Hydro-electric pressure switches of model HED 8 are piston-type pressure switches used to monitor a pressure value in a circuit. As a pressure value is achieved (rising or falling), the HED micro-switch changes state, which can be used as an indicator for the next sequential operation or shutdown. The HED microswitch is not a current carrying device; it is an actuator/sensor. 

Features

• For subplate mounting
• For in-pipe installation
• As vertical stacking element, position of ports to DIN 24340 form A
• In horizontal stacking assemblies
• Five pressure stages, optional
• Adjustment option: 
  – Rotary knob with scale
• Cable socket with circuitry (indicator lamp) – separate order