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The 660 Electronic control relay for detecting a rising water level, it has a medium power relay inside its waterproof enclosure, which operated by water reaching the trip level, and can be used to control alarms or other equipment
The relay is normally energized when the power is applied and no water is present  When water rises and activates the sensor the relay drops out. This sequence is fail-safe, allowing the 660 to be used as a water spillage alarm switch, or turn off a a valve or stop an air conditioning unit before the water overflows its container.

  • Small enough to be used in restricted spaces
  • Water detection with accurate switching level
  • All components encapsulated against moisture ingress
  • Switch-off height 0.43" (1.1 cm)
  • Switch-on reset 0.31" (0.8 cm)
  • Switching capability 5 amps at 250 VAC
  • LED for power and alarm indication
  • Power supply 11 to 27 VAC or VDC 1.Watt