Tripping Relay is a microprocessor based Motor Protection Relay with 4 digits LED Display Features :- 4 Digit LED display Measurement of RYB, Zero Sequence current and Thermal capacity. Separate LED’s for indication of Motor operational, Trip & Thermal OL pre-alarm status. Programmable thermal OL time constant right from 1 sec to 40 sec. 2 nos. of CO output contacts. Relay testing facility Trip data recording Fault current or cause of last trip is displayed.