This value kit includes 10 20 Amp Single-Pole, 1 30 Amp Double-Pole, 1 50 Amp Double-Pole THQL 1 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. Outdoor NEMA 3R enclosure. This load center is UL listed and ANSI Certified.