5MLSIG, Cutler Hammer, Digitrip RMS, interchangeable Digitrip 520M trip unit or programmer, LSIG - Long-Time, Short-Time, Instantaneous and Ground Fault trip functions, rated for 200 - 6000A, suitable for Magnum DS MDS, MDN, DS, DSL, DSII, DSLII low voltage air circuit breaker frames, solid state electronic trip units