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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.
Switches with an on/off indicator let you monitor the equipment it’s controlling even when it’s out of sight.
All protect against some corrosion. NEMA 1 rated switches should only be used indoors.
Switches with On/Off Indicator
| Setpoint, in. of Hg | Approximate Difference Between Setpoint and Reset Point | Maximum Continuous Pressure, psi | Maximum Short-Term Pressure, psi | Accuracy | Maximum Switching Current | Process Temperature Range, °F | Connection Material | For Use With | Environmental Rating | Each | |
Screw Terminals | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
1/4 NPT Male Pipe Connection | |||||||||||
| 30-0 | Adjustable | 14.7 | 14.7 | ±1% | 15 A @ 120 V AC 15 A @ 240 V AC 15 A @ 480 V AC | 35° to 180° | Brass | Air, Diesel Fuel, Hydraulic Fluid, Water | NEMA 1 | 0000000 | 000000000 |