You said;
>>It is indeed 50 amps total<<
>>it is divided between four 20's and one 30<<

If you have a 50amp subpanel that is running off a 50amp breaker in the main panel, you should not have breakers that add up to more than 165% of the 50 amps. That's 82.
Four 20's and one 30 adds up to 110amps. No inspector should have ever signed off on that and your insurance co. will tell you sorry charlie, if you should have a fire.

>>I'm using two 30 amp breakers for the 220 receptacle<<
What does that mean?? Depending on the type of breaker, you will either have a larger breaker that stradles both 110v bars with single lever or two breakers rivited together with a bar between both levers so that they flip together.


'67 GMC 3/4 292 4spd