... Poles: 3, 4, 5, 6, 10, 12... TB wiring terminal board Current: 15A, 25A, 35A, 45A, 60A, 100A Poles: 3, 4 ... : polyphenyl or polycarbonate Contact: copper pieces, tin plated brass screws Cover: reinforced plastic, ensures heat-resistance, good toughness and no crack ...