Quote Originally Posted by cspearsall1 View Post
@cncman - would this work for an EMI filter or do I need something else?
https://a.co/d/3DNp62B

@craig - I have no idea what a catch diode is, but Google did. So it acts as a one-way gate to not allow voltage back into the controller board from the relay? If you don't mind, can you explain where in the circuit this would be wired and what size I would need for a 15a 100v motor on a relay?
Yes, that filter will work fine