Adjustable Pressure Switches

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	For Use With For Use With

Air

Water

Hydraulic Fluid

Diesel Fuel

Oxygen

	Maximum Setpoint Maximum Setpoint

	Pipe Size Pipe Size

1/8

1/4

1/2

	Operates On Operates On

Pressure

Vacuum

	Minimum Setpoint Minimum Setpoint

	Maximum Pressure Maximum Pressure

	Switching Voltage Switching Voltage

120V AC

240V AC

480V AC

	Scale Scale

in. of Hg

psi

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

1 On (Normally Closed)

	Wire Connection Type Wire Connection Type

Screw Terminals

Quick-Disconnect Terminals

Spade Terminals

Wire Leads

	Maximum Process Temperature Maximum Process Temperature

	Environment Environment

	Environmental Rating Environmental Rating

	Maximum Environment Temperature Maximum Environment Temperature

	Housing Material Housing Material

Brass

Aluminum

Plastic

	Minimum Environment Temperature Minimum Environment Temperature

-20° F

0° F

	Minimum Process Temperature Minimum Process Temperature

-20° F

0° F

	Gender Gender

Male

Female

	Gasket Material Gasket Material

Rubber

Stainless Steel

	Switching Current Switching Current

10A

	Connection Material Connection Material

Brass

Stainless Steel

Aluminum

	Height Height

	Width Width

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49 Products

About Pressure Switches

For Use With: Air, Diesel Fuel, Hydraulic Fluid, Water
Connection Material: Brass
Connection: NPT Male
Switching Current: 10A
Switching Voltage: 120V AC/240V AC

These switches can handle higher temperatures than other medium-pressure switches. They electrically activate automated controls or alarms when a set pressure is reached. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

					Temperature Range, °F
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	Specifications Met		Each
Brass Housing
2-10	0.9	250	±5%	1/8	0° to 225°	0° to 225°	UL Recognized	0000000	000000
6-30	2.5	250	±5%	1/8	0° to 225°	0° to 225°	UL Recognized	0000000	00000
20-120	10	250	±5%	1/8	0° to 225°	0° to 225°	UL Recognized	0000000	00000

Easy-Adjust Medium-Pressure Switches

For Use With: Air, Diesel Fuel, Hydraulic Fluid, Water
Connection Material: Brass
Connection: NPT Male
Switching Current: 5A
Switching Voltage: 120V AC/240V AC

Change your setpoint with a twist of the outer ring. Switches electrically activate automated controls or alarms when a set pressure is reached. They are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC). Switches are rated NEMA 1 for indoor use.

					Temperature Range, °F
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	Specifications Met		Each
Brass and Polysulfone Plastic Housing
2 1/2-15	1.5	1,000	±2%	1/4	0° to 165°	0° to 165°	UL Recognized	0000000	0000000
5-35	3	1,000	±2%	1/4	0° to 165°	0° to 165°	UL Recognized	00000000	000000
8 1/2-50	4	1,000	±2%	1/4	0° to 165°	0° to 165°	UL Recognized	00000000	000000
22 1/2-125	8	1,000	±2%	1/4	0° to 165°	0° to 165°	UL Recognized	00000000	000000
70-250	22	1,000	±2%	1/4	0° to 165°	0° to 165°	UL Recognized	00000000	000000
110-500	42	1,000	±2%	1/4	0° to 165°	0° to 165°	UL Recognized	00000000	000000

Medium-Pressure Switches

For Use With:
Style A: Air, Diesel Fuel, Hydraulic Fluid, Water
Style B: Air, Hydrualic Fluid (Petroleum Based)
Connection Material: See table
Connection: NPT Male
Switching Current:
Style A: 10A
Style B: 15A
Switching Voltage:
Style A: 120V AC/240V AC
Style B: 120V AC/240V AC/480V AC

These medium-pressure switches electrically activate automated controls or alarms when a set pressure is reached. They are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC). Switches are rated NEMA 1 for indoor use.

						Temperature Range, °F
	Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	Specifications Met		Each
Brass Connection
A	10-250	10	250	±2%	1/2	-20° to 165°	-20° to 165°	CSA Certified, UL Recognized	00000000	0000000

High-Pressure Switches

For Use With: Air, Water
Connection Material: Brass
Connection: NPT Male
Switching Current: 5A
Switching Voltage: 120V AC/240V AC

Designed for high-pressure applications, these switches electrically activate automated controls or alarms when a set pressure is reached. They are often used in pump and hydraulic power applications. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC). Switches are rated NEMA 1 for indoor use.

