Omega PSW20 User Manual

Psw20 series

PSW20 Series

Pressure, vacuum or differential pressure switches

M4067-0504

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Installation Instructions for OMEGA PSW20 Series: Pressure, Vacuum and Differential

Pressure Switches.

General

The PSW20 series is single pole switch that can be used as a pressure or vacuum switch (from 0.40 in W. C. to
20 inches W. C.) or as a pressure differential switch. The switch can respond to rapid pulsing and the gold
plated silver contacts will handle low level switching currents.

Mounting Instructions

Switch may be mounted in horizontal or vertical position, through 0.12" (3mm) holes on 1.34" (34mm)
centerline, with suitable clearances to accommodate 0.15" I.D tubing and electrical connectors – see diagram
for dimensions.

Electrical, Pneumatic and Material/Mechanical Specification

Part
Number

Pressure range

(inches water, gauge)

Pressure Vacuum Differential

PSW20A

0.4-15

.04-15

PSW20B

1-20

INSTRUCTION

SHEET