I am going to wire a dedicated circuit for my 220v LG clone amp. I want to make a relay /outlet box similar to the one in notnyt's very informative thread. I tried using the search feature to find an answer with no success. I have the omron 30a relay( 4 terminals) as shown in the pictures below. My question is, how would this work since 220v has two hot wires? Any help would be appreciated. Thanks!