Suitable for use as service entrance equipment when installed in accordance with the national electrical Code®6 to 42-circuit devices UL listed for bottom mounted lugs by installing complete unit (box, interior and front) upside down60 to 70 deg C conductor ratingMain lug models field convertible to main breakerSplit neutrals extend the full length of the interior for ease of wiringEntire main lug line converts easily to main breakerFront packed in inner carton for added protectionStraight through main wiringCompact box maintains optimum wire bending spaceCopper busbar for excellent conductivityTop feed42, 16, 24, 12, 20, 40 - 1/2 in spaceGround kit for top entry TGK12 (order separately)