Vertical Connect. (top/bottom), for circuit breakers fixed mounted, Frame Size x, for 3WA2 breaking capacity class N, In = 1600-2000A, for 3WA2 breaking capacity class S / H / E, In = 800-2000A, for 3WA3 breaking capacity class N, In = 1600-2000A, for 3WA3 breaking capacity class S / E, In = 800-2000A, 1 piece