PW336i(6*15A,4*150V)is a powerful secondary injection relay tester with 6-currents and 4-voltages sources.This advanced relay testing set is capable of testing differential relay easily without changing cable connection.Optional upgrade is available to support the test of IEC61850 relay. Features 6*15A, 4*150V Aux DC (0-300V), DC measuring inputs 8 binary inputs, 4 binary outputs Adjustable threshold (0-400V) for binary inputs In-built analog monitoring and recording function Can be upgraded to support the test of IEC61850 complied relay