Rishabh Instruments Pvt. Ltd. Protection Relays & Systems AR-1-2-2

The AR-1-2-2 is a single-phase current protection relay for monitoring overload, undercurrent, and unbalance in motors, gensets, and transformers. It has adjustable overcurrent (30-140%) and undercurrent (10-95%) trip points with 0-10 s variable delay and 5-50% hysteresis. True RMS measurement handles harmonics up to the 15th. Normal input current ranges from 1 A to 5 A, with auxiliary supply from 60-300 V AC/DC. It features LED fault indication, auto/manual reset via front key, and two relay contacts rated 5 A at 250 V AC or 30 V DC. Operating temperature is -10 to +55°C, with IP20 enclosure and compliance to IEC 61010-1-2010. Weight is approximately 175 g.