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Pressure and Vacuum Switches
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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.
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 | ||
Adjustable-Reset Vacuum Switches
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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.
Pressure Set Point, 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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | ||
