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From 2 to 6000 PSI (40 mbar to 400 bar),
GEMS Pressure Switches
Cover A Wide Range of Applications





General, Vacuum, Differential, Specialty
Field-Adjustable or Factory Set Switches
High Proof Pressure
Rugged and Dependable

GEMS offers a choice of pressure switches, from compact cylindrical
models for OEM use, to larger, enclosed units for rugged process
applications. These switches are ideal for the filtering process of
coolants in the machine tool industry, use in transmissions of
off-highway vehicles and as redundant systems with existing monitors
such as transducers.

Unique Piston/Diaphragm Design
A piston/diaphragm design, incorporating the high proof pressure of
piston technology allows these switches to operate with the sensitivity
and accuracy of a diaphragm design. Repeatability ranges from 0.25
percent to 5 percent of the set point.

Many Materials To Choose From
Enclosures include aluminum, stainless steel, brass, reinforced plastic
and zinc-plated steel. Wetted parts include a diaphragm available in
Buna-n, Teflon® coated Kapton®, stainless steel, PTFE, EPDM or Viton®
and a pressure port available in stainless steel, brass, zinc or aluminum.

PRESSURE SWITCHES

Pressure Switch Option Descriptions
G: Gold contacts are usually
required for low DC current
loads (<12 VDC @ 12 mA)
associated with TTL input
devices. They provide
decreased contact resistance,
which results in more reliable
switching especially in the
presence of an oxidizing
atmosphere.
OXY: Wetted Materials are
ultrasonically cleaned per the
Compressed Gas Association’s
Method G-4.1.
10A: 10A option is provided by a
microswitch rated 10 Amperes
at 250 VAC. This microswitch
has a wide movement
differential, which results in a
larger deadband than listed in
the standard catalog pages.

I-1

IP: Ingress Protection is provided
by either an epoxy sealed cap
(IP65) or silicon wire seals
(IP66). On some models, this
option is only available with
FS option.
RB: Rubber Boot is designed to
be cut out for the proper wire
or cable size by the customer
and sealed with an appropriate
sealant in the field.
WF: Weatherpack female
termination consists
of the following Delphi
P/N’s:(12045793 Conn “C”
Circuit), 12089188 Female
Pins and 12015323 Wire
Seals.

WM: Weatherpack male
termination consists of
the following Delphi P/N’s:
12010973 Connector,
(12010717 Conn “C” Circuit),
12089040 Male Pins and
12015323 Wire Seals.
DE: Deutsch male termination
consists of the following
Deutsch P/N’s: DT04-2P
Connector, (DTO4-3P “C”
Circuit) 1060-16-0122
Male Pins and W(2 or 3)P
Wedgelok.
FS: Gems will preset switches
to the indicated set point
within repeatability limits
listed on the specific product
catalog page.

Visit www.GemsSensors.com for most current information.

R: The restrictor option is
recommended for hydraulic
systems that need a small
reduction in pressure
pulsations to increase
pressure switch life. It is a
pressed in part that has an
orifice size of 0.045˝ (1.4 mm)
SR: The spiral restrictor option
heavily dampens pressure
pulsations in any hydraulic
system, which prevents false
signaling and premature wear.
It is not recommended for
pressure settings below 1500
psig (103 bar) because it
slows the response time of the
pressure switch.

INTRODUCTION
Selection Guide

Miniature
Pressure
Switches

Vacuum
Switches

Proof Pressure

Switch

Notes

Series

Page

0.75 to 15 psi
(52 to 1034 mbar)

150 psi
(10 bar)

SPST, SPDT



PS11

I-3

5 to 150 psi
(0.35 to 10 bar)

500 psi
(35 bar)

Kapton® Diaphragm

PS31

I-5

5 to 100 psi
(0.35 to 7 bar)

500 psi
(35 bar)

Elastomer Diaphragm

PS32

I-7

50 to 300 psi
(3.45 to 20 bar)

500 psi
(35 bar)

SPST

Kapton® Diaphragm

PS51

I-5

Elastomer Diaphragm

PS52

I-7

15 to 3000 psi
(1.03 to 207 bar)

6000 psi
(414 bar)

SPST



PS61

I-11

PS62

I-13

5 to 6000 psi
(0.35 to 414 bar)

7500 psi
(517 bar)

