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MATERIALS OF CONSTRUCTION
Housing Aluminum
Seal
A & B Fluorocarbon / Buna-N
C, D, E Buna-N
SPECIFICATIONS
Ports/Mounting Plate 1/4" NPT
Adjustment Range See table
Proof Pressure* 1150 PSI (80 bar)
Temperature Rating
Ambient 14° to 175° F (-10° to 80° C)
Media -4° to 175° F (-20° to 80° C)
Switching Element SPDT Microswitch
Max. Switching Rate 100 cycles/minute
Repeatability ±3%; for vacuum ±4%
Electrical Connector DIN 43650 Table A with Removable
Cable Plug Adapter
*Note: Do not subject switch to proof pressure during normal operation.
Even short pressure peeks must not exceed proof pressure.
FEATURES
Rugged Compact Design
Convenient Setpoint Adjustments
High Cycle Life
Vibration Resistant to 15g
UL and CSA Approved Microswitch
Gold Plated Contacts
APPLICATION
Ideal for Control of Air
Terminals 1 - 2: Contacts open on rising pressure.
Terminals 1 - 3: Contacts close on rising pressure.
All dimensions in inches (mm)
2
3
1
p
.79 (20)
1.18 (30)
.59 (15)
.21 (5.3)
.61*
(15.5)
2.83 (72)
1.18 (30)
2.95 (75)
1
/4 NPT
Switch Adjustment
PART NUMBER IDENTIFICATION
PART NUMBER PRESSURE RANGE HYSTERESIS*
PSI PSI
Lower Range Upper Range
PSW18PA -14 – 0 2 3
PSW18PB 3 – 29 2 4
PSW18PC 7 – 120 4 9
PSW18PD 15 – 230 4 13
PSW18PE 15 – 435 15 73
*Note: Hysteresis is not adjustable. Maximum values are shown.
PSW18P Series
PNEUMATIC, DIAPHRAGM-STYLE PRESSURE SWITCH