UE 54 Series General Service OEM Switches

Prices starting at:
$86.00
Call for Availability
SKU
54

Cost-effective pressure and temperature switches for OEM applications. Single or dual SPDT switch outputs, reference dial or hex adjustment, NEMA 1 enclosure or open frame skeleton construction. cUL, cULus listed, cURus recognized, CE compliant.

UE's 54 Series offers the OEM reliable performance and low cost in a single switch. Available in pressure and temperature versions, with single or dual SPDT outputs and enclosed or open frame (skeleton) construction, the 54 Series fits a wide variety of applications in medical, laboratory, fire protection, and heating equipment.

Low cost single SPDT output pressure and temperature switches are usually in stock at Lesman, available for immediate delivery. Aluminum pressure connections and Buna-N diaphragm and O-ring construction. Limited to use in process temperatures below 200°F.

  • Single or dual SPDT or switch outputs
  • Adjustable pressure setpoint ranges from 30" HgVac to 6000 PSI
  • Adjustable temperature setpoint ranges from -130° to 650° F (-90° to 343.3° C)
  • Repeatability to ±1% full scale range
  • Easy setting by reference dial or hex screw adjustment
  • Brass or aluminum threaded pressure connections
  • Adjustable or narrow deadband for improved accuracy
  • NEMA 1 polycarbonate enclosure or open frame (skeleton) construction
  • cUL, cULus listed, cURus recognized, CE compliant
  • Popular models and ranges normally available from Lesman stock, ready to ship within one business day

Model Selection Guide

Use this table to find the right model for your application. Don't see the option you need? Call a Lesman sales specialist at 800-953-7626.

