Linear Potentiometers | McMaster-Carr

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27 Products

Linear Motion Potentiometers

Pair these potentiometers with a controller to monitor the position of moving parts or send instructions to an electrical system. They have a rod that slides back and forth against an internal resistor, which increases or decreases the voltage flowing out to your controller. To monitor the position of a moving part, such as a robotic component, connect it to the rod. As the part moves, it pushes the rod back and forth, which allows the controller to observe and report the part’s exact position. To use these potentiometers as part of a controls system, connect them to a volume slider or other manual control. When you move the slider, the controller converts its position into instructions for electrical equipment, such as adjusting volume levels. These potentiometers are also called variable output switches.

Lg.						Rod						5 kohm Maximum Resistance		10 kohm Maximum Resistance
Stroke	Retracted	Extended	Wattage @ Voltage	Wd.	Ht.	Dia.	Thread Size	Material	Housing Material	Wire Connection	Enclosure Rating		Each		Each
5/32"	1.59"	1.74"	0.125 W @ 200V DC	1/4"	9/32"	1/16"	0-80	303 Stainless Steel	Plastic	Wire Leads	IP45	7625N11	000000	7625N12	000000
1/4"	1.59"	1.84"	0.125 W @ 200V DC	1/4"	9/32"	1/16"	0-80	303 Stainless Steel	Plastic	Wire Leads	IP45	7625N13	00000	7625N14	00000
1/2"	2.22"	2.72"	0.25 W @ 300V DC	9/32"	11/32"	3/32"	2-56	303 Stainless Steel	Plastic	Wire Leads	IP45	7625N15	00000	7625N16	00000

Linear Position Sensors


Style 1	Style 2	Style 3	Style 4

Styles 1-4

4-Pole

M12

Plug

5-Pole

M12

Plug

Track the position of hydraulic cylinders and other components that move in a straight line. Like a tape measure, these sensors have a wire that extends to measure how far components have traveled from a set point. Because of the wire, they're also known as string pots—short for string potentiometers. They convert measurements to an electrical signal, which can then be used to trigger automated actions in your process.

Plug In—Sensors with a plug are quicker to connect and disconnect than those with wire leads. Plug them into a cable with a socket (sold separately).

IP67 Enclosure Rating—All are IP rated for some protection from dust. Sensors rated IP67 seal out water when briefly submersed.

	Sensors																		Cables with Socket
											Overall			Mounting Holes
	Stroke Lg.	Percentage Accuracy Range	Repeatability Percentage Range	Max. Input Voltage	Input Resistance, kohm	Output Signal	Housing Material	Enclosure Rating	Wire Lead Lg.	Eyelet ID	Lg.	Wd.	Ht.	Ctr.-to-Ctr.	Dia.	No. of		Each		Each
Style 1







				Wire Leads

				4 3/4"	-1% to 1%	-0.05% to 0.05%	30V AC 30V DC	10	0-28.2V AC 0-28.2V DC	Plastic	IP50	40"	0.191"	3.1"	1.9"	2.6"	(A) 1.4"	1/8"	2	6863K1	0000000	———	0


				12 1/2"	-0.25% to 0.25%	-0.05% to 0.05%	30V AC 30V DC	10	0-28.2V AC 0-28.2V DC	Plastic	IP50	40"	0.191"	3.1"	1.9"	2.6"	(A) 1.4"	1/8"	2	6863K2	000000	———	0
				25"	-0.25% to 0.25%	-0.05% to 0.05%	30V AC 30V DC	10	0-28.2V AC 0-28.2V DC	Plastic	IP50	40"	0.191"	3.1"	1.9"	2.6"	(A) 1.4"	1/8"	2	6863K3	000000	———	0
				50"	-0.25% to 0.25%	-0.05% to 0.05%	30V AC 30V DC	10	0-28.2V AC 0-28.2V DC	Plastic	IP50	40"	0.191"	3.1"	1.9"	2.6"	(A) 1.4"	1/8"	2	6863K4	000000	———	0


				Style 2







								Wire Leads

								120"	-0.35% to 0.35%	-0.05% to 0.05%	30V AC 30V DC	10	0-28.2V AC 0-28.2V DC	Plastic	IP67	40"	0.191"	2.48"	5.17"	5.09"	(A) 4 3/4" (B) 4.62" (C) 2.2"	7/32" 3/16" 3/16"	6	6863K5	000000	———	0




										With 4-Pole M12 Plug

										120"	-0.35% to 0.35%	-0.05% to 0.05%	30V AC 30V DC	10	0-28.2V AC 0-28.2V DC	Plastic	IP67	—	0.191"	2.48"	5.17"	5.09"	(A) 4 3/4" (B) 4.62" (C) 2.2"	7/32" 3/16" 3/16"	6	6863K103	000000	6897K36	000000


