Earth Leakage Relay

A precision safety device called an Earth Leakage Relay (ELR) is designed to identify even the smallest current leaks to the ground, shielding workers and equipment from electric shocks and system failures. Through constant observation of the equilibrium between incoming and outgoing currents, it identifies insulation failures or unintended earth connections and acts swiftly to isolate the fault.

Offering selectable leakage sensitivity from 30 mA to 30 A and trip delay up to 10 seconds, it features advanced nano-crystalline CBCT for pinpoint accuracy, instantaneous trip at 5x threshold, LED fault indicators, and RS-485 communication. With manual or remote reset and wide auxiliary voltage compatibility, it ensures dependable protection in control panels, mining systems, variable-speed drives, HVAC setups, and industrial safety infrastructure.