SPST, SPDT,
DPST, DPDT



PS75

I-19

3.5 to 100 psi
(0.24 to 7 bar)

350 psi
(24 bar)

SPST, SPDT



PS41

I-9

10 to 5000 psi
(0.7 to 344 bar)

6000 psi
(414 bar)

SPST, SPDT



PS71

I-15

10 to 750 psi
(0.7 to 52 bar)

3000 psi
(207 bar)

SPST, SPDT



PS72

I-17

15 to 1750 psi
(1 to 121 bar)

4500 psi
(517 bar)

SPST, DPDT



PS76

I-21

1.5˝ to 15˝ Hg
(51 to 508 mbar)

150 psi
(10 bar)

SPST, SPDT



PS81

I-23

5˝ to 28˝ Hg
(169 to 948 mbar)

350 psi
(24 bar)

SPST, SPDT



PS82

I-25

0 to 6000psi
(0 to 400 bar)

See Specs

SPST, Relay or
Transistor

Solid-State

PS98

I-27

Solid-State
Switches

SPST

Plastic Diaphragms

Elastomer Diaphragms

Option K or Standard Teflon®
Coated Kapton® (Polyimide)
Diaphragm

Elastomers offer incredible
sensitivity coupled with
extremely long life. This results
in stable set points over the
life of the pressure switch as
well as tight deadbands. Their
biggest weakness is the increase
in modulus (stiffening) that
occurs at lower temperatures.
This results in pressure switch
set points to shift higher and
deadbands to increase with
decreasing temperature. They
also exhibit more hysteresis
than Kapton® diaphragms.

Teflon® is compatible with
almost every liquid and gaseous
media. Kapton® has very stable
physical properties over a wide
temperature range (-100°F
to +400°F). This results in
pressure switches that exhibit
very little set point shift due to
temperature extremes. Kapton®
possesses exceptional fatigue
strength but is very stiff which
results in wider but more
stable deadbands than most
elastomers.

Standard: Nitrile (Buna-N).
Typically specified on
water and petroleum based
hydraulic oils. Temperature
range: 32°F to 250°F
(0°C to 121°C)
Option V: Viton®
(Fluoroelastomer)
Diaphragm. Typically used
with alcohols, diesters,
solvents, acids and synthetic
oils. Also used for high
vacuum service.Temperature
range: 32°F to 400°F
(0°C to 204°C)

Visit www.GemsSensors.com for most current information.

PRESSURE SWITCHES

Subminiature
Pressure
Switches

Pressure Range

Option E: EPDM (Ethylene
Propylene) Diaphragm.
Typically used with
phosphate ester based
hydraulic fluids, brake fluids,
ketones, steam and
hot water. Temperature
range:-65°F to +212°F
(-54°C to +100°C)
Option N: Neoprene
(Chloroprene) Diaphragm.
Typically specified for
refrigerant systems.
Temperature range:
-65°F to +275°F
(-54°C to +135°C)

I-2

PS11 – Ultra-Long Life
OEM Pressure Switches
 0.75 to 15 psi (52 to 1034 mbar)
 1,000,000 Cycle Life Typical
 Factory Set or Adjustable Set Points
For low pressure applications, the longevity of our PS11 Series is hard to beat.
A life expectancy of 1 million cycles means long-term reliability. Their snap-action
microswitch resets automatically and meets or exceeds industry standards. The brass
housing offers chemical resistance at an affordable price.

Specifications
Switch*

5 Amp @ 24 VDC and 250 VAC
1.0 Amp resistive
0.5 Amp inductive @ 24 VDC (-G option)
See TTable 1

Repeatability
Wetted Parts
Diaphragm
Fitting
Housing
O-Ring
Electrical Termination**
Proof Pressure
Burst Pressure
Approvals
Weight, Approximate

Nitrile (optional Viton , EPDM or Kapton )
Brass
Brass
Nitrile (optional Viton® or EPDM)
DIN 43650A IP00; Terminals IP00; Flying Leads IP00
0 psia to 150 psi (-1 bar to 10.3 bar)
300 psi (20.7 bar)
CE, UL Approved units available
0.31 lbs. (0.14 kg)
®

Dimensions

®

SPDT Shown
RED = N.O.
GREEN = N.C.
BLACK = COMM0N
ADJUSTMENT
SCREW
UNDER CAP

* Gold contacts (option G) may be required for less than 12 VDC and 20 mA.
** Plastic housing is vented to atmosphere. Consult factory for non-vented version.