					Temperature Range, °F
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	Ht.	Specifications Met		Each
Aluminum Housing
4-50	3.5	1,000	±1.5%	1/8	0° to 160°	0° to 200°	2 3/4"	CE Marked, CSA Certified, UL Recognized	0000000	000000
10-150	6	1,500	±1.5%	1/8	0° to 160°	0° to 200°	2 3/4"	CE Marked, CSA Certified, UL Recognized	000000	00000
30-600	34	2,500	±1.5%	1/8	0° to 160°	0° to 200°	2 3/4"	CE Marked, CSA Certified, UL Recognized	000000	00000
100-1,500	120	8,000	±1.5%	1/4	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	0000000	00000
180-3,000	225	8,000	±1.5%	1/4	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	000000	00000
400-4,700	350	8,000	±1.5%	1/4	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	0000000	00000
4,000-7,500	675	10,000	±1.5%	1/4	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	0000000	00000

Low-Pressure Switches

For Use With:
Style A: Air, Diesel Fuel, Hydraulic Fluid, Water
Style B: Air, Hydraulic Fluid (Petroleum Based)
Connection Material: See table
Connection: NPT Male
Switching Current:
Style A: 10A
Style B: 15A
Switching Voltage:
Style A: 120V AC/240V AC
Style B: 120V AC/240V AC/480V AC

Sensitive to low pressures, these switches electrically activate automated controls or alarms when a set pressure is reached. They are often used in heating and ventilation systems. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC). Switches are rated NEMA 1 for indoor use.

						Temperature Range, °F
	Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	Specifications Met		Each
Brass Connection
A	1/2-15	0.65	15	±2%	1/2	-20° to 165°	-20° to 165°	CSA Certified, UL Recognized	00000000	0000000
A	3-90	4	90	±2%	1/2	-20° to 165°	-20° to 165°	CSA Certified, UL Recognized	00000000	000000

Washdown Medium-Pressure Switches with Digital Display

For Use With: Air, Hydraulic Fluid, Water
Connection Material: 316 Stainless Steel
Connection: NPT Male
Switching Current: 10A
Switching Voltage: 240V AC

Switches have a digital display for easy monitoring at the source of your application. Set the LED to show your pressure, setpoint, or reset point. Switches electrically activate automated controls or alarms when a set pressure is reached. They are rated NEMA 4X for protection from dirt, washdowns, and corrosion. They are single pole, double throw (SPDT), so they switch one circuit on and off. They can be wired normally open (NO) or normally closed (NC).

						Temperature Range, °F		Conduit
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Input Voltage	Pipe Size	Environment	Process	For Trade Size	Connection	Digit Ht.		Each
Epoxy-Coated Aluminum Housing
3-60	28	120	±0.5%	110V AC	1/4	-20° to 180°	-20° to 180°	3/4	NPT Female	1/2"	0000000	0000000
5-100	47	200	±0.5%	110V AC	1/4	-20° to 180°	-20° to 180°	3/4	NPT Female	1/2"	0000000	000000
10-200	95	400	±0.5%	110V AC	1/4	-20° to 180°	-20° to 180°	3/4	NPT Female	1/2"	0000000	000000

Easy-Adjust Washdown Medium-Pressure Switches

For Use With: Air, Diesel Fuel, Hydraulic Fluid, Water
Connection Material: Brass
Connection: NPT Male
Switching Current: 5A
Switching Voltage: 120V AC/240V AC

Change your setpoint with a twist of the outer ring. These switches are rated NEMA 4 for protection from dirt and washdowns. They electrically activate automated controls or alarms when a set pressure is reached. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

