Adjustable Deadbands | McMaster-Carr

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About Pressure Switches

Compare different types of pressure switches and learn how they work.

Dual-Setpoint Electronic Pressure Switches with Digital Display


	4-Pole M12 Plug

When these switches reach either of their two set pressures—both of which can be controlled from the display—they send digital signals to your programmable logic controller (PLC) to activate automated controls. This means you could turn on a pump at one setpoint if pressure drops too low and open a valve at another if pressure rises too high. These switches could also be used to signal an alarm before switching off a pump. For remote control and monitoring from your PLC or PC, connect an IO Link controller (not included). You’ll also need to set one of the outputs to use IO Link instead of a PNP or NPN signal.

Change your setpoint, reset point, scaling, and other settings using the display’s buttons. An adjustable reset point means you can control the amount of pressure change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point. The head rotates, so you can view the display from the best angle. To reduce stress on pipes in your pressure system, secure these switches against a wall or other structure with a mounting bracket (sold separately). Use these switches with an M12 cable (sold separately) to quickly connect and disconnect them.

All are rated IP65 and IP67, so they seal out dust and water from washdowns and brief submersion. UL and C-UL listed, all meet U.S. and Canadian safety standards.

				Configurable Digital Output
	Pressure Set Point Range, psi	Approx. Difference Between Set Point and Reset Point	Max. Continuous Pressure, psi	Digital Signal	Control Communication Protocol	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	Measurement Unit	For Use With		Each
M12 Connection with 4 Poles







				1/4 NPT Male Pipe

				0 to 14	Adjustable	145	PNP, NPN	IO-Link	±0.2%	35 mA @ 30V DC	-10 to 175	316L Stainless Steel	Inches of Mercury, Kilopascals, Millibars, Pounds per Square Inch	Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water	3167K31	0000000


				0 to 36	Adjustable	290	PNP, NPN	IO-Link	±0.2%	35 mA @ 30V DC	-10 to 175	316L Stainless Steel	Bar, Kilopascals, Pounds per Square Inch	Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water	3167K32	000000
				0 to 360	Adjustable	1,015	PNP, NPN	IO-Link	±0.2%	35 mA @ 30V DC	-10 to 175	316L Stainless Steel	Bar, Kilopascals, Pounds per Square Inch	Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water	6360N11	000000
				0 to 1,450	Adjustable	1,810	PNP, NPN	IO-Link	±0.2%	35 mA @ 30V DC	-10 to 175	316L Stainless Steel	Bar, Kilopascals, Pounds per Square Inch	Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water	6360N12	000000
				0 to 3,600	Adjustable	7,250	PNP, NPN	IO-Link	±0.2%	35 mA @ 30V DC	-10 to 175	316L Stainless Steel	Bar, Kilopascals, Pounds per Square Inch	Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water	6360N13	000000
				0 to 5,800	Adjustable	11,580	PNP, NPN	IO-Link	±0.2%	35 mA @ 30V DC	-10 to 175	316L Stainless Steel	Bar, Kilopascals, Pounds per Square Inch	Air, Argon, Diesel Fuel, Hydraulic Fluid, Inert Gas, Nitrogen, Oil, Water	6360N14	000000

Accessories for Pressure Switches

		Length, mm
Plastic	Black	50	64	40	Yes	Straight	M5	55205K91	000000

	Voltage	Current, amp	Temp., ° F	Enclosure Rating


250V AC, 250V DC	4	0 to 220	IP67	6897K36	000000

Adjustable-Reset Pressure Switches with Digital Display

Kick off automated controls, signal alarms, or activate equipment based on pressure changes while checking the pressure, setpoint, and reset point on the display. The adjustable reset point lets you control the amount of pressure change, also known as deadband and differential, before the switch resets. Adjust it anywhere within the setpoint range. Turn the external adjustment knob by hand to set pressure quickly. These 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).

To power the display, these switches need a separate electrical input from the one used for switching.

These switches are IP and NEMA rated, so they’re dust tight and protected against water from washdowns and weather, as well as sprays of oil and coolant.

