Single or double pole switching for inductive loads

MaxHeadRoom said:

If don't already have a copy, you might want to pick up a copy of NFPA79, Electrical Circuits for Industrial Machinery.
Although a N.A. publication, it also pertains to other parts of the world to a great extent.
Another is Grounding and Bonding by Eustace Soares, used by NEC and the Intl. Assoc of Electrical Inspectors.
Double fusing in both live conductors is allowed for control circuitry under NEC.
Max.

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