60/75 deg C conductor rating suitable for use as service entrance equipment when installed in accordance with the national electric code. 22 kAIC rms symmetrical, except where noted. 6 to 42-circuit devices UL listed for bottom mounted lugs by installing complete unit (box, interior and front) upside down. No lock provision available. Use Compatible loadcenter with the suffix C24 with a TDL106 for locking provision.