UE 400 Series Multiswitches for General Service Use

Prices starting at:
$255.00
In stock
SKU
400

Pressure, differential pressure and temperature switches for general service applications. Single, dual, or triple SPDT switch output, internal adjustmentby hex or reference dial, NEMA 4X enclosure, sensor materials to meet media and environmental requirements, UL, cUL, FM, CE, ATEX, GOST approvals

United Electric's 400 Series is designed for process applications that require single or multiple switching capabilities. Dual and triple switch versions provide multi-output for alarm and shutdown, pre-alarm and alarm, high/low limit, level staging, or sump liquid level control. A variety of microswitch and wetted material options packaged in a weathertight enclosure make UE's 400 Series a great choice for most general service applications.

Used throughout the process industries, the 400 Series provides threshold protection and control for many critical functions. Typical uses include industrial gas production, power generation, pumps, turbines and compressors, pulp and paper, and water and wastewater treatment applications.

  • Pressure ranges from 30" HgVac to 6000 PSI, differential pressure ranges from 1" WC to 200 PSID, temperature ranges from -120° to 640°F (-85° to 336°C)
  • One, two, or three SPDT switch outputs, may be separated up to 100% of range
  • Internal adjustment hex screw or reference dial
  • Variety of wetted materials to fit most applications
  • NEMA 4X epoxy-coated cast aluminum enclosure
  • UL listed, cUL certified, FM approved, CE compliant; Optional ATEX or GOST intrinsic safety compliance
  • Popular models and ranges normally available from Lesman stock, ready to ship within a business day

Model Selection Guide

Use this table to find the right model for your application. Looking for other ranges, wetted materials or connection sizes? Don't see the option you need? Call a Lesman sales specialist at 800-953-7626.

Sensor Pressure Connection
Adjustment Adjustable
Setpoint Range
Deadband Proof
Pressure
Catalog Number
Material Size 1 SPDT 2 SPDT
UE J400K/J402K Differential Pressure Switches, Single or Dual SPDT Output, Internal Hex Screw Adjustment
Buna-N Diaphragm
and O-Ring
Aluminum 1/8" NPTF Internal Hex Screw 1" to 7" WCD
2" to 20" WCD
5" to 50" WCD
15" to 100" WCD
0.1" to 0.5" WCD
0.5" to 2" WCD
0.5" to 5" WCD
0.5" to 7" WCD
400 PSI N/A J402K-540
J402K-541
J402K-542
J402K-543
Buna-N Diaphragm
and O-Ring
Aluminum 1/8" NPTF Internal Hex Screw 2 to 20 PSID
5 to 50 PSID
10 to 100 PSID
20 to 200 PSID
1 to 2.5 PSI
1 to 3 PSI
1 to 5 PSI
1 to 7 PSI
2500 PSI N/A J402K-544
J402K-545
J402K-546
J402K-547
Buna-N Diapragm
and O-Ring
Aluminum 1/4" NPTF Internal Hex Screw 5" to 80" WCD
2 to 20 PSID
3 to 30 PSID
1" to 4" WC
0.1 to 0.3 PSI
0.1 to 0.4 PSI
225 PSI J400K-455
J400K-456
J400K-457
J402K-455
J402K-456
J402K-457
Brass Bellows Nickel-Plated
Brass
1/4" NPTF Internal Hex Screw 3 to 30 PSID
10 to 100 PSID
0.5 to 2 PSI
0.5 to 3 PSI
180 PSI J400K-147
J400K-157
J402K-147
J402K-157
Teflon, Buna-N Diaphragm
Buna-N O-Ring
Aluminum 1/4" NPTF Internal Hex Screw 10 to 100 PSID 0.2 to 1 PSI 225 PSI J400K-559 J402K-559
Welded 316L
Stainless Steel Bellows
316L SS 1/2" NPTF Internal Hex Screw 3 to 30 PSID
10 to 100 PSID
0.5 to 2 PSI
0.5 to 3 PSI
300 PSI J400K-S147B
J400K-S157B
J402K-S147B
J402K-S157B
UE H400K/H402K Differential Pressure Switches, Single or Dual SPDT Output, Internal Adjustment via Reference Dial
Buna-N Diaphragm
and O-Ring
Aluminum 1/4" NPTF Internal Reference Dial 5" to 80" WCD
2 to 20 PSID
3 to 30 PSID
1" to 4" WC
0.1 to 0.3 PSI
0.1 to 0.4 PSI
225 PSI H400K-455
H400K-456
H400K-457
H402K-455
H402K-456
H402K-457
Teflon, Buna-N Diaphragm
Buna-N O-Ring
Aluminum 1/4" NPTF Internal Reference Dial 10 to 100 PSID 0.2 to 1 PSI 225 PSI H400K-559 H402K-559

