Hi all, I created this: [image] The air damper is this: A6V10417269.pdf 497.24 KB With no snubber Arduino has malfunctions when damper relay swith on/off. With the snubbers installed, the Arduino malfunctions have been resolved, but I am now measuring a…

Help please, RC snubber values for 240vac

tigger August 8, 2025, 11:12am 5

Have you tried testing the relays individually with simple loads like a filament lamp?

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