This article mostly introduces the adoption announcements of the life testing equipment that used in! DC contactor production surveillance, and discusses correlated requirement.
本文主要介绍了监测直流接触器的机械寿命试验直流电源设备在选用时注意的事项，论述了相关要求。
2
Reduction in parts Inventories and Costs: the simplified design of the vacuum circuit breaker or contactor has up to 50% less parts than the equivalent air magnetic equipment.
减少在零件存货和费用：真空开关或接触器的被简化的设计有50%较少部份比等效空气磁性设备。
3
The invention relates to electromechanical equipment accessories, in particular to an undervoltage open-phase protection contactor.