Recommended Operating Temperature Limits
Diaphragm Material

Range

Nitrile

15°F to 250°F (-9°C to +121°C)

Viton®

0°F to 250°F (-18°C to +121°C)

EPDM
Kapton


(51)

-40°F to +250°F (-40°C to +121°C)
®

-40°F to +250°F (-40°C to +121°C)

PRESSURE SWITCHES

Note: Switches may function below the cold temperature limit but the set point and deadband will increase.
Consult factory for details.

ø1.75˝
(ø44)

1.10˝
(28)

B

DIN 43650A
CABLE CLAMP

DIN 43650A
MALE HALF ONLY

2.34˝
(59)

ø1.75˝
(ø44)

I-3

Visit www.GemsSensors.com for most current information.

subminiature
How To Order
Use the Bold characters from the chart below to construct a product code. Please reference Notes.

PS11 -10 -4MNB -C -HC -XX -XXXX
1
1 Pressure Range Code
Insert Pressure Range Code from Table 1, below.
2 Pressure Fitting1
-2MNB = 1/8˝ NPTM Brass
-4MNB = 1/4˝ NPTM Brass
-2FNB = 1/8˝ NPTF Brass
-4MGB = 1/4˝ BSPM Brass (G type)
-4MSB = 7/16˝-20 SAE Male, Brass
-6MSB = 9/16˝-18 SAE Male, Brass
3 Circuit

-A = SPST/N.O.

-B = SPST/N.C.

-C = SPDT

2

3

4

5

6

5 Options

-V = Viton® Diaphragm

-E = EPDM Diaphragm

-K = Kapton® Diaphragm

-IP = Ingress Protection4

-G = Gold Contacts
(for loads less than 12 mA @ 12 VDC)
-OXY = Oxygen Cleaned
-WF = Weather Pack Connector, Female
-WM = Weather Pack Connector, Male
-DE = Deutsch Connector, Male, DT04 Series

Notes:
1. Other fittings available.
Consult factory.
2. DIN units are available with
-C SPDT circuit only.
3. 18˝ is standard. Specify lead
length in inches (max. 48˝).
e.g. -FL18 or -EL30.
4. Ingress Protection requires
Fixed Set Point -FS.
5. Set Point must be within
Pressure Range selected in
Step 1.

6 Fixed Set Point (optional)

4 Electrical Termination2

-FLXX = Flying Leads3
-ELXX = 1/2˝ Male NPT Conduit w/Flying Leads3

-H = DIN 43650A Male Half Only

-HC = DIN 43650A 9mm Cable Clamp

-HN = DIN 43650A 1/2˝ NPT Female Conduit

A. Specify set point -FS (in PSI or mBAR, see example)5
B. Set Point Actuation
R on Rising Pressure
F on Falling Pressure
Example: -FS200MBARF for 200 mBAR Falling
or -FS3PSIR for 3 PSI Rising

Table 1 — Pressure Range Codes
Pressure Range Code

Pressure Range

Repeatability*

Average Deadband**

10

0.75-4 psig (51-276 mbar)

±0.15 psi (10 mbar) +4% of setting

0.2 psi (14 mbar) +9% of setting

20

3.5-15 psig (241-1034 mbar)

±0.25 psi (17 mbar) +5% of setting

0.4 psig (26 mbar) +11% of setting

PRESSURE SWITCHES

* Repeatability and set point of units may change due to the effects of temperature.
** In certain applications deadband can be tailored and controlled to customer specifications. Consult factory for details.

Visit www.GemsSensors.com for most current information.

I-4

PS31/PS51 – Kapton® Diaphragm
OEM Subminiature Pressure Switch
 5 to 300 psi (0.345 to 20 bar)
 Ideal for Low Temperature Pneumatic Applications
 Adjustable or Factory Set
These compact pressure switches are designed for OEM applications. Made
economical with metal blade contacts in lieu of microswitches, these switches feature
Kapton® diaphragms. Kapton® polyimide maintains excellent physical properties over
a wide temperature range. It also offers superb chemical resistance and has no known
organic solvents.
The PS31 and PS51 share identical construction and envelope dimensions, with the
PS51 Series providing higher pressure ranges.

