Pressure switches for air compressors


  • Pressure switches for use with air compressors
  • The switch ensures automatically starting and stopping of the compressor according to the preset pressure values
  • Electrical contacts: normally closed, made of brass alloy with Ag-Ni surfacing
  • Terminals with M4 screws and 8×8 mm pressure dice
  • Oil-resistant NBR rubber membrane with textile insert
  • ¼” F galvanised steel hydraulic connection
  • Standard protection degree IP 44
  • Max ambient temperature 55°C
  • Tear resistant cable clamps
  • Cover with on/off button
  • Air-relief valve for 6 mm diameter pipe with with instant-closing action for model PTA three phase

APPLICATIONS: Pressure switches for air compressors with three phase motors

PMA/12 PTA/12
Pressure range 3 – 12 bar 3 – 12 bar
Factory settings 6 – 8 bar 6 – 8 bar
Min. differential 1.5 bar 1.5 bar
Max. differential 5 bar 5 bar
Rated current 16 (10) A 16 (10) A
Rated voltage 250 V 500 V


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