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Are Magnet Wires on Dexter Electric Drum Brake Polarized as Positive & Negative

Question:

I have two white wires on my dexter electric brake backing plates magnet wires Does it matter which of these is hooked to ground and hot?

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Helpful Expert Reply:

No, on an electric drum brake assembly the magnet wires are NOT polarized so either wire can be attached to the frame as ground or used for the +12V brake circuit. Do your best to make sure the ground wire is attached to a rust-free, grease-free bare metal surface. An application of dielectric grease like # 11755 over that secure ground connection can help prevent the entry of moisture that can lead to corrosion.

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