E216656 Vacuum Switches | McMaster-Carr

Filter by

Operates On

For Use With

Set Point Adjustability

Pipe Size

Fitting Connection

Maximum Switching Current @ Voltage

Wire Connection

Pressure Set Point

0 in. Hg to 29 in. Hg

0 in. Hg to 30 in. Hg

Thread Type

NPT

Switch Starting Position

1 Off

2 Off

Output Digital Signal

PNP

Measurement Unit

Bar

Inches of Mercury

Kilograms per Square Centimeter

Kilopascals

Megapascals

Millimeters of Mercury

Pounds per Square Inch

Output Signal Type

Connects To

Maximum Pressure

Input Voltage

Electrical Connection

Material

RoHS

Compliant with Exemptions

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

UL File Number

Export Control Classification Number (ECCN)

EAR99

REACH

Not Compliant

DFARS Specialty Metals

Exempt

Number of Wire Leads

Minimum Pressure

0 in. Hg

Forward

How can we improve?

9 Products

Dual-Setpoint Electronic Vacuum Switches for Compressed Air

Trigger two different processes in vacuum applications by sending signals to a programmable logic controller (PLC) when these switches reach one of their two set vacuums. Designed specifically for air systems, they can turn on a vacuum pump if the vacuum is too low or a valve if the vacuum is too high. Or use them to signal an alarm before switching off a pump. Check the vacuum on the display and change your setpoint, reset point, scaling, and other settings using the buttons.

Adjustable—An adjustable reset means you can control the amount of pressure change before the switch resets. This pressure difference is commonly referred to as deadband and differential. Choose anywhere within the setpoint range for your reset point.

IP65 Enclosure Rating—Rated IP65, these switches seal out dust and water from light rinses. They meet American, Canadian, and European safety standards since they’re UL and C-UL recognized components as well as CE marked.

	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
Wire-Lead







	1/8 NPT Male Pipe Connection

	0 to 30	Adjustable	14.6	72	PNP	±0.2%	35 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Air, Argon, Hydraulic Fluid, Inert Gas, Nitrogen, Water	IP65	8054N11	0000000

Square Panel-Mount Brackets

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

Electronic Vacuum Switches for Compressed Air

Specifically made for air systems, these switches send signals to your programmable logic controller (PLC) to trigger processes when they reach a set vacuum. Use them to turn equipment on or off, activate automated controls, or signal alarms. Check the vacuum on the display and change your setpoint, reset point, scaling, and other settings using the buttons. All switches meet at least one American, Canadian, or European safety standard.

Adjustable—An adjustable reset point means you can control the amount of vacuum change before the switch resets, also known as deadband or differential. Choose anywhere within the setpoint range for your reset point.

			Digital Output
Pressure Set Point, in. Hg	Approx. Difference Between Set Point and Reset Point	Max. Continuous Pressure, psi	No. of	Signal Type	Accuracy	Max. Switching Current @ Voltage	Process Temp. Range, ° F	Connection Material	For Use With	Enclosure Rating		Each







			Wire Leads—1/8 NPT Male Pipe Connection

			0 to 30	Adjustable	14.7	1	PNP	±0.2%	25 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Air, Argon, Nitrogen	IP40	8023N11	000000

Square Panel-Mount Brackets

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

Electronic Pressure and Vacuum Switches for Compressed Air

Designed specifically for air systems, these switches send signals to your programmable logic controller (PLC) to activate controls or alarms when your system reaches a set pressure or vacuum. All meet at least one American, Canadian, or European safety standard.

Monitor pressure, setpoint, and reset point on the digital display. Use the display’s buttons to change your settings. These switches have an adjustable reset point (also called adjustable deadband or differential), so you can control the amount of pressure or vacuum change before the switch resets. Choose anywhere within the setpoint range for your reset point.

	Set Point
	Pressure, psi	Vacuum, in. Hg	Approx. Difference Between Set Point and Reset Point	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
Switches (PNP)







				Wire Leads—1/8 NPT Male

				0 to 14 1/2	0 to 29	Adjustable	14.5	72	±0.2%	25 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Air, Argon, Inert Gas, Nitrogen	IP40	3875N11	000000

Square Panel-Mount Brackets

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

Pressure and Vacuum Transmitters for Compressed Air

Specifically made for compressed air and gas systems, these transmitters remotely monitor pressure and vacuum. Also known as transducers, they convert both pressure and vacuum into an electrical signal that can be interpreted by receiving devices, such as remote displays, and motor speed controls. They also have two digital PNP switch outputs that you can connect to your programmable logic controller (PLC) to activate automated controls or alarms when a set pressure or vacuum is reached. Change settings with the buttons on the digital display.