 

Sensor Type
and Material
Pressure Connection Adjustable
Setpoint Range
Deadband Proof Pressure Catalog Number
Material Size 1 SPDT 2 SPDT 3 SPDT
H400/H402/H403 Pressure Switches, Internal Adjustment via Reference Dial  (+ Have Zinc-Plated Steel Spring Exposed to Media)
Teflon Diaphragm
Viton O-Ring
316L SS 1/4" NPTF 30" HgVac to 0 PSI
30" HgVac to 20 PSI
0 to 20 PSI
0 to 30 PSI
0 to 100 PSI
0.1" to 0.6" Hg
0.2" to 1" Hg
0.05 to 0.3 PSI
0.1 to 0.4 PSI
0.25 to 0.75 PSI
225 PSI H400-550
H400-552
H400-553
H400-554
H400-555
H402-550
H402-552
H402-553
H402-554
H402-555
N/A
Brass Bellows Nickel-Plated
Brass
1/4" NPTF 30" HgVac to 0 PSI
30" HgVac to 20 PSI
0" to 80" WC
0 to 20 PSI
0 to 30 PSI
0 to 100 PSI
0 to 200 PSI
0.2" to 0.9" Hg
0.2" to 1.2" Hg
2" to 6" WC
0.1 to 0.5 PSI
0.1 to 0.6 PSI
0.2 to 0.8 PSI
0.3 to 2 PSI
5 PSI
25 PSI
5 PSI
25 PSI
40 PSI
125 PSI
200 PSI
H400-126 +
H400-134 +
H400-137
H400-144
H400-146
H400-156
H400-164
H402-126 +
H402-134 +

H402-144
H402-146
H402-156
H402-164
H403-126 +
H403-134 +

H403-144
H403-146
H403-156
H403-164
Buna-N Diaphragm
and O-Ring
Aluminum 1/4" NPTF 0" to 10" WC
0" to 20" WC
0" to 80" WC
80" WC Vac to 0 PSI
30" HgVac to 0 PSI
30" HgVac to 20 PSI
0 to 20 PSI
0 to 30 PSI
0.15" to 0.4" WC
0.2" to 0.6" WC
0.5" to 2" WC
1" to 3" WC
0.1" to 0.04" Hg
0.1" to 1" Hg
0.05 to 0.2 PSI
0.05 to 0.3 PSI
225 PSI H400-441
H400-442
H400-443
H400-448
H400-450
H400-452
H400-453
H400-454




H402-450
H402-452
H402-453
H402-454
N/A
Welded 316L
Stainless Steel Bellows
316L SS 1/2" NPTF 30" HgVac to 0 PSI
30" HgVac to 20 PSI
0" to 80" WC
0 to 20 PSI
0 to 30 PSI
0 to 100 PSI
0 to 200 PSI
0.2" to 0.9" Hg
0.2" to 1.2" Hg
2" to 6" WC
0.1 to 0.5 PSI
0.1 to 0.6 PSI
0.2 to 0.8 PSI
0.3 to 2 PSI
5 PSI
25 PSI
5 PSI
25 PSI
40 PSI
125 PSI
200 PSI
H400-S126B
H400-S134B
H400-S137B
H400-S144B
H400-S146B
H400-S156B
H400-S164B
H402-S126B
H402-S134B

