... standard of GB3906-91 (3-35KV AC metal-enclose switch cabinet), the standard of DL4047-91 (indoor AC switch cabinet ordering technique) and the ... making currentKA50, 63, 80,100,130,160Rated short-time withstand current (4S)KA20, 25, 31.5,40,50,63Rated withstand ... current (peak)KA50, 63, 80,100,130,160Protection degreeIP4XExternal dimension (W* ...