified, CE Marked	0000000	00000

Light Dimmers

Rotary

Rotary with Wall Plate

Adjust the brightness of lights.

Rotary
For Bulb Type	No. of Circuits Controlled	No. of Terminals	Input Voltage	Wattage	Wire Connection Type	Choose a Color		Each
Incandescent, Halogen	1	2	120V AC	600W	Wire Leads	White/Ivory	0000000	000000
Rotary with Wall Plate
Incandescent	1	2	120V AC	1,500W	Wire Leads	Beige, White	0000000	000000
Incandescent	1	2	120V AC	2,000W	Wire Leads	Beige, White	0000000	000000

Choosing an Electrical Switch

Harsh Environment Potentiometers

Digital Potentiometers

Rotary Switches

22 mm Panel-Mount Knob Switches

Light Dimmers