Switch
Output
Enclosure/
Construction
Adjustment Reference
Dial
Pressure
Connection
Adjustable Range
(PSI Unless Noted)
Deadband
(PSI Unless Noted)
Proof Pressure
(PSI)
Click for Price
and Availability
Type H54, J54/J54A: Lexan® polycarbonate enclosure. Buna-N diaphragm and O-ring, aluminum pressure connection.
1 SPDT NEMA 1 Internal Hex Yes 1/4" NPTM
Aluminum
30" HgVac to 0
3 to 30
10 to 100
30 to 300
50 to 500
1" to 3.5" Hg Vac
0.4 to 1.5
1.0 to 2.5
1.3 to 4
1.5 to 6
50
200
300
600
600
H54-22
H54-24
H54-25
H54-27
H54-28
1 SPDT NEMA 1 Internal Hex No 1/4" NPTM
Aluminum
30" HgVac to 0
3 to 30
10 to 100
30 to 300
50 to 500
1" to 3.5" Hg Vac
0.4 to 1.5
1.0 to 2.5
1.3 to 4
1.5 to 6
50
200
300
600
600
J54-22
J54-24
J54-25
J54-27
J54-28
2 SPDT NEMA 1 Internal Hex No 1/4" NPTM
Aluminum
30" HgVac to 0
3 to 30
10 to 100
30 to 300
50 to 500
1" to 3.5" Hg Vac
0.4 to 1.5
1.0 to 2.5
1.3 to 4
1.5 to 6
50
200
300
600
600
J54A-22
J54A-24
J54A-25
J54A-27
J54A-28
Type H54, J54/J54A: Lexan® polycarbonate enclosure. Brass bellows, nickel-plated brass pressure connection. (* Zinc-plated steel spring exposed to media.)
1 SPDT NEMA 1 Internal Hex Yes 1/4" NPTM
Brass
30" HgVac to 0
0" to 80" WC
0 to 20
0 to 30
0 to 100
0 to 200
0.2" to 0.9" Hg
1" to 8" WC
0.1 to 0.5
0.1 to 0.6
0.2 to 0.8
0.3 to 2
5
5
25
40
125
200
H54-126*
H54-137
H54-144
H54-146
H54-156
H54-164
1 SPDT NEMA 1 Internal Hex No 1/4" NPTM
Brass
30" HgVac to 0
0" to 80" WC
0 to 20
0 to 30
0 to 50
0 to 100
0 to 200
0.2" to 0.9" Hg
1" to 8" WC
0.1 to 0.5
0.1 to 0.6
0.1 to 0.7
0.2 to 0.8
0.3 to 2
5
5
25
40
75
125
200
J54-126*
J54-137
J54-144
J54-146
J54-152
J54-156
J54-164
2 SPDT NEMA 1 Internal Hex No 1/4" NPTM
Brass
30" HgVac to 0
0" to 80" WC
0 to 20
0 to 30
0 to 50
0 to 100
0 to 200
0.2" to 0.9" Hg
1" to 8" WC
0.1 to 0.5
0.1 to 0.6
0.1 to 0.7
0.2 to 0.8
0.3 to 2
5
5
25
40
75
125
200
J54A-126*
J54A-137
J54A-144
J54A-146
J54A-152
J54A-156
J54A-164
Type J54: Lexan® polycarbonate enclosure. Buna-N diaphragm and O-ring, brass pressure connection. Includes adjustable deadband microswitch.
1 SPDT NEMA 1 Hex No 1/4" NPTM
Brass
30 to 300 10 to 30 200 Above SP J54-16009
Type J54: Lexan® polycarbonate enclosure. 303 SS piston and pressure connection, Buna-N O-ring. (Not for gas service)
1 SPDT NEMA 1 Internal Hex No 1/4" NPTF 75 to 1000
125 to 3000
700 to 6000
30 to 150
40 to 250
50 to 400
10000
10000
10000
J54-610
J54-612
J54-614
Type H54S/J54S: Skeleton construction. Buna-N diaphragm and O-ring, aluminum pressure connection
1 SPDT Skeleton No Yes 1/4" NPTM
Aluminum
30" HgVac to 0
3 to 30
10 to 100
30 to 300
50 to 500
1" to 3.5" Hg Vac
0.4 to 1.5
1.0 to 2.5
1.3 to 4
1.5 to 6
50
200
300
600
600
H54S-22
H54S-24
H54S-25
H54S-27
H54S-28
1 SPDT Skeleton Hex No 1/4" NPTM
Aluminum
30" HgVac to 0
3 to 30
10 to 100
30 to 300
50 to 500
1" to 3.5" Hg Vac
0.4 to 1.5
1.0 to 2.5
1.3 to 4
1.5 to 6
50
200
300
600
600
J54S-22
J54S-24
J54S-25
J54S-27
J54S-28
2 SPDT Skeleton Hex No 1/4" NPTM
Aluminum
30" HgVac to 0
3 to 30
10 to 100
30 to 300
50 to 500
1" to 3.5" Hg Vac
0.4 to 1.5
1.0 to 2.5
1.3 to 4
1.5 to 6
50
200
300
600
600
J54AS-22
J54AS-24
J54AS-25
J54AS-27
J54AS-28
Type H54S, J54S/J54AS: Skeleton construction. Brass bellows, nickel-plated brass pressure connection. (Model 126 has zinc-plated steel spring exposed to media.)
1 SPDT Skeleton Internal Hex Yes 1/4" NPTM
Brass
30" HgVac to 0
0" to 80" WC
0 to 20
0 to 30
0 to 100
0 to 200
0.2" to 0.9" Hg
1" to 8" WC
0.1 to 0.5
0.1 to 0.6
0.2 to 0.8
0.3 to 2
5
5
25
40
125
200
H54S-126
H54S-137
H54S-144
H54S-146
H54S-156
H54S-164
1 SPDT Skeleton Internal Hex No 1/4" NPTM
Brass
30" HgVac to 0
0" to 80" WC
0 to 20
0 to 30
0 to 50
0 to 100
0 to 200
0.2" to 0.9" Hg
1" to 8" WC
0.1 to 0.5
0.1 to 0.6
0.1 to 0.7
0.2 to 0.8
0.3 to 2
5
5
25
40
75
125
200
J54S-126
J54S-137
J54S-144
J54S-146
J54S-152
J54S-156
J54S-164
2 SPDT Skeleton Internal Hex No 1/4" NPTM
Brass
30" HgVac to 0
0" to 80" WC
0 to 20
0 to 30
0 to 50
0 to 100
0 to 200
0.2" to 0.9" Hg
1" to 8" WC
0.1 to 0.5
0.1 to 0.6
0.1 to 0.7
0.2 to 0.8
0.3 to 2
5
5
25
40
75
125
200
J54AS-126
J54AS-137
J54AS-144
J54AS-146
J54AS-152
J54AS-156
J54AS-164
Type J54S: Skeleton construction. Buna-N diaphragm and O-ring, brass pressure connection. Includes adjustable deadband microswitch.
1 SPDT Skeleton Hex No 1/4" NPTM
Brass
30 to 300 10 to 30 200 Above SP J54S-16008
Switch
Output
Enclosure/
Construction
Adjustment Reference
Dial
Stem NPT x
Length Below Thread
Adjustable Range Max. Temperature
°F/°C
Scale
Division
Click for Price
and Availability
°F °C °F °C °F °C
Type B54, C54/C54A: Lexan® polycarbonate enclosure. Brass immersion stem.
1 SPDT NEMA 1 Internal Yes 3/8" x 2-1/8" 0 to 225
200 to 425
-17.8 to 107.2
93.3 to 218.3
250
425
121.1
218.3
10
10
5
5
B54-103
B54-109
1 SPDT NEMA 1 Internal Hex No 3/8" x 2-1/8" 0 to 225
200 to 425
-17.8 to 107.2
93.3 to 218.3
250
425
121.1
218.3


C54-103
C54-109
2 SPDT NEMA 1 Internal Hex No 3/8" x 2-1/8" 0 to 225
200 to 425
-17.8 to 107.2
93.3 to 218.3
250
425
121.1
218.3


