Cut Sheet

I-9
PRESSURE SWITCHES
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ø1.10˝
(ø28)
ø1.25˝
(ø32)
5/64˝, 3/32˝ or
1/8˝ ALLEN
WRENCH
ADJUSTMENT
SCREW*
RED, NO.
GREEN, NC.
BLACK, COM.
1.10˝
(28)
DIN
43650A
1.95˝
(50)
2.20˝
(56)
1.58˝
(40)
PRESSURE
PORT
B
DIN 43650-HNR
1.12˝ AF
(28)
1.78˝
(45)
ADJUSTMENT SCREW
UNDER CAP SCREW
2.80˝
(71)
PRESSURE
PORT
2.14˝
(54)
PS41 Series / p1of2 / 07-MAY-14
PS41 – Economical
Miniature Pressure Switches
 4 to 100 psi (0.28 to 7 bar)
These miniature pressure switches are designed for demanding applications where
space and/or price are strong concerns. The switches utilize a piston/diaphragm
design, which incorporates the high proof pressure of piston technology with the
sensitivity of diaphragm designs. Switches are field adjustable via an Allen head screw
that is hidden to protect against unauthorized tampering.
Specifications
Switch SPST; SPDT
Repeatability See Table 1
Wetted Parts
Diaphragm Material Nitrile (optional EPDM, Viton
®
or Neoprene)
Fitting Brass (optional 316 Stainless Steel)
Electrical Termination DIN 43650A IP65; Terminals IP00; Flying Leads IP65;
Option IP: IP66; Conduit with Flying Leads IP65
Proof Pressure 350 psi (24 bar)
Burst Pressure 700 psi (48 bar)
Approvals CE, UL Approved units available
Weight, Approximate Brass: 0.3 lbs. (0.14 kg)
Dimensions
Options Selected
Diaphragm Material
No option,
-10A, -SP or -RD
-RD or -RD and -G -SP or -10A
Nitrile
15°F to 185°F
(-9°C to +85°C)
15°F to 250°F
(-9°C to +121°C)
15°F to 212°F
(-9°C to +100°C)
Viton
®
0°F to 185°F
(-18°C to +85°C)
0°F to 250°F
(-18°C to +121°C)
0°F to 212°F
(-18°C to +100°C)
EPDM
-10°F to +185°F
(-23°C to +85°C)
-10°F to +250°F
(-23°C to +121°C)
-10°F to +212°F
(-23°C to +100°C)
Neoprene
-10°F to +185°F
(-23°C to +85°C)
-10°F to +250°F
(-23°C to +121°C)
-10°F to +212°F
(-23°C to +100°C)
Note: Switches may function below the cold temperature limit but the set points and deadband will increase.
Consult factory for details.
Options Selected AC DC
No option or -RD
5 amps @ 125/250 Volts
5 amps resistive,
3 amps inductive @ 28 Volts
-G or -RD with -G
1 amp @ 125 Volts
1 amp resistive,
0.5 amp inductive @ 28 Volts
-SP without -G
10.1 amps @ 125/250 Volts —
-SP with -G
2 amps @ 125/250 Volts —
Recommended Operating Temperature Limits
Electrical Switch Ratings
* Adjustment screw is located under protective screw.
Flying Lead
Ingress Protection Option (IP66)
with Flying Leads Factory Set Only
DIN 43650A – Male Half Only
Right Angle DIN (HNR)