025490_S_000 Pressure Switches

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Pressure Set Point

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17 Products

Pressure Switches for Air Compressors

Maintain the air pressure needed for air-powered devices. These switches turn your electric air compressor off when it reaches the set pressure and on when it reaches the reset pressure. All are NEMA rated to protect their parts from dirt and stand up to some corrosion, but they shouldn’t be used outdoors. UL listed and CSA certified, all meet American and Canadian safety standards. Those that are CE marked meet European safety standards.

Pressure Switches

Polypropylene Housing—Switches with plastic housing stand up to corrosion.

		Reset Point, psi							Max. Horsepower
	Pressure Set Point Range, psi	Min.	Max.	Approx. Difference Between Set Point and Reset Point, psi	Max. Continuous Pressure, psi	Accuracy	Process Temp. Range, ° F	Connection Material	AC (Single Phase)	AC (Three Phase)	DC	Wire Connection	Enclosure Rating		Each
Polypropylene Housing—1/4 NPSF Female Pipe



		20 to 80	5	60	22	80	±3%	-20 to 255	Zinc-Plated Steel	2 hp @ 115V AC 3 hp @ 230V AC	3 hp @ 115V AC 5 hp @ 230V AC	1 hp @ 115V DC 1 hp @ 230V DC	Screw Terminal	NEMA 1	0000000	000000


		40 to 100	20	80	20	100	±3%	-20 to 255	Zinc-Plated Steel	1 1/2 hp @ 115V AC 2 hp @ 230V AC	2 hp @ 115V AC 3 hp @ 230V AC	—	Screw Terminal	NEMA 1	0000000	00000
		60 to 200	40	170	30	200	±3%	-20 to 255	Zinc-Plated Steel	2 hp @ 115V AC 3 hp @ 230V AC	3 hp @ 115V AC 5 hp @ 230V AC	1 hp @ 115V DC 1 hp @ 230V DC	Screw Terminal	NEMA 1	0000000	00000
		100 to 200	60	160	40	200	±3%	-20 to 255	Zinc-Plated Steel	1 1/2 hp @ 115V AC 2 hp @ 230V AC	2 hp @ 115V AC 3 hp @ 230V AC	—	Screw Terminal	NEMA 1	0000000	00000

Pressure Switches with Air Exhaust Valve

Switches with an air exhaust valve release the air between the cylinder and check valve when the compressor shuts off, reducing stress on the compressor’s motor. This extends the life of the motor and makes for an easier startup each time.

Polypropylene Housing—Switches with plastic housing stand up to corrosion.

		Reset Point, psi							Max. Horsepower
	Pressure Set Point Range, psi	Min.	Max.	Approx. Difference Between Set Point and Reset Point, psi	Max. Continuous Pressure, psi	Accuracy	Process Temp. Range, ° F	Connection Material	AC (Single Phase)	AC (Three Phase)	DC	Wire Connection	Enclosure Rating		Each
Polypropylene Housing—1/4 NPSF Female Pipe



		20 to 80	5	60	22	80	±3%	-20 to 255	Zinc-Plated Steel	2 hp @ 115V AC 3 hp @ 230V AC	3 hp @ 115V AC 5 hp @ 230V AC	1 hp @ 115V DC 1 hp @ 230V DC	Screw Terminal	NEMA 1	0000000	0000000


		40 to 100	20	80	20	100	±3%	-20 to 255	Zinc-Plated Steel	1 1/2 hp @ 115V AC 2 hp @ 230V AC	2 hp @ 115V AC 3 hp @ 230V AC	—	Screw Terminal	NEMA 1	0000000	00000
		60 to 200	40	170	30	200	±3%	-20 to 255	Zinc-Plated Steel	2 hp @ 115V AC 3 hp @ 230V AC	3 hp @ 115V AC 5 hp @ 230V AC	1 hp @ 115V DC 1 hp @ 230V DC	Screw Terminal	NEMA 1	0000000	000000
		100 to 200	60	160	40	200	±3%	-20 to 255	Zinc-Plated Steel	1 1/2 hp @ 115V AC 2 hp @ 230V AC	2 hp @ 115V AC 3 hp @ 230V AC	—	Screw Terminal	NEMA 1	0000000	00000

Pressure Switches for Water Pumps

Pressure Switches with

Manual On/Off Lever

Activate or deactivate your electric water pump based on water pressure. These switches turn your pump off when pressure increases to the set pressure and on when pressure drops to the reset pressure. All are NEMA rated to stand up to some corrosion, but they shouldn’t be used outdoors. UL listed and CSA certified, switches meet American and Canadian safety standards.

Low-Pressure Cutoff—Switches with low-pressure cutoff turn your pump off if water pressure dips 10 psi lower than the reset pressure. This stops the system from pumping when there’s an issue in your line, such as a leak or break, to avoid flooding or other damage. These switches will also resume pump control with their previous setpoints when turned back on.