For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's pressure or vacuum range and output signal. As pressure increases, the output signal from the transmitter will increase. Transmitters will only provide accurate readings within the rated pressure or vacuum range.

UL and C-UL recognized components, CSA certified, and CE marked, they meet American, Canadian, and European safety standards.

Wire Leads

4 mA to 20 mA Output Signal—Transmitters with 4 to 20 mA output signal connect using two wires. The same wire is used to send a signal to the receiver and to power the transmitter. Signal is not lost over long distances and isn’t affected by electrical interference from other devices.

1V DC to 5V DC Output Signal—Transmitters with 1 to 5V DC output signal connect using three wires. Two wires connect to the power supply, and a separate wire sends a signal to the receiver. The receiver and the transmitter share a common ground wire back to the power supply.

	Analog Transmitter Output		Digital Switch Output				Max. Pressure, psi		Setpoint Range
	Analog Signal	No. Of	Digital Signal	No. of	Pressure Range, psi	Vacuum Range, in. Hg	Continuous	Short-Term	Pressure, psi	Vacuum, in. Hg	Input Voltage, V DC	Ht.	Wd.	Enclosure Rating	For Use With	Accuracy	Connection Material	Temp. Range, ° F		Each
Polybutylene Housing







				1/8 Male NPT Pipe Threaded Fitting Connection

				4 mA to 20 mA	1	PNP	2	0 to 14.5	0 to 29	14.5	72	0 to 14 1/2	0 to 29	12 to 24	1 13/16"	1 13/16"	IP40	Air, Argon, Nitrogen	±2%	Nickel-Plated Brass	25 to 120	4263N13	000000


				1V DC to 5V DC	1	PNP	2	0 to 14.5	0 to 29	14.5	72	0 to 14 1/2	0 to 29	12 to 24	1 13/16"	1 13/16"	IP40	Air, Argon, Nitrogen	±2%	Nickel-Plated Brass	25 to 120	4263N11	00000




						1/4" OD Tube Push-to-Connect Fitting Connection

						4 mA to 20 mA	1	PNP	2	0 to 14.5	0 to 29	14.5	72	0 to 14 1/2	0 to 29	12 to 24	1 13/16"	1 13/16"	IP40	Air, Argon, Nitrogen	±2%	Nickel-Plated Brass	25 to 120	4263N14	00000


						1V DC to 5V DC	1	PNP	2	0 to 14.5	0 to 29	14.5	72	0 to 14 1/2	0 to 29	12 to 24	1 13/16"	1 13/16"	IP40	Air, Argon, Nitrogen	±2%	Nickel-Plated Brass	25 to 120	4263N12	00000

Square Panel-Mount Brackets

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

Dual-Setpoint Electronic Pressure and Vacuum Switches for Compressed Air

With two setpoints, these switches trigger different actions in your air system by sending signals to a programmable logic controller (PLC) when they reach one of their set pressures or vacuums. For example, they can activate one light when a system is pressurized and another when it’s under vacuum. They have an adjustable reset, so you can control the amount of pressure change before the switch resets. This pressure difference is also called deadband or differential. Choose a reset point anywhere within the setpoint range.

Easily monitor your pressure or vacuum setpoint on the digital display. Use its buttons to adjust the settings and setpoint.

These switches are rated IP65 to seal out dust and water from light rinses. They’re CE marked, UL and C-UL recognized components, and CSA certified to meet American, Canadian, and European safety standards.

	Set Point
	Pressure, psi	Vacuum, in. Hg	Approx. Difference Between Set Point and Reset Point	Max. Continuous Pressure, psi	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
Wire Lead Connection







				1/8 NPT Male

				0 to 14 1/2	0 to 29	Adjustable	14.5	72	PNP	±0.2%	35 mA @ 24V DC	25 to 120	Nickel-Plated Brass	Air, Argon, Inert Gas, Nitrogen	IP65	3878N11	0000000

Square Panel-Mount Brackets

For Panel Cutout
Ht.	Wd.	Mounting Hole Style		Each
1 7/32"	1 7/32"	Straight	3167K22	00000