Dimensions

Specifications
Operating Temperature
Switch*
Repeatability
Wetted Parts
Diaphragm
O-Ring
Fitting
Electrical Termination
Deadband
Proof Pressure
Burst Pressure
Approvals
Weight, Approximate

0.54˝
(14)

-40°F to +230°F (-40°C to +110°C)
100 VA Max.
See Table 1
Teflon® Coated Kapton® (Solid Teflon® Available)
Nitrile (Std.) Consult factory for other materials
Brass (optional 316 Stainless Steel)
Exposed Terminals IP00; IP option IP66
See Table 1
500 psi (35 bar)
1000 psi (69 bar)
CE (limits switch voltage to 42 VDC)
Brass: 0.14 lbs. (0.06 kg)

HEX HEAD
ADJUSTMENT SCREW

15/16˝
AF.
(24)

1.120˝
(29)

1.58˝
(40.16)

1.51˝
(38.30)

* Gold contacts (option G) may be required for less than 12 VDC and 20 mA.
1/4˝ Spades

PRESSURE SWITCHES
I-5

1.85˝
(47)

0.36˝
(9.07)

Visit www.GemsSensors.com for most current information.

HEX
15/16˝
(24)
PRESSURE
PORT

ø0.80˝
(ø20)

Flying Leads with IP option

subminiature
How To Order
Use the Bold characters from the chart below to construct a product code. Please reference Notes.

PS31 -20 -4MNB -A -SP -XX -XXXX
1

2

1 Series
PS31 or PS51
2 Pressure Range Code
Insert Pressure Range Code from Table 1, below.
3 Pressure Fitting1
Brass
-2MNB = 1/8˝ NPTM
-4MNB = 1/4˝ NPTM
-2MGB = 1/8˝ BSPM (G type)
-4MGB = 1/4˝ BSPM (G type)
-8MGB = 1/2˝ BSPM (G type)
-M10B = M10 x 1.0, Straight
-M12B = M12 x 1.5, Straight
-4MSB = 7/16˝-20 SAE Male
-6MSB = 9/16˝-18 SAE Male

3

4

5

6

5 Electrical Termination
-SP = Spade Terminals (standard)
-TS = Terminal Screws
-FLXX = Flying Leads2
-FLSXX = Flying Leads w/PVC Shrink Tubing2
-CABXX = 18 AWG PVC Cable3
6 Options

-G = Gold Contacts
(for loads less than 12 mA @ 12 VDC)

-IP = Ingress Protection4
-OXY = Oxygen Cleaned
-RB = Rubber Boot (shipped loose)
-WF = Weather Pack Connector, Female
-WM = Weather Pack Connector, Male
-DE = Deutsch Connector, Male, DT04 Series

7
Notes:
1. Other fittings available.
Consult factory.
2. 18˝ is standard. Specify lead
length in inches (max. 48˝).
e.g. -FL18 or -FLS30.
3. 36˝ is minimum. Specify
cable length in inches. e.g.
-CAB36 or -CAB120.
4. Ingress Protection is
available only with -FL, -FLS
or -CAB Electrical
Termination choices.
5. Set Point must be within
Pressure Range selected in
Step 2.

7 Fixed Set Point (optional)
A. Specify set point -FS
(in PSI or BAR, see example)5
B. Set Point Actuation
R on Rising Pressure
F on Falling Pressure
Example: -FS0.6BARF for 0.6 BAR Falling
or -FS10PSIR for 10 PSI Rising

316 Stainless Steel
-2MNS = 1/8˝ NPTM
-4MNS = 1/4˝ NPTM
-2MGS = 1/8˝ BSPM (G type)
-4MGS = 1/4˝ BSPM (G type)
-4MSS = 7/16˝-20 SAE Male
-6MSS = 9/16˝-18 SAE Male
4 Circuit

-A = SPST/N.O.

