Vacuum Switch PSF102-712

In stock

This long life (20 million + cycles), ultra sensitive pressure switch regulates the EV brake vacuum system by activating the 12v vacuum pump circuit. The switch has field adjustable setpoint ranges from 2 in H2O to 15 in H2O see the "Specifications" and "Manuals and Downloads" tab for additional details.

We recommend using this switch to drive an automotive relay for the vacuum pump circuit - this will increase switch contact life. 


  • Standard Tolerance: 2in H20 - 15in H20
  • Switching Medium: Air
  • Mechanical Life: More than 20 million cycles
  • Maximum Operating Pressure: 8 psi
  • Operating Temp: +40 F to +150 F


  • Case Material: Polycarbonate
  • Contact Points: Gold
  • Barbed Port: 3/16" ID tubing w/out mtg. lugs
  • Electrical Connections: Terminals .18" x .020 spade (recessed for use with quick disconnects uninsulated
  • Mounting: #2 Screws through eyelets
  • Weight: Less than 10 grams


  • Current Rating: Up to 40mA resistive
  • Operating Voltage: DC - 30V or less with resistive load

Included Components

  • Vacuum Switch
  • 3/16" female spade terminals
  • Shrink wrap