SSR keeps melting.

[gah]

I second the last posters comments about reliability. You are absorbing 12V and up to the power supplies max amperage into the device. I have a Fotek DC-DC with a 30A rating that has been running for 2 years since I burned up the originally supplied relay. Suggest Amazon rather than E-Bay - more accountability from the supplier if you do see a failure.

[voltatek]

Use a current measurement device (ampmeter) to see how much current is travelling through the Solid State Relay. That will help you determine the relay size needed.

And, if you don't want to burn your house down, I strongly suggest to use a circuit breaker to protect your wiring and relay. See your local electrical code.

[kd7eir]

An excellent post with critical safety recommendations.

Use a current measurement device (ampmeter) to see how much current is travelling through the Solid State Relay. That will help you determine the relay size needed.

And, if you don't want to burn your house down, I strongly suggest to use a circuit breaker to protect your wiring and relay. See your local electrical code.