-B = SPST/N.C.
Table 1 — Pressure Range Codes
Pressure Range Code

Pressure Range

Repeatability*

Average Deadband**

20

5-25 psi (0.3-1.7 bar)

±1 psi (0.07 bar) +3% of setting

2 psi (0.14 bar) +4% of setting

30

20-60 psi (1.4-4.1 bar)

±1.5 psi (0.10 bar) +3% of setting

3 psi (0.21 bar) +4% of setting

40

50-150 psi (3.4-10.3 bar)

±2.5 psi (0.17 bar) +3% of setting

4 psi (0.28 bar) +4% of setting

Pressure Range Code

Pressure Range

Repeatability*

Average Deadband**

15

50-150 psi (3.4-10.3 bar)

±3.0 psi (0.21 bar) +4% of setting

5 psi (0.14 bar) +5% of setting

20

150-300 psi (10.3-20.7 bar)

±4 psi (0.28 bar) +4% of setting

8 psi (0.21 bar) +5% of setting

PRESSURE SWITCHES

PS31

PS51

* Repeatability and set point of units may change due to the effects of temperature.
** In certain applications deadband can be tailored and controlled to customer specifications. Consult factory for details.

Visit www.GemsSensors.com for most current information.

I-6

PS32/PS52 – Elastomer Diaphragm
OEM Subminiature Pressure Switch
 5 to 300 psi (0.345 to 20 bar)
 Ideal for Pneumatic and Low Pressure Hydraulic Applications
 Adjustable or Factory Set
These compact pressure switches are designed for OEM applications. Made
economical by using metal blade contacts in lieu of microswitches, the series features
long-lasting Elastomer diaphragms in three materials. Elastomer diaphragms offer
increased sensitivity and life for applications without temperature extremes.
The PS32 and PS52 share identical construction and envelope dimensions, with the
PS52 Series providing higher pressure ranges.

Dimensions

Specifications
Switch*
Repeatability
Wetted Parts
Diaphragm
Fitting
Electrical Termination
Deadband
Proof Pressure
Burst Pressure
Approvals
Weight, Approximate

0.54˝
(14)

100 VA Max.
See Table 1
Elastomer (Nitrile standard) (Viton®, EPDM optional)
Brass standard (optional 316 SS)
Exposed Terminals IP00; IP option IP66
See Table 1
500 psi (35 bar)
1000 psi (69 bar)
CE (limits switch voltage to 42 VDC)
Brass: 0.14 lbs. (0.06 kg)

* Gold contacts (option G) may be required for less than 12 VDC and 20 mA.

HEX HEAD
ADJUSTMENT SCREW

15/16˝
AF.
(24)

1.120˝
(29)

1.58˝
(40.16)

1.51˝
(38.30)

Recommended Operating Temperature Limits
Diaphragm Material

HEX
15/16˝
(24)
PRESSURE
PORT

ø0.80˝
(ø20)

Range

Nitrile

15°F to 230°F (-9°C to 110°C)

Viton®

0°F to 230°F (-18°C to 110°C)

EPDM

-40°F to 230°F (-40°C to 110°C)

1/4˝ Spades

Note: Switches may function below the cold temperature limit but the set points and deadband will increase.
Consult factory for details.

PRESSURE SWITCHES
I-7

1.85˝
(47)

0.36˝
(9.07)

Visit www.GemsSensors.com for most current information.

Flying Leads with IP option

subminiature
How To Order
Use the Bold characters from the chart below to construct a product code. Please reference Notes.

PS32 -20 -4MNB -A -SP -XX -XXXX
1

2

1 Series
PS32 or PS52
2 Pressure Range Code
Insert Pressure Range Code from Tables 1, below.
3 Pressure Fitting1
Brass
-2MNB = 1/8˝ NPTM
-4MNB = 1/4˝ NPTM
-2MGB = 1/8˝ BSPM (G type)
-4MGB = 1/4˝ BSPM (G type)
-4MSB = 7/16˝-20 SAE Male
316 Stainless Steel
-2MNS = 1/8˝ NPTM
-4MNS = 1/4˝ NPTM
-2MGS = 1/8˝ BSPM (G type)
-4MGS = 1/4˝ BSPM (G type)
-4MSS = 7/16˝-20 SAE Male

3

4

5

6

6 Options

-V = Viton® Diaphragm

-E = EPDM Diaphragm

-H = ECOH Diaphragm

-G = Gold Contacts
(for loads less than 12 mA @ 12 VDC)

-IP = Ingress Protection4
-OXY = Oxygen Cleaned
-RB = Rubber Boot (shipped loose)
-WF = Weather Pack Connector, Female
-WM = Weather Pack Connector, Male
-DE = Deutsch Connector, Male, DT04 Series
7 Fixed Set Point (optional)
A. Specify set point -FS
(in PSI or BAR, see example)5
B. Set Point Actuation
R on Rising Pressure
F on Falling Pressure
Example: -FS0.6BARF for 0.6 BAR Falling
or -FS10PSIR for 10 PSI Rising

4 Circuit

-A = SPST/N.O.