					Temperature Range, °F		Conduit
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	For Trade Size	Connection	Specifications Met		Each
Brass and Polysulfone Plastic Housing
2 1/2-15	1.5	1,000	±2%	1/4	0° to 165°	0° to 165°	1/2	NPT Male	UL Listed	00000000	0000000
5-35	3	1,000	±2%	1/4	0° to 165°	0° to 165°	1/2	NPT Male	UL Listed	00000000	000000
8 1/2-50	4	1,000	±2%	1/4	0° to 165°	0° to 165°	1/2	NPT Male	UL Listed	00000000	000000
22 1/2-125	8	1,000	±2%	1/4	0° to 165°	0° to 165°	1/2	NPT Male	UL Listed	00000000	000000
70-250	22	1,000	±2%	1/4	0° to 165°	0° to 165°	1/2	NPT Male	UL Listed	00000000	000000
110-500	42	1,000	±2%	1/4	0° to 165°	0° to 165°	1/2	NPT Male	UL Listed	00000000	000000

Compact Washdown High-Pressure Switches

For Use With: See table
Connection Material: Brass
Connection: NPT Male
Switching Current: 5A
Switching Voltage: 120V AC/240V AC

At only 1 1/4" wide, these compact switches are a good fit for cramped spaces. They are often used in pump and hydraulic power applications. Switches electrically activate automated controls or alarms when a set pressure is reached. They are rated NEMA 4 for protection from dirt and washdowns. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

					Temperature Range, °F
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	Ht.	Specifications Met		Each
For Use With Air and Water
Aluminum Housing
4-50	3.5	1,000	±1.5%	1/8	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	0000000	0000000
10-150	6	1,500	±1.5%	1/8	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	000000	000000
30-600	34	2,500	±1.5%	1/8	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	000000	000000
100-1,500	120	8,000	±1.5%	1/4	0° to 160°	0° to 200°	3"	CE Marked, CSA Certified, UL Recognized	0000000	000000
180-3,000	225	8,000	±1.5%	1/4	0° to 160°	0° to 200°	3"	CE Marked, CSA Certified, UL Recognized	000000	000000
400-4,700	350	8,000	±1.5%	1/4	0° to 160°	0° to 200°	3"	CE Marked, CSA Certified, UL Recognized	0000000	000000
4,000-7,500	675	10,000	±1.5%	1/4	0° to 160°	0° to 200°	3"	CE Marked, CSA Certified, UL Recognized	0000000	000000
For Use With Oxygen
Aluminum Housing
4-50	3.5	1,000	±1.5%	1/8	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	0000000	000000
10-150	6	1,500	±1.5%	1/8	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	0000000	000000
30-600	34	2,500	±1.5%	1/8	0° to 160°	0° to 200°	2 7/8"	CE Marked, CSA Certified, UL Recognized	0000000	000000

Washdown High-Pressure Switches with Digital Display

For Use With: Air, Hydraulic Fluid, Water
Connection Material: 316 Stainless Steel
Connection: NPT Male
Switching Current: 10A
Switching Voltage: 240V AC

Not only are these switches sensitive to high pressures, they have a digital display for easy monitoring at the source of your application. Set the LED to show your pressure, setpoint, or reset point. The difference between setpoint and reset point is adjustable so you can set it anywhere within the setpoint range. Switches electrically activate automated controls or alarms when a set pressure is reached. They are rated NEMA 4X for protection from dirt, washdowns, and corrosion. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

						Temperature Range, °F		Conduit
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point	Max. Pressure, psi	Accuracy	Input Voltage	Pipe Size	Environment	Process	For Trade Size	Connection	Digit Ht.		Each
Epoxy-Coated Aluminum Housing
150-3,000	Adjustable	4,500	±0.5%	110V AC	1/4	-20° to 180°	-20° to 180°	3/4	NPT Female	1/2"	0000000	0000000

Washdown Low-Pressure Switches

These switches are rated NEMA 4 or 4X for protection from dirt and washdowns. Sensitive to low pressures, they electrically activate automated controls or alarms when a set pressure is reached. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

For Washdown Environments (NEMA 4)

For Use With: Air, Diesel Fuel, Hydraulic Fluid, Water
Connection Material:
Style A: Brass
Style B: 304 Stainless Steel
Connection:
Style A: 1/2 NPT Male
Style B: 1/4 NPT Female
Switching Current: 10A
Switching Voltage: 120V AC/240V AC

