Main lug load centers can be used as a home's main panel or sub panel depending upon your preferences. All GE load centers are rated up to 60 degree/75 degree centrigrade and is suitable for use with service entrance equipment when installed in accordance with electrical code. The TL42420C features space for 42, 1" breakers, 3 phases, 200 A bus ampere rating, and a combination/flush enclosure. Aluminum bus with copper mounting stabs providing copper-to-copper stab connections60 deg or 75 deg C conductor ratingSuitable for use as service entrance equipment when installed in accordance with the national electrical code22 kAIC rms symmetrical, except where noted6 - 42 circuit devices UL listed for bottom mounted lugs by installing complete unit (box, interior and front) upside downOne piece interior removes and reinstalls easilyFull length neutrals are easier to wire, 2 reducing installation time and cosMinimum 100% neutral terminationsCombination slotted/Robertson square drive speeds screw wiringTie bar may be removed to split neutral/ground(42) 1 in space, (42), (1000) 1/2 in space2/0 AWG - 250 kcmil aluminumCombination mounting