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FAQ
About Low-voltage Power Distribution Products
Is there polarity in a control coil of SD-T* and SD-N*type?
    Answer
SD-T12 to T32 and SD-N600, N800 type operation coil terminals have polarity.
Connect terminal mumber A1 (+) to the positive and A2 (-) to the negative sides.
  - Product Name
 - Motor Starters
 
- Series
 - MS-T/N