SIEMENS LOW VOLTAGE ENCLOSED SENTRON MOLDED CASE CIRCUIT BREAKER (ASSEMBLED) WITH MAGNETIC ONLY TRIP UNIT. 1200A 3-POLE 600V MOLDED CASE SWITCH (BREAKER) ND FRAME WITH STANDARD BREAKING CAPACITY (NXD63S120A). NON-INTERCHANGEABLE TRIP UNIT.NEMA TYPE 3R ENCLOSURE (MND63). ORDER NEUTRAL (W63623). INCLUDES LINE AND LOAD SIDE LUGS (TA4N8500) WIRE RANGE 250 - 500KCMIL (CU/AL). ENCLOSURE DIMENSIONS (W x H x D) IN 26.75 x 61.14 x 11.72.