	Max. Short-Term Pressure, psi	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Wire Connection	Connection Material	For Use With	Enclosure Rating		Each
110V AC Input Voltage







	1/4 NPT Male Pipe

	3 to 60	Adjustable	60	120	±0.5%	10 amp @ 250V AC 30 amp @ 30V DC	-20 to 160	Screw Terminal	316 Stainless Steel	Air, Hydraulic Fluid, Water	IP66, NEMA 4X, NEMA 13	7564T21	0000000


	5 to 100	Adjustable	100	200	±0.5%	10 amp @ 250V AC 30 amp @ 30V DC	-20 to 160	Screw Terminal	316 Stainless Steel	Air, Hydraulic Fluid, Water	IP66, NEMA 4X, NEMA 13	7564T22	000000
	10 to 200	Adjustable	200	400	±0.5%	10 amp @ 250V AC 30 amp @ 30V DC	-20 to 160	Screw Terminal	316 Stainless Steel	Air, Hydraulic Fluid, Water	IP66, NEMA 4X, NEMA 13	7564T23	000000
	150 to 3,000	Adjustable	3,000	4,500	±0.5%	10 amp @ 250V AC 30 amp @ 30V DC	-20 to 160	Screw Terminal	316 Stainless Steel	Air, Hydraulic Fluid, Water	IP66, NEMA 4X, NEMA 13	7564T24	000000


	24V DC Input Voltage







					1/4 NPT Male Pipe

					10 to 200	Adjustable	200	400	±0.5%	10 amp @ 250V AC 30 amp @ 30V DC	-20 to 160	Screw Terminal	316 Stainless Steel	Air, Hydraulic Fluid, Water	IP66, NEMA 4X, NEMA 13	7564T25	000000

Electronic Pressure Switches for Compressed Air

With a set pressure range that works for most air systems, these switches send signals when your air system reaches a set pressure to your programmable logic controller (PLC) to activate automated controls and alarms. All meet at least one American, Canadian, or European safety standard.

Monitor your pressure on the display and change your setpoint, reset point, scaling, and other settings using the buttons. An adjustable reset point means you can control the amount of pressure change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point.

1 Configurable Output—Switches with a configurable output give you the flexibility to choose between PNP, NPN, or IO Link. IO Link lets you remotely control and monitor switches from your PLC or PC when you connect an IO Link controller (not included).

IP65 Enclosure Rating—IP65 rated switches protect from dust and light rinsing.

	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	Wire Connection	For Use With	Enclosure Rating		Each
PNP Output Signal







	1/8 NPT Male Threaded Pipe

	0 to 145	Adjustable	145	±0.2%	25 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Wire Leads	Air, Argon, Nitrogen	IP40	3167K18	000000




			1/4" Female Push to Connect Tube

			0 to 145	Adjustable	145	±0.2%	25 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Wire Leads	Air, Argon, Nitrogen	IP40	3167K21	00000


			NPN Output Signal







							1/8 NPT Male Threaded Pipe

							0 to 145	Adjustable	145	±0.2%	25 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Wire Leads	Air, Argon, Nitrogen	IP40	3167K17	00000




									1/4" Female Push to Connect Tube

									0 to 145	Adjustable	145	±0.2%	25 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Wire Leads	Air, Argon, Nitrogen	IP40	3167K19	00000


									1 Configurable Output—PNP, NPN, IO-Link







													1/8 NPT Male Threaded Pipe

													0 to 145	Adjustable	145	±0.2%	35 mA @ 30V DC	25 to 120	Nickel-Plated Brass	Wire Leads	Air, Argon, Nitrogen	IP65	3167K41	000000




															1/8 BSPT Male Threaded Pipe

															0 to 145	Adjustable	145	±0.2%	35 mA @ 30V DC	25 to 120	Nickel-Plated Brass	Wire Leads	Air, Argon, Nitrogen	IP65	3167K42	000000




																	M5 x 0.8 mm Female Pipe

																	0 to 145	Adjustable	145	±0.2%	35 mA @ 30V DC	25 to 120	Nickel-Plated Brass	Wire Leads	Air, Argon, Nitrogen	IP65	3167K44	000000

Square Panel-Mount Brackets

For Panel Cutout
1 7/32"	1 7/32"	Straight	3167K22	00000

Adjustable-Reset Pressure Switches

Choose when these switches reset to control the pressure range between when they activate and deactivate, commonly referred to as deadband and differential. You can adjust their reset point anywhere along the setpoint range. When they reach the set pressure, these switches power equipment, signal controls, or trigger alarms. They’re single pole, double throw (SPDT) and can either turn one device from off to on (normally open) or on to off (normally closed). UL listed and CSA certified, all meet American and Canadian safety standards. Those that are CE marked meet European safety standards. All protect against some corrosion.

Pressure Switches

IP66 Enclosure Rating and NEMA 4X Enclosure Rating—NEMA 4X and IP66 rated switches can be used in dirty and wet areas exposed to washdowns. NEMA 4X switches also stand up to weather and have increased protection against corrosion, similar to 304 stainless steel.

