The joints of control bypass contactor passive relay output points;

控制旁路接触器的接点是无源继电器输出点；

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Question: Is it necessary to add external bypass contactor for 3RW40 softstarter? What's the result when adding external bypass contactor for 3RW40 softstarter?

问题：3RW40软起动器是否需要设计外置旁路接触器？如加外置旁路接触器会有何影响？

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Question: Is it necessary to add external bypass contactor for 3RW40 softstarter? What's the result when adding external bypass contactor for 3RW40 softstarter?

问题：3RW40软起动器是否需要设计外置旁路接触器？如加外置旁路接触器会有何影响？

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