-B = SPST/N.C.

7
Notes:
1. Other fittings available.
Consult factory.
2. 18˝ is standard. Specify lead
length in inches (max. 48˝).
e.g. -FL18 or -FLS30.
3. 36˝ is minimum. Specify
cable length in inches. e.g.
-CAB36 or -CAB120.
4. Ingress Protection is
available only with -FL, -FLS
or -CAB Electrical
Termination choices.
5. Set Point must be within
Pressure Range selected in
Step 2.

5 Electrical Termination
-SP = Spade Terminals (standard)
-TS = Terminal Screws
-FLXX = Flying Leads2
-FLSXX = Flying Leads w/PVC Shrink Tubing2
-CABXX = 18 AWG PVC Cable3
Table 1 — Pressure Range Codes

Pressure Range Code

Pressure Range

Repeatability*

Average Deadband**

20

5-25 psi (0.3-1.7 bar)

±1 psi (0.07 bar) +3% of setting

2 psi (0.14 bar) +4% of setting

30

20-60 psi (1.4-4.1 bar)

±1.5 psi (0.10 bar) +3% of setting

3 psi (0.21 bar) +4% of setting

40

50-150 psi (3.4-10.3 bar)

±2.5 psi (0.17 bar) +3% of setting

4 psig (0.28 bar) +4% of setting

Pressure Range Code

Pressure Range

Repeatability*

Average Deadband**

15

50-150 psi (3.4-10.3 bar)

±3.0 psi (0.21 bar) +4% of setting

5 psi (0.14 bar) +5% of setting

20

150-300 psi (10.3-20.7 bar)

±4 psi (0.28 bar) +4% of setting

8 psi (0.21 bar) +5% of setting

PRESSURE SWITCHES

PS32

PS52

* Repeatability and set point of units may change due to the effects of temperature.
** In certain applications deadband can be tailored and controlled to customer specifications. Consult factory for details.

Visit www.GemsSensors.com for most current information.

I-8

PS41 – Economical
Miniature Pressure Switches
 3.5 to 100 psi (0.24 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.

Dimensions

Specifications
Switch
Repeatability
Wetted Parts
Diaphragm Material
Fitting
Electrical Termination

SPST; SPDT
See Table 1

FLYING LEAD

Nitrile (optional EPDM, Viton® or Neoprene)
Brass (optional 316 Stainless Steel)
DIN 43650A IP65; Terminals IP00; Flying Leads IP65;
Option IP: IP66; Conduit with Flying Leads IP65
350 psi (24 bar)
700 psi (48 bar)
CE, UL Approved units available
Brass: 0.3 lbs. (0.14 kg)

Proof Pressure
Burst Pressure
Approvals
Weight, Approximate

ø1.10˝
(ø28)

3/32˝ or
1/8˝ ALLEN
WRENCH
ADJUSTMENT
SCREW
1.58˝
(40)

PRESSURE
PORT

RED, NO.
GREEN, NC.
BLACK, COM.

INGRESS PROTECTION OPTION (IP66)
WITH FLYING LEADS FACTORY SET ONLY

ø1.25˝
(ø32)

Recommended Operating Temperature Limits
Options Selected
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)

Diaphragm Material

2.20˝
(56)

1.95˝
(50)

Note: Switches may function below the cold temperature limit but the set points and deadband will increase.
Consult factory for details.

PRESSURE SWITCHES

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 with -G

DIN
43650A

RIGHT ANGLE DIN (HNR)

Electrical Switch Ratings

-SP without -G

1.10˝
(28)

DIN 43650A – MALE HALF ONLY

10.1 amps @ 125/250 Volts



2 amps @ 125/250 Volts



ADJUSTMENT SCREW
UNDER CAP SCREW

PRESSURE
PORT

DIN 43650-HNR

B
2.80˝
(71)

1.78˝
(45)

2.14˝
(54)

I-9

Visit www.GemsSensors.com for most current information.

1.12˝ AF
(28)


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