E34743 Pressure Switches

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System of Measurement

Pressure Set Point

0 in. Hg to 30 in. Hg

4.5 in. H₂O to 30 in. H₂O

9 in. H₂O to 60 in. H₂O

15 in. H₂O to 100 in. H₂O

22.5 in. H₂O to 150 in. H₂O

2 1/4 psi to 15 psi

6 in. Hg to 24 in. Hg

For Use With

Operates On

Differential Pressure

Pressure

Vacuum

Maximum Continuous Pressure

Maximum Switching Current @ Voltage

Measurement Unit

Pounds per Square Inch

Pipe Size

Enclosure Rating

Thread Type

Environment

Approximate Difference Between Set Point and Reset Point

Wire Connection

Set Point Adjustability

Adjustable

Switch Starting Position

Fitting Connection

Gender

Housing Material

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Connection Material

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

UL File Number

REACH

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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21 Products

Pressure and Vacuum Switches

Because these switches work with both positive and negative (vacuum) pressures, you can use them in applications that span both. For example, these switches can turn on a light when they reach the setpoint to indicate which pressure is flowing. They’re also often used to trigger automated controls and activate alarms. These switches are single pole, double throw (SPDT) and can either turn one circuit from off to on or from on to off.

NEMA 4X and IP66 rated, they’re dust tight and protected from washdowns and corrosion. All are UL and C-UL listed, CSA and CSA-US certified, and CE marked, so they meet U.S., Canadian, and European safety standards.

For the Manufacturer User Manual, click on a part number and select Product Detail.

	Set Point
	Pressure, psi	Vacuum, in. Hg	Approx. Difference Between Set Point and Reset Point, psi	Max. Continuous Pressure, psi	Max. Short-Term Pressure, psi	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	For Use With	Enclosure Rating		Each
Screw-Terminal Wire Connection







				1/4 NPT Female

				0 to 15	0 to 30	1.5	15	250	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 250V DC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	3871N11	0000000


				0 to 30	0 to 30	2.25	30	250	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 250V DC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	3871N12	000000
				0 to 60	0 to 30	4	60	250	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 250V DC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	3871N13	000000

Manual-Reset Pressure Switches

Used as a safety control, these switches must be manually reset each time they hit the set pressure, so you can inspect equipment before it restarts. When pressure rises too high, they activate alarms or stop processes. Push the button on the top to reset. Switches are single pole, double throw (SPDT) and can be installed to turn one circuit from off to on (normally open) or from on to off (normally closed).

NEMA 4X and IP66 rated, these switches resist corrosion and seal out dust and water from washdowns and weather. All meet at least one American, Canadian, or European safety standard.

Screw-Terminal Wire Connection

Image of Product. Front orientation. Pressure Switches. Manual-Reset Pressure Switches.

	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	For Use With	Enclosure Rating	Certification		Each
1/4 Threaded NPT Female Pipe







	Internal Adjustment

	2 1/4 to 15	15	500	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N11	0000000


	4 1/2 to 30	30	500	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N12	000000
	9 to 60	60	500	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N13	000000
	15 to 100	100	1,000	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N14	000000
	30 to 200	200	1,000	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N15	000000
	60 to 400	400	2,400	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N16	000000
	90 to 600	600	2,400	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N17	000000
	150 to 1,000	1,000	12,000	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N18	000000
	450 to 3,000	3,000	12,000	±1%	15 amp @ 125V AC 15 amp @ 250V AC	20 to 300	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	IP66, NEMA 4X	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, UL Listed	9250N19	000000

Differential Pressure Switches for Liquids

Detect the difference in pressure between two points. For instance, these switches can indicate a filter is clogged in a pump or cooling system. When the differential pressure reaches your setpoint, they turn equipment on and off, activate automated controls, or signal alarms. They are single pole, double throw (SPDT) and can be installed to turn one circuit from off to on or from on to off. All meet at least one safety standard.

NEMA 4X Enclosure Rating—NEMA 4X rated switches can be used in dirty and wet areas exposed to washdowns and weather. They also have increased protection against corrosion, similar to 304 stainless steel.

NEMA 13 Enclosure Rating— NEMA 13 rated switches can be used in dirty, wet, and oily areas.

IP66 Enclosure Rating— IP66 rated switches protect against dust and washdowns.

	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	For Use With	Certification		Each
Screw Terminal—1/4 NPT Female Pipe Connection







	NEMA 4X Enclosure Rating, NEMA 13 Enclosure Rating, IP66 Enclosure Rating

	4.5 in. H₂O to 30 in. H₂O	2 in. H₂O	5.4	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Steel	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N11	0000000


	9 in. H₂O to 60 in. H₂O	2.5 in. H₂O	5.4	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Steel	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N12	000000
	15 in. H₂O to 100 in. H₂O	4 in. H₂O	5.4	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Steel	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N13	000000
	22.5 in. H₂O to 150 in. H₂O	6.5 in. H₂O	5.4	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Steel	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N14	000000
	2.25 psi to 15 psi	3.5 psi	500	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Brass	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N15	000000
	4.5 psi to 30 psi	3.5 psi	500	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Brass	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N16	000000
	9 psi to 60 psi	4.5 psi	500	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Brass	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N17	000000
	15 psi to 100 psi	15.5 psi	1,000	±1%	15 amp @ 125V AC 15 amp @ 250V AC 15 amp @ 480V AC 6 amp @ 30V DC 500 mA @ 125V DC 250 mA @ 240V DC	0 to 150	Brass	Diesel Fuel, Gasoline, Hydraulic Fluid, Oil, Water	C-UL Listed, CE Marked, CSA Certified, CSA-US Certified, FM Approved, UL Listed	4518N18	000000

Adjustable-Reset Vacuum Switches

Control the amount of vacuum change between when these switches activate and deactivate by adjusting when they reset. Also known as adjustable deadband and differential switches, you can set the reset point anywhere within the setpoint range. Use them to power equipment, signal controls, or trigger alarms when they reach the set vacuum. They’re single pole, double throw (SPDT) and can either turn one circuit from off to on (normally open) or on to off (normally closed). All meet safety standards.

All protect against some corrosion.

NEMA 4X Enclosure Rating—NEMA 4X rated switches can be used in dirty and wet areas exposed to washdowns. They also stand up to weather and have increased protection against corrosion, similar to 304 stainless steel.

IP66 Enclosure Rating—IP66 rated switches can be used in dirty and wet areas exposed to washdowns.

	Max. Short-Term Pressure, psi	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	For Use With	Enclosure Rating		Each
Screw-Terminal







	1/4 NPT Female Pipe Connection

	6 to 24	Adjustable	11.7	250	±1%	10 amp @ 125V AC 10 amp @ 250V AC 250 mA @ 250V AC 500 mA @ 125V DC	20 to 300	316L Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Water	NEMA 4X, IP66	8015N11	0000000