Switches > Differential Pressure Switches > UE 100 and 120 Series

 

United Electric (UE) Differential Pressure Switches for Ultra-Low Pressure Ranges

UE differential pressure switches provide low adjustable ranges with high working (static) pressures. Models 540-543 use a large diaphragm sensor for accurate, repeatable performance at low pressures. Models 544-548 handle higher pressures with a compact design.

The aluminum sensor housings are epoxy coated for corrosion resistance in harsh environments and are suitable for use with fluids, air and gas media in a variety of applications in processing, power, and OEM markets.

Key Specifications

  • Low Adjustable Pressure Ranges with High Working Pressures
  • Explosion-Proof or General Purpose Enclosures
  • Corrosion-Resistant Epoxy Coated Aluminum Sensor Housing
  • Suitable for Fluids, Air, and Gas Media
  • UL Listed, CSA Approved, CE Compliant, CENELEC

Specifications, Manuals, and Supporting Literature

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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

Adjustable
Range
Typical
Deadband
Maximum
Working
Pressure*
Proof
Pressure
Catalog
Number
100 Series: General Service, NEMA 4X/IP65 Housing
0.2 to 7" WC
1 to 20" WC
5 to 50" WC
10 to 200" WC
2 to 20 PSI
5 to 50 PSI
10 to 125 PSI
50 to 250 PSI
100 to 500 PSI
0.05 — 0.6" WC
0.1 — 1.0" WC
0.2 — 2.5" WC
0.5 — 8" WC
0.1 — 1.3 PSI
0.2 — 2.2 PSI
0.4 — 5.0 PSI
0.8 — 10 PSI
2.0 — 15 PSI
200 PSI
200 PSI
200 PSI
200 PSI
1200 PSI
1200 PSI
1200 PSI
1200 PSI
1200 PSI
400 PSI
400 PSI
400 PSI
400 PSI
2500 PSI
2500 PSI
2500 PSI
2500 PSI
2500 PSI
H100K-540
H100K-541
H100K-542
H100K-543
H100K-544
H100K-545
H100K-546
H100K-547
H100K-548
120 Series: Explosion-Proof Flameproof, NEMA 4X,7,9;
IP66 Housing, Class I and II, Div 1,2 Approvals; UL Listed, cUL certified, ATEX
0.2 to 7" WC
1 to 20" WC
5 to 50" WC
10 to 200" WC
2 to 20 PSI
5 to 50 PSI
10 to 125 PSI
50 to 250 PSI
100 to 500 PSI
0.05 — 0.6" WC
0.1 — 1.0" WC
0.2 — 2.5" WC
0.5 — 8" WC
0.1 — 1.3 PSI
0.2 — 2.2 PSI
0.4 — 5.0 PSI
0.8 — 10 PSI
2.0 — 15 PSI
200 PSI
200 PSI
200 PSI
200 PSI
1200 PSI
1200 PSI
1200 PSI
1200 PSI
1200 PSI
400 PSI
400 PSI
400 PSI
400 PSI
2500 PSI
2500 PSI
2500 PSI
2500 PSI
2500 PSI
J120K-540
J120K-541
J120K-542
J120K-543
J120K-544
J120K-545
J120K-546
J120K-547
J120K-548

* Minimum working pressure on all ranges is 30" Hg

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