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







	1/4 NPT Female Pipe

	2 1/2 to 13	Adjustable	15	500	±1%	10 amp @ 125V AC 10 amp @ 250V AC 500 mA @ 125V DC 250 mA @ 250V DC	0 to 150	316 Stainless Steel	Air, Argon, Diesel Fuel, Gasoline, Inert Gas, Natural Gas, Nitrogen, Water	IP66, NEMA 4X	CE Marked, CSA Certified, FM Approved, UL Listed	6440N11	0000000


	3 to 27	Adjustable	30	500	±1%	10 amp @ 125V AC 10 amp @ 250V AC 500 mA @ 125V DC 250 mA @ 250V DC	0 to 150	316 Stainless Steel	Air, Argon, Diesel Fuel, Gasoline, Inert Gas, Natural Gas, Nitrogen, Water	IP66, NEMA 4X	CE Marked, CSA Certified, FM Approved, UL Listed	6440N12	000000
	5 to 54	Adjustable	60	500	±1%	10 amp @ 125V AC 10 amp @ 250V AC 500 mA @ 125V DC 250 mA @ 250V DC	0 to 150	316 Stainless Steel	Air, Argon, Diesel Fuel, Gasoline, Inert Gas, Natural Gas, Nitrogen, Water	IP66, NEMA 4X	CE Marked, CSA Certified, FM Approved, UL Listed	6440N13	000000
	10 to 90	Adjustable	100	1,000	±1%	10 amp @ 125V AC 10 amp @ 250V AC 500 mA @ 125V DC 250 mA @ 250V DC	0 to 150	316 Stainless Steel	Air, Argon, Diesel Fuel, Gasoline, Inert Gas, Natural Gas, Nitrogen, Water	IP66, NEMA 4X	CE Marked, CSA Certified, FM Approved, UL Listed	6440N14	000000
	18 to 180	Adjustable	200	1,000	±1%	10 amp @ 125V AC 10 amp @ 250V AC 500 mA @ 125V DC 250 mA @ 250V DC	0 to 150	316 Stainless Steel	Air, Argon, Diesel Fuel, Gasoline, Inert Gas, Natural Gas, Nitrogen, Water	IP66, NEMA 4X	CE Marked, CSA Certified, FM Approved, UL Listed	6440N15	000000
	45 to 360	Adjustable	400	2,400	±1%	10 amp @ 125V AC 10 amp @ 250V AC 500 mA @ 125V DC 250 mA @ 250V DC	0 to 150	316 Stainless Steel	Air, Argon, Diesel Fuel, Gasoline, Inert Gas, Natural Gas, Nitrogen, Water	IP66, NEMA 4X	CE Marked, CSA Certified, FM Approved, UL Listed	6440N16	000000
	75 to 540	Adjustable	600	2,400	±1%	10 amp @ 125V AC 10 amp @ 250V AC 500 mA @ 125V DC 250 mA @ 250V DC	0 to 150	316 Stainless Steel	Air, Argon, Diesel Fuel, Gasoline, Inert Gas, Natural Gas, Nitrogen, Water	IP66, NEMA 4X	CE Marked, CSA Certified, FM Approved, UL Listed	6440N17	000000

On/Off Indicator Pressure Switches

Switches with an on/off indicator tell you the status of your equipment, letting you monitor your equipment even when it’s out of sight.

NEMA 1 Enclosure Rating—NEMA 1 rated switches should only be used indoors.

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







	1/4 NPT Male Pipe

	1/8 to 15	Adjustable	15	15	±1%	10 amp @ 120V AC 10 amp @ 240V AC	35 to 180	Brass	Air, Diesel Fuel, Hydraulic Fluid, Water	NEMA 1	CSA Certified, UL Listed	4941K52	000000000


	2 to 60	Adjustable	60	60	±1%	10 amp @ 120V AC 10 amp @ 240V AC	35 to 180	Brass	Air, Diesel Fuel, Hydraulic Fluid, Water	NEMA 1	CSA Certified, UL Listed	4941K53	00000000
	5 to 100	Adjustable	100	100	±1%	10 amp @ 120V AC 10 amp @ 240V AC	35 to 180	Brass	Air, Diesel Fuel, Hydraulic Fluid, Water	NEMA 1	CSA Certified, UL Listed	4941K54	00000000
	5 to 150	Adjustable	150	150	±1%	10 amp @ 120V AC 10 amp @ 240V AC	35 to 180	Brass	Air, Diesel Fuel, Hydraulic Fluid, Water	NEMA 1	CSA Certified, UL Listed	4941K55	00000000
	10 to 200	Adjustable	200	200	±1%	10 amp @ 120V AC 10 amp @ 240V AC	35 to 180	Brass	Air, Diesel Fuel, Hydraulic Fluid, Water	NEMA 1	CSA Certified, UL Listed	4941K56	00000000
	10 to 300	Adjustable	300	300	±1%	10 amp @ 120V AC 10 amp @ 240V AC	35 to 180	Brass	Air, Diesel Fuel, Hydraulic Fluid, Water	NEMA 1	CSA Certified, UL Listed	4941K57	00000000

Dual-Setpoint Electronic Pressure Switches for Compressed Air

Compatible with most air systems, these switches send digital signals to a programmable logic controller (PLC) to trigger separate processes when they reach either of their two set pressures. For example, they’ll activate a compressor if the pressure is too low or a relief valve if the pressure is too high. Or use them to signal an alarm before switching off a compressor. Some of these switches also work with liquids and gases, so they can be built into hydraulic systems and wet or humid environments, such as cleaning lines.

