This value kit includes 6 20 Amp Single-Pole, 1 30 Amp Double-Pole, 1 50 Amp Double-Pole THQP 1/2 in. Circuit Breakers. The load center includes a sturdy tin-plated copper buss bar and a galvanized box for increased durability and reliability. The one-piece interior removes and re-installs easily. Indoor NEMA 1 enclosure with combination surface/flush front. This load center is UL listed and ANSI Certified.