ETL Listed. NEMA 10-50P to 6-15R 6-20R 240V 30 Amp Prong Male to 20 Amp 3 Prong Female Power Cord Adapter. 240V 20 Amp. Item model number: 10-50P/6-15R 6-20R Cable. Color: 10-50P/6-15R 6-20R Cable. Made of High Quality Copper Wire.