An electrical distribution apparatus includes a power connector for coupling to a cable. The power connector includes a first end and a second end each defining an opening arranged to receive the cable. A barrier is removably coupled to a portion of the electrical distribution apparatus and selectively adjustable between a first position and a second position, the barrier arranged to prevent insertion of the cable into the first end opening and to permit insertion of the cable into the second end opening when the barrier is in the first position, the barrier arranged to prevent insertion of the cable into the second end opening and to permit insertion of the cable into the first end opening when the barrier is in the second position.