										Style 3







														With 5-Pole M12 Plug

														75"	-0.02% to 0.02%	-0.006% to 0.006%	32V DC	4.8	4 mA to 20 mA	Steel	IP64	—	0.197"	4.11"	3.11"	3.27"	(A) 0.98"	7/32"	2	6863K101	000000	6897K46	00000


														Style 4







																		With 5-Pole M12 Plug

																		118"	-0.012% to 0.012%	-0.005% to 0.005%	32V DC	4.8	4 mA to 20 mA	Steel	IP64	—	0.083"	3.61"	3.07"	3.58"	(A) 2.32" (B) 2.44"	3/16" 3/16"	8	6863K102	000000	6897K46	00000

Heavy Duty Light Dimmers

Slide Actuator

with Wall Plate

Often used with high-wattage lights, an external heat sink prevents these dimmers from overheating. They stick out from the wall _1/2 in. to help them disperse heat.

	No. of Circuits Controlled	No. of Terminals	Input Voltage, V AC	Wattage, W	Wire Connection	Features	Certification	Color		Each
Slide Actuator with Wall Plate



	Incandescent and Halogen	1	3	120	600	Wire Leads	Heat Sink	UL Listed	White	7083K51	000000


	Incandescent and Halogen	1	3	120	1,500	Wire Leads	Heat Sink	UL Listed	White	7083K53	000000
	Incandescent and Halogen	1	3	120	2,000	Wire Leads	Heat Sink	UL Listed	White	7083K54	000000

Plug-In Light Dimmers

Control the brightness of desk lamps and other plug-in lights without altering your switch or outlet. Just plug these dimmers into the wall, then plug your light into the dimmer. They work with most types of light bulbs—just make sure your bulb is dimmable.

							Electrical
	For Bulb Type	No. of Circuits Controlled	No. of Terminals	Input Voltage, V AC	Wattage	Wire Connection Type	Connection	No. of Blades	Certification	Choose a Color		Each
Slide Actuator



		Incandescent and Halogen or CFL and LED	1	2	120	300 W/150 W	Plug In	Straight Blade	2	UL Listed	Black, White	9559N13	000000

Light Dimmers


Toggle Switch Actuator with Mini Slide Dimmer	Rocker Switch Actuator with Slide Dimmer	Rocker Switch Actuator with Mini Slide Dimmer

Adjust the brightness of lights.

Toggle Switch Actuator with Mini Slide Dimmer, Rocker Switch Actuator with Slide Dimmer, and Rocker Switch Actuator with Mini Slide Dimmer—Slide dimmers include both a switch and a dimmer. Use them to turn lights on and off while maintaining your desired brightness level.

LED—Dimmers for LEDs only use the 0-10V dimming standard—pair them with 0-10V DC dimmable bulbs.

3-Way Switch—Three-way dimmers let you control the same circuit of lights from two locations, so they’re often used in large, open workspaces. Pair them with a 3-way on/off switch.

	Multi-Way Switch Type	No. of Circuits Controlled	No. of Terminals	Input Voltage, V AC	Wattage	Wire Connection	Certification	Includes	Choose a Color		Each
Toggle Switch Actuator with Mini Slide Dimmer



	Incandescent and Halogen or CFL and LED	3 Way	1	4	120	600 W/150 W	Screw Terminal	UL Listed	—	White	7083K56	000000


	Rocker Switch Actuator with Slide Dimmer



			Incandescent and Halogen or CFL and LED	3 Way	1	4	120	600 W/150 W	Wire Leads	UL Listed	—	White	7083K55	00000


			LED	3 Way	1	3	120	—	Wire Leads	UL Listed, C-UL Listed	—	Ivory, White	7083K316	00000


			Rocker Switch Actuator with Mini Slide Dimmer



					Incandescent and Halogen or CFL and LED	3 Way	1	3	120	600 W/300 W	Screw Terminal	CSA Certified, CSA-US Certified	Almond Wall Plate, Ivory Wall Plate	White	7083K317	00000


					Incandescent and Halogen or CFL and LED	3 Way	1	3	120	1,000 W/450 W	Wire Leads	CSA Certified, CSA-US Certified	Almond Wall Plate, Ivory Wall Plate	White	7083K318	00000
					Incandescent and Halogen or CFL and LED	3 Way	1	4	120	600 W/150 W	Wire Leads	UL Listed	—	White	7083K57	00000
					LED	3 Way	1	3	120	—	Wire Leads	UL Listed, C-UL Listed	—	Ivory, White	7083K315	00000