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| 用途 Application |
| Ⅱ DH2(7)系列低压隔离换向开关适用于交流50Hz、额定电压至660V 额定电流至200A 的电路中，在无载条件下分端和闭合电路，也可在紧急情况下带负荷分端电路。开关除具有隔离开关的功能外，还可在无载条件下改变出线端相序，作可逆转换之用，特别适用于真空、空气式电磁起动器的换向、隔离开关。 |
| Ⅱ DH2(7)Series low-voltage isolation commutation switch is applicable to circuit with AC50Hz,rated voltage to 600Vand rated current to 200A ,break or close circuit under no-load condition,also can break circuit with load in emergency situation.The switch possesses the functions of isolation switch, it also can change phase sequence of coil out terminal under no-load condition,and applied as reversible conversion,especially suitable for commutation switch and isolation switch of vacuum and air type electromagnetic starter. | |
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