... current 160A~630A mainly used as power switch, isolating switch and emergency switch with function of protection in the circuit with high ... 947-3(1999).Switch rating heat current: 160A, 250A, 400A and 630ANumber of poles: 3P,Assorted fuse links: NT00 for 160A ... , 160, 200, 224, 250, 300, 315, 355, 400, 425, 500 and 630Rated insulation voltage: 690VRated voltage: 400VRated limit short-circuit current ...