NemaTech Premium Accessories are built-to-last using industrial-grade components and are universally compatible with all NEMA Standards. This power adapter connects between a NEMA L14-30 plug to a L5-30 receptacle commonly found on generators. One piece molded design, built-in locking mechanisms for secure connections and electroplated terminals for maximum oxidation protection. Heavy-Duty construction rated for 125/250V 3,750W and up to 30A loads.