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Economical OEM Mechanical Pressure Switch

-28 to -6 inHg, fixed deadband


Item# PSW-581

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 C$75.00
10-24 C$71.25
25-49 C$69.75
50-99 C$66.75
100-199 C$65.25
200+ C$63.75

In stock

Lead Time ( If not in Stock): 5 weeks

-28 to -6 inHg, fixed deadband PSW-581 PSW-581
  • External Scale for Easy Set Point Adjustments
  • UL Rated Heavy Duty 15 AMP SPDT Switch Standard
5 Year Warranty

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Switch Type
Pressure Range
Pressure Type
Pressure Port Size
Pressure Port Type
Deadband Range

Product Specs

Switch:15 Amp SPDT silver contacts
Approvals: UL
Process Temp.: -35 to 85°C (-31 to 185°F) 2% set point shift can occur below -23°C (-10°F) or above 52°C (125°F)
Proof Pressure: 600 psig
Cycling: Not to exceed 60 cycles/min
Warranty: 3 years/1 million cycles
Sensor: Aluminum diaphragm
Wetted Parts: Buna-N, aluminum, zinc alloy chromate finish, and loctite sealing compound #271
Enclosure: Switch actuator and bracket steel: irridite finish; adjusting cap and body: zinc alloy chromate finish; switch shield: mylar
Pressure Port: ¼ NPT male
Electrical Conn.: Screw terminals
Size: 92 H x 60 W x 41 mm dia. (3-5/8 H x 2-3/8 W x 1-5/8' Dia.)
Weight: 210 g (7.4 oz)

Rated 4 out of 5 by from Great Feature We buy this switch from time to time to use in poultry barn applications. Our service tech uses them in the water systems, and likes the adjustable feature on them.
Date published: 2016-10-20
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