HFXD63B150, 3 Pole 150A 600V Type HFD6 is a high interrupting industrial Non-Interchangeable thermal unit, Sentron molded case FD frame. This is Siemens industrial heavy duty frame. This HFXD63B150, will accept field installable shunt trip mechanisms and auxiliaries switches for remote operations and is non-interchangeable trip units. Identified by Black label. Molded case, thermal magnetic, FD or FXD frame, 600 VAC at 50/60 HZ, 500 VDC, 70-250A ampere at 40 deg c, 3 pole, interrupting rating 100 kiloampere at 240 VAC, 65 kiloampere at 480 VAC, 25 kiloampere at 600 VAC/500 VDC (ul), 100 kiloampere at 220/240 VAC, 65 kiloampere at 380/415 VAC, 42 kiloampere at 500 VAC (iec), terminal line lug, load lug, size 4.5 inch w x 5.25 inch d x 9.5 inch h, sentron[r] brand, hfxd6 model, ics rating 50 kiloampere at 220/240 VAC, 33 kiloampere at 380/415 VAC, 21 kiloampere at 500 VAC (iec).