EATON 1264-BOX 30-Amp 2-Pole 3-Wire 125-Volt Heavy Duty Grade Travel Trailer Receptacle Adaptor Plug, Black N/A Made in USA and Imported KK-61 Converts a regular TT-30 plug to a NEMA 5-15R or 5-20R receptacle, which would be for more heavy duty, high amperage appliances or tools Uses 30-amps and 125-volts, and has 2-pole, 3-wire configuration The terminals on the plug have pressure plates to protect the wires on the inside Constructed with a heavy duty grade material, so you will always be able to trust its durability and resourcefulness Meets all UL 498 Requirements