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Original Compressor Pressure Switch Dwyer CX Series

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Original Compressor Pressure Switch Dwyer CX Series


 Compressor Pressure Switch Dwyer  CX  Series

  • The Series CX Compressor Pressure Switches are designed with a 20 amp normally closed SPST switch for direct control of pumps and motors.
  • The set point and deadband are both easily adjustable via screw terminals inside the cover.
  • For ease of installation, the switches come with a 1/4" female NPT process connection or the optional 4-port connection block on the CX-4 models.
  • Besides making installation easier, one of the other ports can be used to install a pressure gage. Plus, these switches can be mounted in any orientation.         

Models & Ordering:

Model Number Description
CX-11 Compressor pressure switch, 1 port, range 25-100 psig (1.7-6.9 bar), approx. adj. deadband 20-30 psig (1.4-2.1 bar), max. pressure 129 psig (8.9 bar).
CX-12 Compressor pressure switch, 1 port, range 35-150 psig (2.4-10.3 bar), approx. adj. deadband 30-40 psig (2.1-2.8 bar), max. pressure 179 psig (12.3 bar).
CX-13 Compressor pressure switch, 1 port, range 50-175 psig (3.4-12.1 bar), approx. adj. deadband 35-55 psig (2.4-3.8 bar), max. pressure 204 psig (14.1 bar).
CX-41 Compressor pressure switch, 4 ports, range 25-100 psig (1.7-6.9 bar), approx. adj. deadband 20-30 psig (1.4-2.1 bar), max. pressure 129 psig (8.9 bar).
CX-42 Compressor pressure switch, 4 ports, range 35-150 psig (2.4-10.3 bar), approx. adj. deadband 30-40 psig (2.1-2.8 bar), max. pressure 179 psig (12.3 bar).
CX-43 Compressor pressure switch, 4 ports, range 50-175 psig (3.4-12.1 bar), approx. adj. deadband 35-55 psig (2.4-3.8 bar), max. pressure 204 psig (14.1 bar).

 

 

Specifications: 

  • Service:Air and non-combustible compatible gases.
  • Wetted Materials:NBR (Nitrile-Butadiene) rubber diaphragm, steel connection (CX-1), aluminum alloy connection (CX-4).
  • Temperature Limits:140°F (60°C).
  • Pressure Limits:See Ordering page.
  • Enclosure Rating:General purpose.
  • Repeatability:±5 psig (±0.3 bar).
  • Switch Type:2 each SPST snap action, normally closed (NC).
  • Electrical Ratings:20 A @ 120 VAC, 12 A @ 240 VAC, 9.6 A @ 240 VAC (3 phase), 8.6 A @ 32 VDC, 3.1 A @ 120 VDC, 1.6 A @ 240 VDC. 1.5 HP @ 120 VAC, 2 HP @ 240 VAC, 3 HP @ 240 VAC (3 phase), 0.25 HP @ 32/120/240 VDC.
  • Electrical Connections:Screw terminal.
  • Conduit Connection:7/8" hole for 1/2" conduit hub (2 places).
  • Process Connection:1/4" female NPT (CX-4: 4 places).
  • Mounting Orientation:Switch can be installed in any position.
  • Setpoint Adjustment:Internal screws.
  • Weight:CX-1: 0.78 lb (0.35 kg); CX-4: 1.03 lb (0.47 kg).
  • Deadband:See Ordering page.
  • Agency Approval:CE.

                                                

About Us

About Us

Xi`an Ao Xin Automation Instrument Co., Ltd., is located in Xi`an city which is the authoritive centre of instrument and gauge .It is cooperated with many related domestic cooperation to research ,sale and service and also obtained the cert of ISO9001-2008. overall strength of the industry 's leading domestic well-known enterprises .Over the years, the company under the "integrity, innovation , development and harmony " principle of service .

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