I find all kinds of things on the web when trying to figure out the minimum clearance to 220 VAC on a PCB. This relay from Sparkfun is made for 220VAC: [image] Relay SPDT Sealed - 20A - COM-10924 - SparkFun Electronics These are massive single pole - double throw (SPDT) sealed relays. Th…

Practical clearance for 220 VAC on PCB

be80be December 12, 2012, 6:10pm 4

You have to clear all the copper over your mains to if using a double side board

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