- Earth leakage relay type A
- 1 operation thresholds
- External toroidal transformer
- Adjustable tripping IΔn and delay time
- Front TEST and RESET buttons
- Automatic or manual resetting
- Flag indicator (ELR-4m type
Measure, Counters, Signalization > Differential relays for LV > ELR-4 | ELR- 4m
