Rishabh Instruments Pvt. Ltd. Protection Relays & Systems RISH RELAY I-3-2001-HA

RISH Relay I is a three-phase current protection relay designed for over current, under current, current loss, and current unbalance protection in electrical systems. It features a 4-digit 7-segment LED display, True RMS measurement up to the 15th harmonic, and dual-color LED fault indication. The relay supports configurable CT secondary inputs from 1 A to 5 A and primary inputs from 1 A to 999 kA, with adjustable set points and time delays for all protection functions. It operates with auxiliary supply voltages of 60 V to 300 V AC/DC, includes IDMT overcurrent curves, and allows user programming of 1P2W, 3P3W, or 3P4W network configurations via front-panel keys. The device provides two changeover relay outputs, auto/manual reset, and complies with IEC 61010-1-2010 and IEC 61326-1 standards.