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

The earth leakage relays are linked with detection torroids, available in 14 separate types, circular and rectangular in section.
Characteristics
- 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)