Pressure Switches with Manual On/Off Lever—Use switches with a manual on/off lever to turn off your system for maintenance or for long periods of time. When you turn them back on, they’ll resume pump control and remember their pressure setpoints.

Pressure Switches with Pressure Surge Protection—Switches with pressure surge protection won’t activate during brief periods of high pressure. They’re often used in systems that have frequent pressure spikes.

						Max. Horsepower
	Pressure Set Point Range, psi	Reset Point, psi	Approx. Difference Between Set Point and Reset Point, psi	Max. Continuous Pressure, psi	Accuracy	AC (Single Phase)	AC (Three Phase)	DC	Wire Connection	Enclosure Rating		Each
Pressure Switches with Manual On/Off Lever







				1/4 NPSF Female Pipe

				20 to 65	5 to 45	20	65	±3%	1 1/2 hp @ 120V AC 2 hp @ 240V AC	2 hp @ 120V AC 3 hp @ 240V AC	—	Screw Terminal	NEMA 1	00000000	000000


				25 to 80	5 to 60	20	80	±3%	2 hp @ 120V AC 3 hp @ 240V AC	3 hp @ 120V AC 5 hp @ 240V AC	1/2 hp @ 120V DC 1/2 hp @ 240V DC	Screw Terminal	NEMA 1	00000000	00000


				Pressure Switches with Manual On/Off Lever and Low-Pressure Cutoff







								1/4 NPSF Female Pipe

								20 to 65	5 to 45	20	65	±3%	1 1/2 hp @ 120V AC 2 hp @ 240V AC	2 hp @ 120V AC 3 hp @ 240V AC	1/4 hp @ 240V AC 1/4 hp @ 120V DC	Screw Terminal	NEMA 1	00000000	00000


								Pressure Switches with Pressure Surge Protection







												1/4 NPSF Female Pipe

												20 to 65	5 to 45	20	65	±3%	1 1/2 hp @ 120V AC 2 hp @ 240V AC	2 hp @ 120V AC 3 hp @ 240V AC	—	Screw Terminal	NEMA 1	00000000	00000

Multiport Pressure Switches for Air Compressors


Pressure Switches with Air Exhaust Valve	Pressure Switches with Air Exhaust Valve and Manual On/Off

With multiple ports, these switches maintain the air pressure of your electric air compressor, while also including ports for up to three air-powered devices, reducing the complexity of your air system setup. These switches turn off the compressor when it reaches the set pressure and on when the pressure drops to the reset point. They have an air exhaust valve, so when they shut off, they automatically release air between the compressor’s cylinder and check valve. This reduces stress on the motor to extend its life and makes for easier startups. All are NEMA rated to protect from dirt and stand up to some corrosion, but they shouldn’t be used outdoors. UL listed, CSA certified, and CE marked, they meet American, Canadian, and European safety standards.

Manual On/Off Lever—Switches with a manual on/off lever let you turn off your system for maintenance or extended periods of time. When you flip the lever back on, the switch will automatically have the setpoint and reset point from its last use.

						Max. Horsepower
	Pressure Set Point Range, psi	Reset Point, psi	Approx. Difference Between Set Point and Reset Point, psi	Max. Continuous Pressure, psi	Accuracy	AC (Single Phase)	AC (Three Phase)	DC	Wire Connection	Enclosure Rating		Each
Pressure Switches with Air Exhaust Valve







				1/4 NPSC Pipe

				70 to 150	40 to 120	30	150	±3%	1 1/2 hp @ 120V AC 2 hp @ 240V AC	2 hp @ 120V AC 3 hp @ 240V AC	1/4 hp @ 120V DC 1/4 hp @ 240V DC	Screw Terminal	NEMA 1	0000000	000000


				100 to 200	60 to 160	40	200	±3%	1 1/2 hp @ 120V AC 2 hp @ 240V AC	2 hp @ 120V AC 3 hp @ 240V AC	1/4 hp @ 120V DC 1/4 hp @ 240V DC	Screw Terminal	NEMA 1	0000000	00000


				Pressure Switches with Air Exhaust Valve and Manual On/Off







								1/4 NPSC Pipe

								70 to 150	40 to 120	30	150	±3%	1 1/2 hp @ 120V AC 2 hp @ 240V AC	2 hp @ 120V AC 3 hp @ 240V AC	1/4 hp @ 120V DC 1/4 hp @ 240V DC	Screw Terminal	NEMA 1	0000000	00000


								100 to 200	60 to 160	40	200	±3%	1 1/2 hp @ 120V AC 2 hp @ 240V AC	2 hp @ 120V AC 3 hp @ 240V AC	1/4 hp @ 120V DC 1/4 hp @ 240V DC	Screw Terminal	NEMA 1	0000000	00000

Pipe Plugs