... of Siemens. 12kv switchgear complies with the standard of GB3906-91 (3-35KV AC metal-enclose switch cabinet), the standard of DL4047-91 (indoor ... ,1250,1600,2000,2500,3150,4000,5000specified short circuit drop-out currentKA20, 25, 31.5,40,50,63Rated short circuit making ...