天津河东区西门子断路器3RV10110EA25
西门子3RV断路器系列产品,欢迎咨询:联系电话:15659111763 QQ:3001036887
IEC947—2《低压开关设备和控制设备低压断路器》标准规定:A类断路器(指仅有过载长延时、短路瞬动的断路器)的Ics可以是25%、50%、75%和100%。B类断路器(有过载长延时、短路短延时、短路瞬动的三段保护的断路器)的Ics可以是Ics的50%、75%和100%。因此可以看出,额定运行短路分断能力是一种比额定极限短路分断电流小的分断电流值。
(1) 每半年或季度检查PLC柜中接线端子的连接情况,若发现松动的地方及时重新坚固连接;
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