1747-L542 A-B 接触器线圈

A-B 1746-BAS
A-B 1756-OF8
A-B 1769-L30ER
A-B 1756-OF8
A-B 1756-OF8
A-B 1756-OF8
A-B 1756-IF8
A-B 1756-ENBT
A-B 1756-OF8
A-B 1756-RM
A-B 1756-L73
A-B 1756-ENBT
A-B 1756-OB32
A-B 1756-OB32

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Image 2

Description

起动时,合上隔离开关QS。引入三相电源,按下起动按钮SB2,接触器KM的线圈通电,接触器的主触头闭合,电动机接通电源直接起动运转。同时与SB2并联的常开辅助触头KM也闭合,使接触器线圈经两条路通电,这样,当SB2复位时,KM的线圈仍可通过KM触头继续通电,从而保持电动机的连续运行。

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