Earth leakage relay

Earth leakage relays ensure the protection of electrical installations and persons against direct and indirect contacts.


Earth leakage relay are designed on an electronic basis, which ensure the monitoring of earth fault currents. When the fault current rises above the selected level, the outputs of the product operate depending on the relay selected, it can have either fixed or adjustable settings for selectivity purposes.
The earth leakage relays are linked with detection torroids, available in 14 separate types, circular and rectangular in section.


  • positive safety : the relay trips in the event of a break in the relay/core link
  • positive reset required after a fault is detected
  • test button for simulation of a fault
  • protected against nuisance tripping
  • class A
  • supply voltage indication
  • adjustment of sensitivity and time delay (sealable)