H402-S144B
H402-S146B
H402-S156B
H402-S164B
H403-S126B
H403-S134B

H403-S144B
H403-S146B
H403-S156B
H403-S164B
Welded 316L
Stainless Steel Bellows
316L SS 1/4" NPTF 0 to 200 PSI
0 to 300 PSI
0 to 500 PSI
1.5 to 8 PSI
2 to 9 PSI
3 to 12 PSI
250 PSI
350 PSI
575 PSI
H400-358
H400-361
H400-376
H402-358
H402-361
H402-376
H403-358
H403-361
H403-376
Phosphor Bronze
Bellows
Nickel-Plated
Brass
1/4" NPTF 0 to 200 PSI
0 to 300 PSI
1.5 to 8 PSI
2 to 10 PSI
250 PSI
350 PSI
H400-270
H400-274
H402-270
H402-274
N/A
J402 Pressure Switches, Internal Hex Screw Adjustment, 0.72" Orifice for Clean-Out Purposes
Buna-N Diaphragm
and O-Ring
Aluminum 1/2" NPTF 300" Vac to 0" WC
10" Vac to 0" WC
50" Vac to 0" WC
0.5" to 5.0" WC
2.5" to 50" WC
10" to 250" WC
0.2" to 12" WC
0.1" to 1" WC
0.1" to 5" WC
0.1" to 0.3" WC
0.1" to 2" WC
0.1" to 10" WC
200 PSI N/A J402-520
J402-521
J402-522
J402-523
J402-524
J402-525
N/A
J400/J402/J403 Pressure Switches, Internal Hex Screw Adjustment  (+ Models Have Zinc-Plated Steel Spring Exposed to Media)
Brass Bellows Nickel-Plated
Brass
1/4" NPTF 30" HgVac to 0 PSI
30" HgVac to 20 PSI
0" to 80" WC
0 to 20 PSI
0 to 30 PSI
0 to 100 PSI
0 to 200 PSI
0.2" to 0.9" Hg
0.2" to 1.2" Hg
2" to 6" WC
0.1 to 0.5 PSI
0.1 to 0.6 PSI
0.2 to 0.8 PSI
0. 3 to 2 PSI
5 PSI
25 PSI
5 PSI
25 PSI
40 PSI
125 PSI
200 PSI
J400-126 +
J400-134 +
J400-137
J400-144
J400-146
J400-156
J400-164
J402-126 +
J402-134 +
J402-137
J402-144
J402-146
J402-156
J402-164
J403-126 +
J403-134 +
J403-137
J403-144
J403-146
J403-156
J403-164
Buna-N Diaphragm
and O-Ring
Aluminum 1/4" NPTF 0" to 2" WC
0" to 10" WC
0" to 20" WC
0" to 80" WC
0" to 20" WC
0" to 80" WC
0 to 20 PSI
0 to 30 PSI
0.07" to 0.25" WC
0.15" to 0.4" WC
0.2" to 0.6" WC
0.5" to 2" WC
1" to 2" WC
1" to 3" WC
0.05 to 0.2 PSI
0.05 to 0.3 PSI
225 PSI J400-440
J400-441
J400-442
J400-443
J400-449
J400-451
J400-453
J400-454

J402-441
J402-442
J402-443
J402-449
J402-451
J402-453
J402-454


J403-442
J403-443

J403-451
J403-453
J403-454
Buna-N Diaphragm
and O-Ring
Stainless Steel 1/4" NPTF 80" WC Vac to 0 PSI
30" HgVac to 0 PSI
30" HgVac to 20 PSI
1" to 3" WC
0.1" to 0.4" Hg
0.2" to 1" Hg
225 PSI J400-448
J400-450
J400-452
J402-448
J402-450
J402-452
J403-448
J403-450
J403-452
Teflon Diaphragm
Viton O-Ring
316L SS 1/4" NPTF 30" HgVac to 0 PSI
0" to 80" WC
30" HgVac to 20 PSI
0 to 20 PSI
0 to 30 PSI
0 to 100 PSI
0.1" to 0.6" Hg
1.5" to 3.5" WC
0.2" to 1" Hg
0.05 to 0.3 PSI
0.1 to 0.4 PSI
0.25 to 0.75 PSI
225 PSI J400-550
J400-551
J400-552
J400-553
J400-554
J400-555
J402-550
J402-551
J402-552
J402-553
J402-554
J402-555
J403-550
J403-551
J403-552
J403-553
J403-554
J403-555
316L Stainless Steel
Diaphragm, Viton O-Ring
316L SS 1/4" NPTF 0 to 20 PSI
0 to 50 PSI
0 to 100 PSI
0.2 to 4 PSI
0.7 to 6 PSI
1 to 7 PSI
225 PSI J400-570
J400-571
J400-572
J402-570
J402-571
J402-572
J403-570
J403-571
J403-572
Phosphor Bronze
Bellows
Nickel-Plated
Brass
1/4" NPTF 0 to 200 PSI
0 to 300 PSI
1.5 to 8 PSI
2 to 10 PSI
250 PSI
350 PSI
J400-270
J400-274
J402-270
J402-274
J403-270
J403-274
Welded 316L
Stainless Steel Bellows
316L SS 1/4" NPTF 0 to 200 PSI
0 to 300 PSI
0 to 500 PSI
1.5 to 8 PSI
2 to 9 PSI
3 to 12 PSI
250 PSI
350 PSI
575 PSI
J400-358
J400-361
J400-376
J402-358
J402-361
J402-376
J403-358
J403-361
J403-376
Welded 316L
Stainless Steel Bellows
316L SS 1/2" NPTF 30" HgVac to 0 PSI
30" HgVac to 20 PSI
0" to 80" WC
0 to 20 PSI
0 to 30 PSI
0 to 100 PSI
0 to 200 PSI
0.2" to 0.9" Hg
0.2" to 1.2" Hg
2" to 6" WC
0.1 to 0.5 PSI
0.1 to 0.6 PSI
0.2 to 0.8 PSI
0. 3 to 2 PSI
5 PSI
25 PSI
5 PSI
25 PSI
40 PSI
125 PSI
200 PSI
J400-S126B
J400-S134B
J400-S137B
J400-S144B
J400-S146B
J400-S156B
J400-S164B
J402-S126B
J402-S134B
J402-S137B
J402-S144B
J402-S146B
J402-S156B
J402-S164B
J403-S126B
J403-S134B
J403-S137B
J403-S144B
J403-S146B
J403-S156B
J403-S164B
J400/J402/J403 Pressure Switches, Internal Hex Screw Adjustment  (Not recommended for gas service since drying of O-ring seal can allow bleeding of medium into the atmosphere.)
303 Stainless Steel Piston
Buna-N O-Ring
303 SS 1/4" NPTF 100 to 1000 PSI
200 to 3000 PSI
500 to 6000 PSI
30 to 150 PSI
40 to 250 PSI
50 to 400 PSI
10000 PSI J400-610
J400-612
J400-614
J402-610
J402-612
J402-614
J403-610
J403-612
J403-614

