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Refugee · 10th Oct 2018, 1:24 pm

I would be more tempted to put a voltage surge suppressor in parallel with the motor coil.
That would be out of circuit when the relay contact is open so that the capacitor life problem is eliminated along with the spark erosion problem.

10th Oct 2018, 1:24 pm	#9
Refugee Dekatron Join Date: Apr 2012 Location: Worksop, Nottinghamshire, UK. Posts: 5,552	Re: Miniature relay Suppressor I would be more tempted to put a voltage surge suppressor in parallel with the motor coil. That would be out of circuit when the relay contact is open so that the capacitor life problem is eliminated along with the spark erosion problem.