50 AMP Generator Cord. STW, 100% Copper and 6AWG/3C + 8AWG/1C. The most common application of this VEVOR 50 Amp extension cord is to temporarily supply power from the generator to the manual switch box. This heavy-duty 50 Amp 125/250-Volt power cord is compatible with generators utilizing a N14-50P outlet. And enables an easier reach from your generator to your nearest power receptacle or electrical connection.