08/30190191 DC : DRAFT SEP 2008被替代
BS EN 60947-4-3 AMD2 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4-3: CONTACTORS AND MOTOR-STARTERS - AC SEMICONDUCTOR MOTOR CONTROLLERS AND CONTACTORS FOR NON-MOTOR LOADS
出版：British Standards Institution
專家解讀視頻