					Temp. Range, °F		Conduit
Style	Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Environment	Process	For Trade Size	Connection	Housing Material	Industry Designation	Specifications Met		Each
A	1/2-15	0.65	15	±2%	-20° to 165°	-20° to 165°	1/2	NPT Female	Aluminum	SPDT	CSA Certified, UL Listed	00000000	0000000
A	3-90	4	90	±2%	-20° to 165°	-20° to 165°	1/2	NPT Female	Aluminum	SPDT	CSA Certified, UL Listed	00000000	000000

Oil-Resistant High-Pressure Switches

For Use With: Air, Diesel Fuel, Hydraulic Fluid, Water
Connection Material: 416 Stainless Steel
Connection: NPT Female
Switching Current: 10A
Switching Voltage: 120V AC/240V AC/480V AC

Often used with hydraulic presses, compactors, and machine tools, these switches are rated NEMA 13 for indoor protection from dirt and oil/coolant spraying. Switches electrically activate automated controls or alarms when a set pressure is reached. They are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

					Temperature Range, °F		Conduit
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	For Trade Size	Connection		Each
Aluminum Housing
100-1,500	65	1,500	±2%	1/4	-20° to 165°	-20° to 165°	1/2	NPT Female	0000000	0000000
235-3,400	180	3,400	±2%	1/4	-20° to 165°	-20° to 165°	1/2	NPT Female	0000000	000000
425-6,000	240	6,000	±2%	1/4	-20° to 165°	-20° to 165°	1/2	NPT Female	0000000	000000

Oil-Resistant Medium-Pressure Switches

For Use With: Air, Diesel Fuel, Hydraulic Fluid, Water
Connection Material: 416 Stainless Steel
Connection: NPT Female
Switching Current: 10A
Switching Voltage: 120V AC/240V AC/480V AC

					Temperature Range, °F		Conduit
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	For Trade Size	Connection		Each
Aluminum Housing
20-200	12	200	±2%	1/4	-20° to 165°	-20° to 165°	1/2	NPT Female	0000000	0000000
75-540	22	540	±2%	1/4	-20° to 165°	-20° to 165°	1/2	NPT Female	0000000	000000

Easy-Adjust Vacuum Switches

Connection Material: Brass
Connection: NPT Male
Switching Current: 5A
Switching Voltage: 120V AC/240V AC

Change your setpoint with a twist of the outer ring. Switches electrically activate automated controls or alarms when a set vacuum is reached. They are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC). Switches are rated NEMA 1 for indoor use.

					Temperature Range, °F
Setpoint, in. of Hg	Approximate Difference Between Setpoint and Reset Point, in. of Hg	Max. Vacuum, in. of Hg	Accuracy	Pipe Size	Environment	Process	Specifications Met		Each
Brass and Polysulfone Plastic Housing
30-1	4	30	±2%	1/4	0° to 165°	0° to 165°	UL Recognized	00000000	0000000

Easy-Adjust Washdown Vacuum Switches

Connection Material: Brass
Connection: NPT Male
Switching Current: 5A
Switching Voltage: 120V AC/240V AC

These switches are rated NEMA 4 for protection from dirt and washdowns. They electrically activate automated controls or alarms when a set vacuum is reached. Twist the outer ring to change your setpoint. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

					Temperature Range, °F
Setpoint, in. of Hg	Approximate Difference Between Setpoint and Reset Point, in. of Hg	Max. Vacuum, in. of Hg	Accuracy	Pipe Size	Environment	Process	Specifications Met		Each
Brass and Polysulfone Plastic Housing
30-1	4	30	±2%	1/4	0° to 165°	0° to 165°	UL Listed	00000000	0000000

Vacuum Switches

Connection: NPT Male
Switching Current:
Style A: 10A
Style B: 15A
Switching Voltage:
Style A: 120V AC/240V AC
Style B: 120V AC/240V AC/480V AC

These switches electrically activate automated controls or alarms when a set vacuum is reached. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC). Switches are rated NEMA 1 for indoor use.

						Temperature Range, °F
	Setpoint, in. of Hg	Approximate Difference Between Setpoint and Reset Point, in. of Hg	Max. Vacuum, in. of Hg	Accuracy	Pipe Size	Environment	Process	Specifications Met		Each
Nickel-Plated Aluminum Connection
A	30-1/2	1	30	±2%	1/2	-20° to 165°	-20° to 165°	CSA Certified, UL Recognized	00000000	0000000

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