Community Alumni
Jun 13, 2017If you don't want to rewire the outlet, an adapter would work fine. First confirm that it is indeed providing ground, neutral, L1 and L2 conductors. With a meter test 120 Volts from neutral and ground to L1 and L2. Then confirm that there is 220 present between L1 and L2. If not, then the 50 Amp outlet is single phase. Keep in mind that the 220v 50 Amp to 120 Volt 30 Amp adapter only taps into the L1 phase and the overcurrent protection is still 50 Amps. If this is going to be a long term setup, I would rewire it in this fashion: Replace the 50 Amp outlet with a 30 Amp RV type. Spare the L2 conductor at both ends. Remove the 50 Amp dual breaker and replace with a 30 Amp circuit breaker in either of the now vacant positions. The remaining position now can be used for another dedicated circuit. An adapter is quick and dirty, but long term an outlet wired to code is the best.