Earth Leakage Relay

Selec's earth leakage relay (ELR) ensures robust protection against dangerous leakage currents in single-phase and three-phase electrical systems. It accurately monitors true RMS earth leakage current ranging from 10 mA to 30 A, promptly tripping the load within 50 msec for 1x leakage and 30 msec for 5x leakage, thus safeguarding human life and equipment from electrical hazards. Available in analog and digital models, this relay features CBCT short or open detection, a trip time delay from 0 seconds to 9 seconds, and versatile mounting options (DIN, wall, and panel). They are ideal for applications including motors, UPS systems, transformers, and more.