S250S-K型微型断路器 型号极数额定电流A S251S-K111S251S-K212S251S-K313S251S-K414S251S-K616S251S-K10110S251S-K16116S251S-K20120S251S-K25125S251S-K32132S251S-K40140S252S-K121S252S-K222S252S-K323S252S-K424S252S-K626S252S-K10210S252S-K16216S252S-K20220S252S-K25225S252S-K32232S252S-K40240S253S-K131S253S-K232S253S-K333S253S-K434S253S-K636S253S-K10310S253S-K16316S253S-K20320S253S-K25325S253S-K32332S253S-K40340S253SNA-K13+NA1S253SNA-K23+NA2S253SNA-K33+NA3S253SNA-K43+NA4S253SNA-K63+NA6S253SNA-K103+NA10S253SNA-K163+NA16S253SNA-K203+NA20S253SNA-K253+NA25S253SNA-K323+NA32S253SNA-K403+NA40