 

Bulb OD
x Stem Length
Adjustment Adjustable Range Max Temperature Scale Division Catalog Number
°F °C °F °C °F °C 1 SPDT 2 SPDT 3 SPDT
E400/E402/E403 Temperature Switches: 304 Stainless Steel Bulb with 6-Foot Capillary
3/8" OD x 2-5/8"
3/8" OD x 5"
3/8" OD x 6-3/4"
3/8" OD x 2-5/8"
3/8" OD x 2-1/8"
3/8" OD x 3-1/4"
Internal via
Reference Dial
-120° to 100°
-20° to 80°
25° to 100°
30° to 250°
100° to 400°
350° to 640°
-84.4° to 37.8°
-28.9° to 26.7°
-3.9° to 37.8°
-1.1° to 121.1°
37.8° to 204.4°
176.7° to 337.8°
150°
130°
150°
300°
450°
690°
65.6°
54.4°
65.6°
148.9°
232.2°
365.6°
10°


10°
10°
10°




10°
10°
E400-2BSA
E400-5BS
E400-4BS
E400-2BSB
E400-3BS
E400-8BS
E402-2BSA
E402-5BS
E402-4BS
E402-2BSB
E402-3BS
E402-8BS
E403-2BSA
E403-5BS
E403-4BS
E403-2BSB
E403-3BS
E403-8BS
Stem OD x Length
Below 1/2" Thread
Adjustment Adjustable Range Max Temperature Scale Division Catalog Number
°F °C °F °C °F °C 1 SPDT 2 SPDT 3 SPDT
B400/B402/B403/C400/C402/C403 Temperature Switches: Nickel-Plated Brass Immersion Stem
9/16" OD x 1-7/8" BT Internal via
Reference Dial
0° to 225°
200° to 425°
-17.8° to 107.2°
93.3° to 218.3°
275°
475°
135°
246.1°
B400-120
B400-121
B402-120
B402-121
B403-120
B403-121
9/16" OD x 1-7/8" BT Internal via
Hex Screw
0° to 225°
200° to 425°
-17.8° to 107.2°
93.3° to 218.3°
275°
475°
135°
246.1°
C400-120
C400-121
C402-120
C402-121
C403-120
C403-121
More Information
Measured Variable Differential Pressure, Gauge Pressure, Vacuum/Compound Pressure, Temperature
Enclosure/Construction NEMA 4X
Switch Output SPDT, DPDT, Dual SPDT, Triple SPDT
Sensor Type Bellows, Diaphragm, Piston, Immersion Stem, Bulb and Capillary
Adjustment Internal Adjustment, Hex Adjustment, Reference Scale/Dial
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