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Old 01-24-2023, 09:34 PM   #5
diver dave
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City: Palm Coast, FL
Vessel Name: Coquina
Vessel Model: Lagoon 380
Join Date: Jan 2017
Posts: 2,494
Starter relay JD6068

Diodes are very common across dc coils to reduce back emf as you say. Thus the red/blk polarized marking. I would verify that with a continuity meter and install it. If a mechanical switch is used, the diode will prolong its contact life.
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