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.
•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
– Rotary knob with scale
•Cable socket with circuitry (indicator lamp) – separate order