Features. The plug is made of impact-resistant polycarbonate and the connector is made of solid copper, nickel and the terminals are silver plated. The terminals provide low resistance for amazing conductivity. Silver-plated ensures a very stable connection. The plug enables a reliable connection resistant to weather conditions and vibrations. It cannot be cross-connected and is usually used to connect auxiliary power from vehicle to trailer. 100% brand new and high quality. Specification Rated current: 50A voltage: 600V max. Operating voltage: 12v or 24v Color: gray/red Operating temperature: -20 to 105 cycle Life: 10,000 times plugging and unplugging Fire resistance: PC UL94V-0 Pressure resistance: 2 tons Package.10*plug20*terminal10*protectorNote.1. Due to the difference of different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as the picture.2. Due to different manual measurements, please allow slight size differences.