Monitor your pressure on the display and change your setpoints, reset points, scaling, and other settings using the buttons. An adjustable reset point means you can control the amount of pressure change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point. Add a panel-mount bracket (sold separately) to mount these switches to a control panel for easy viewing and adjusting.

Rated IP65, they seal out dust and water from washdowns. Switches are UL and C-UL recognized components and CE marked to meet American, Canadian, and European safety standards.

Wire Lead Connection

Image of Product. Front orientation. Pressure Switches. Dual-Setpoint Electronic Pressure Switches for Compressed Air.

	Max. Short-Term Pressure, psi	Output Digital Signal	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	For Use With	Enclosure Rating	Certification		Each
1/8 Threaded NPT Male Pipe







	External Adjustment

	15 to 150	Adjustable	150	215	PNP	±0.2%	35 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Air, Argon, Inert Gas, Nitrogen	IP65	C-UL Recognized Component, CE Marked, UL Recognized Component	9330N11	0000000


	1/4 Threaded NPT Male Pipe







					External Adjustment

					15 to 150	Adjustable	150	290	PNP	±0.2%	35 mA @ 24V DC	25 to 120	304 Stainless Steel	Air, Argon, Hydraulic Fluid, Inert Gas, Nitrogen, Water	IP65	C-UL Recognized Component, CE Marked, UL Recognized Component	9330N12	000000


					15 to 300	Adjustable	300	580	PNP	±0.2%	35 mA @ 24V DC	25 to 120	304 Stainless Steel	Air, Argon, Hydraulic Fluid, Inert Gas, Nitrogen, Water	IP65	C-UL Recognized Component, CE Marked, UL Recognized Component	9330N13	000000

Square Panel-Mount Brackets

For Panel Cutout
1 7/32"	1 7/32"	Straight	3167K22	00000

Electronic Pressure Switches

When these switches reach a set pressure, they send electronic signals to your programmable logic controller (PLC) to activate automated controls or alarms. Easily adjust the setpoint by twisting the external ring. An indicating pointer and incremental markings make sure adjustments are precise. When you have your setpoint, tighten the locking ring to prevent unintentional changes. Pair these switches with an M12 socket to quickly connect and disconnect them.

Rated IP67, these switches seal out dust and water from temporary submersion. All are UL and C-UL listed as well as CE marked, which means they meet U.S., Canadian, and European safety standards.

2 Circuits Controlled—1 Off (Normally Open) and 1 On (Normally Closed)

Switches for two circuits function like single pole, double throw (SPDT) switches. When the switches reach the setpoint, they turn one circuit from off to on (normally open) and another from on to off (normally closed). They have an adjustable reset, which means you can control the amount of pressure change before the switch resets. This pressure difference is commonly referred to as deadband and differential. Use the second external ring to change the reset point anywhere along the setpoint range.

	Max. Short-Term Pressure, psi	Output Digital Signal	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	For Use With	Enclosure Rating		Each
M12 Connection with 4 Pins







	1/4 NPT Male Pipe

	7.5 to 145	Adjustable	360	360	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N11	0000000


	75 to 1,450	Adjustable	2,900	2,900	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N12	000000
	290 to 5,800	Adjustable	8,700	8,700	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N13	000000




			1/4 BSPP Male Pipe

			7.5 to 145	Adjustable	360	360	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N14	000000


			18 to 363	Adjustable	870	870	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N18	000000
			75 to 1,450	Adjustable	2,900	2,900	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N16	000000
			181 to 3,625	Adjustable	5,800	5,800	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N15	000000
			290 to 5,800	Adjustable	8,700	8,700	PNP	±2.5%	500 mA @ 32V DC	-10 to 175	316 Stainless Steel	Air, Diesel Fuel, Hydraulic Fluid, Oil, Water	IP67	4064N17	000000

BSPP to NPT Thread Adapter

		Length, mm
Material	Color	(A)	(B)	(C)	Mounting Fasteners Included	Mounting Hole Style	For Screw Size		Each
Plastic	Black	50	64	40	Yes	Straight	M5	55205K91	000000

Thread Type
Female	Male	Pipe Size (A)	Pipe Size (B)		Each
BSPP	NPT	1/4	1/4	4822T77	000000