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Instantly add the 400 Series Type J403 Models 442 & 443 Pressure Switch and 50,000+ more product series to your store or catalog  
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United Electric Pressure Switch, 400 Series Type J403 Models 442 & 443

400 Series Type J403 Models 442 & 443 Pressure Switch

Brand: United Electric Controls Ltd
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United Electric Pressure Switch, 400 Series Type J403 Models 442 & 443
The 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for 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 or level staging functions. 

A wide variety of microswitch and process connection options, along with a weather-tight enclosure, make the 400 Series an ideal choice for most ordinary location applications. Its worldwide use is assured with approvals and certifications to agency standards. 

Widely used throughout the process industries, the 400 Series provides threshold protection and control for many critical functions. 

Typical installations are found in industrial gas production, energy generation including pumps, turbines and compressors, pulp and paper, and water and wastewater treatment.
Features
  • Epoxy-coated enclosure designed to meet enclosure Type 4X 
  • Wide variety of pressure sensors and materials 
  • Setting via reference dial or hex screw adjustment 
  • FM Approved

1 - 12 of 648 Part Numbers
J403-442
J403-442
  • Model - 442
  • Factory Set Point - No Factory Set Point
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - No Mounting Kit
  • Electrical Connection - One 3/4” NPT & Two 7/8” Diameter Knockouts
J403-442-6361-704
J403-442-6361-704
  • Model - 442
  • Factory Set Point - No Factory Set Point
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - One 3/4” NPT & Two 7/8” Diameter Knockouts
J403-442-6361-704-M900
J403-442-6361-704-M900
  • Model - 442
  • Factory Set Point - No Factory Set Point
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - Converts 7/8” Hole to 1/2” NPT Watertight Conduit Fitting
J403-442-6361-704-SD6286-51
J403-442-6361-704-SD6286-51
  • Model - 442
  • Factory Set Point - No Factory Set Point
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - Connects 7/8” Hole to 1/2” Female NPT Watertight Conduit Fitting
J403-442-M203
J403-442-M203
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - No Mounting Kit
  • Electrical Connection - One 3/4” NPT & Two 7/8” Diameter Knockouts
J403-442-M203-6361-704
J403-442-M203-6361-704
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - One 3/4” NPT & Two 7/8” Diameter Knockouts
J403-442-M203-6361-704-M900
J403-442-M203-6361-704-M900
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - Converts 7/8” Hole to 1/2” NPT Watertight Conduit Fitting
J403-442-M203-6361-704-SD6286-51
J403-442-M203-6361-704-SD6286-51
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - Standard psi or bar
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - Connects 7/8” Hole to 1/2” Female NPT Watertight Conduit Fitting
J403-442-M203-M277
J403-442-M203-M277
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - kPa or MPa
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - No Mounting Kit
  • Electrical Connection - One 3/4” NPT & Two 7/8” Diameter Knockouts
J403-442-M203-M277-6361-704
J403-442-M203-M277-6361-704
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - kPa or MPa
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - One 3/4” NPT & Two 7/8” Diameter Knockouts
J403-442-M203-M277-6361-704-M900
J403-442-M203-M277-6361-704-M900
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - kPa or MPa
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - Converts 7/8” Hole to 1/2” NPT Watertight Conduit Fitting
J403-442-M203-M277-6361-704-SD6286-51
J403-442-M203-M277-6361-704-SD6286-51
  • Model - 442
  • Factory Set Point - Factory Set Three Switches
  • Measurement Range - kPa or MPa
  • Agency Approvals - Without Additional Approvals
  • Tag - No Tag
  • Mounting - Surface & Pipe Mounting Kit
  • Electrical Connection - Connects 7/8” Hole to 1/2” Female NPT Watertight Conduit Fitting
1 - 12 of 648 Part Numbers

View_Details

Specifications

Brand

Adjustment Type

  • Captive Clamp Screws
  • Factory Set (Pre-Set)
  • Set Point Adjustment

Ambient Temperature Range

  • -40° to 71° C (-40° to 160° F), Set Point Typically Shifts less than 1 % of Range for Limits A 28° C (50° F) Ambient Temperature Change

Applications

  • Energy Generation Including Pumps
  • Industrial Gas Production
  • Pulp & Paper
  • Turbines & Compressors
  • Water & Wastewater Treatment

Approvals & Certifications

  • ISO 9001

Approvals & Certifications

  • ATEX Ex directive (94/9/EC) II 1 G Ex ia IIC T6 Ga Tamb: -50° to 60° C (-58° to 140° F)
  • CE
  • CSA C22.2 No. 14, File # E42272
  • FM Class 3545
  • GOST-R 51330.0, 51330.1, 51330.10 & 51330.14
  • Low Voltage Directive (LVD) 2006/95/EC
  • PED: 97/23/EC
  • UL (C,US) 508
  • UR

Deadband

  • Inches WC: 0.4 to 4
  • psi: 0.01 to 0.145 (kPa: 0.1 to 1.0, Mbar: 1.0 to 10)

Diaphragm Material

  • Buna-N

Electrical Connectors

  • 7/8” Hole to 1/2” NPT Female Watertight Conduit Fitting
  • One 3/4” NPT
  • Screw Terminal
  • Two 7/8” Diameter Knockouts

Electrical Contacts

  • Normally Closed
  • Normally Open

Electrical Rating

  • 15 A at 125/250/480 Vac Resistive

Enclosure Finish

  • Epoxy Powder-Coated

Enclosure, Body Material

  • Gasketed Die Cast Aluminum

Environmental Protection

  • Intrinsically Safe
  • IP66
  • NEMA 4X
  • Weathertight

Mounting

  • Hole
  • Pipe
  • Surface

Name Plate, Tag Material

  • Stainless Steel, Paper ID Tag & Wire Attachment

NPT Connection

  • 1/4” NPT Female

O-Ring Material

  • Buna-N

Overpressure & Static Pressure Limits

  • Over Range Pressure - psi: 3 (kPa: 20.7, bar: 0.2)

Process Connection Material

  • Aluminum

Proof Pressure

  • psi: 225 (kPa: 1,551, bar: 15.5)

Repeatability

  • Set Point Repeatability: ± 1 % of Full Scale Range

Set Point - Decreasing

  • bar: 0 to 0.2
  • Inches WC: 0 to 80
  • kPa: 0 to 20
  • psi: 0 to 2.9

Set Point - Increasing

  • bar: 0 to 0.2
  • Inches WC: 0 to 80
  • kPa: 0 to 20
  • psi: 0 to 2.9

Shock

  • Set Point Repeats after 15 G, 10 millisecond Duration

Storage Temperature

  • -54° to 71° C (-65° to 160° F)

Switch Type

  • Three SPDT Switch, may be separated up to 100 % of Range

System Pressure

  • bar: 0.2
  • kPa: 206.8
  • mbar: 206.8
  • psi: 3

Vibration

  • Set Point Repeats after 2.5 G, 5 to 500 Hz

Documentation

Data Sheets

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