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03-34097 Binary Pressure Switch

Female Binary Switch


Low Pressure High Pressure
Part Number Fitting Type Off On Off Cross Ref Mfg Electrical Boot
03-34070 Female M10 Metric Normally open 26.5-30.5 224-230 309-315 71R7077 Fujikoki/Porch 03-13036

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Product Description

How a Binary Switch Works

  • Prevents the compressor from operating of system charge is lost or ambient temperature is too low
  • Stops compressor if head pressure increases to unsafe levels
  • Automatically resets when pressure drops back to normal


  • Install binary switch on liquid side of A/C system between condenser and expansion valve
  • Compatible with R-12 and R134a systems