The TERASAKI EIN-1201 is a high-performance, microprocessor-based Earth Leakage Relay (ELR) designed to provide reliable protection for electrical systems against hazardous earth fault currents. This versatile relay features adjustable sensitivity (IΔn) and time delay settings, allowing for precise customization to prevent nuisance tripping while ensuring maximum safety. Ideal for industrial and commercial applications, the EIN-1201 enhances the protection of both personnel and equipment by rapidly detecting and isolating ground faults. Its compact, DIN rail mountable design facilitates easy installation and integration into various electrical panels and switchboards.