C54A-103
C54A-109
Type B54S, C54S/C54AS: Skeleton construction. Brass immersion stem.
1 SPDT Skeleton Yes Yes 3/8" x 2-1/8" 0 to 225
200 to 425
-17.8 to 107.2
93.3 to 218.3
250
425
121.1
218.3
10
10
5
5
B54S-103
B54S-109
1 SPDT Skeleton  Hex No 3/8" x 2-1/8" 0 to 225
200 to 425
-17.8 to 107.2
93.3 to 218.3
250
425
121.1
218.3


C54S-103
C54S-109
2 SPDT Skeleton Hex No 3/8" x 2-1/8" 0 to 225
200 to 425
-17.8 to 107.2
93.3 to 218.3
250
425
121.1
218.3


C54AS-103
C54AS-109
Switch
Output
Enclosure/
Construction
Adjustment Reference
Dial
Bulb Size (OD)
x Stem Length
Adjustable Range Max. Temperature
°F/°C
Scale
Division
Click for Price
and Availability
°F °C °F °C °F °C
E54/F54: Lexan® polycarbonate enclosure. Copper bulb and 6-foot capillary.
1 SPDT NEMA 1 Internal Yes 3/8" x 4-1/2"
3/8" x 7"
3/8" x 4-1/2"
3/8" x 3-3/4"
-130 to 120
0 to 150
50 to 300
150 to 650
-90 to 48.9
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
170
200
350
700
76.7
93.3
176.7
371.1
10
5
10
25
5
5
5
10
E54-D20BC
E54-D21BC
E54-D22BC
E54-D23BC
1 SPDT NEMA 1 Internal Hex No 3/8" x 4-1/2"
3/8" x 7"
3/8" x 4-1/2"
3/8" x 3-3/4"
-130 to 120
0 to 150
50 to 300
150 to 650
-90 to 48.9
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
170
200
350
700
76.7
93.3
176.7
371.1






F54-D20BC
F54-D21BC
F54-D22BC
F54-D23BC
E54/F54: Lexan® polycarbonate enclosure. Stainless steel bulb and 6-foot capillary.
1 SPDT NEMA 1 Internal Yes 3/8" x 4-3/4"
3/8" x 7-1/4"
3/8" x 4-3/4"
3/8" x 4"
-130 to 120
0 to 150
50 to 300
150 to 650
-90 to 48.9
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
170
200
350
700
76.7
93.3
176.7
371.1
10
5
10
25
5
5
5
10
E54-D20BS
E54-D21BS
E54-D22BS
E54-D23BS
1 SPDT NEMA 1 Internal Hex No 3/8" x 7"
3/8" x 4-1/2"
3/8" x 3-3/4"
0 to 150
50 to 300
150 to 650
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
200
350
700
93.3
176.7
371.1




F54-D21BS
F54-D22BS
F54-D23BS
E54S/F54S: Skeleton construction. Copper bulb and 6-foot capillary.
1 SPDT Skeleton Yes Yes 3/8" x 4-1/2"
3/8" x 7"
3/8" x 4-1/2"
3/8" x 3-3/4"
-130 to 120
0 to 150
50 to 300
150 to 650
-90 to 48.9
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
170
200
350
700
76.7
93.3
176.7
371.1
10
5
10
25
5
5
5
10
E54S-D20BC
E54S-D21BC
E54S-D22BC
E54S-D23BC
1 SPDT Skeleton Hex No 3/8" x 4-1/2"
3/8" x 7"
3/8" x 4-1/2"
3/8" x 3-3/4"
-130 to 120
0 to 150
50 to 300
150 to 650
-90 to 48.9
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
170
200
350
700
76.7
93.3
176.7
371.1






F54S-D20BC
F54S-D21BC
F54S-D22BC
F54S-D23BC
E54S/F54S: Skeleton construction. Stainless steel bulb and 6-foot capillary.
1 SPDT Skeleton Yes Yes 3/8" x 4-3/4"
3/8" x 7-1/4"
3/8" x 4-3/4"
3/8" x 4"
-130 to 120
0 to 150
50 to 300
150 to 650
-90 to 48.9
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
170
200
350
700
76.7
93.3
176.7
371.1
10
5
10
25
5
5
5
10
E54S-D20BS
E54S-D21BS
E54S-D22BS
E54S-D23BS
1 SPDT Skeleton Hex No 3/8" x 7"
3/8" x 4-1/2"
3/8" x 3-3/4"
0 to 150
50 to 300
150 to 650
-17.8 to 65.6
10 to 148.9
65.6 to 343.3
200
350
700
93.3
176.7
371.1




F54S-D21BS
F54S-D22BS
F54S-D23BS
More Information
SIL-Rated No
Measured Variable Gauge Pressure, Vacuum/Compound Pressure, Temperature
Enclosure/Construction Skeleton (Open Frame) Construction, NEMA 1
Switch Output SPDT, Dual SPDT
Sensor Type Bellows, Diaphragm, Piston, Immersion Stem, Bulb and Capillary
Adjustment Hex Adjustment, Reference Scale/Dial
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