This item is a safety quick connect/disconnect connector kits, which allows quick connect and disconnect for winches or other electrical devices. The 4 terminal are made of coated with silver, which features strong electrical conductivity and reduces the resistance to stable and current. This connector is suitable for quick disconnect/ connect is required such as forklift battery charging and plug in style booster/ jumper cables for vehicle charging. Features - Polycarbonate shell which is a versatile and tough plastic makes this connector sturdy and reliable. - Driver recovery products’ quick connector set offers an easy and convenient way to connect and disconnect power to winches, forklifts, chargers, power modules, cars, motorcycles, boats and other electrical devices. - Silver or plated copper contacts inside housings that strongly force the contacts together - Stainless steel springs form a rebuts force between the contacts that holds the connector in the mated position. - Contacts feature a sacrificial tip that allows high current circuit interrupt. Prevents accidental cross mating of circuits. Specifications - Color: Grey - Plug: Polycarbonate - material: Copper, silver plating - Rated Current ( ): 50A - Rated ( ): 600V - Barrel Wire Size: 6/10/12AWG (13.3mm⊃2; - 5.3/3.3mm⊃2;) - Maximum Wire Insulation Diameter:0.44 (inches),11.2(mm) - Resistance:200(micro- ) - Retention Force :50 ( ) - Average resistance: 0.05MΩ - proof: 2 (DC) - Insulation resistance: 500MΩ - A. No load (Contact/Disconnect Cycles): To 10,000 - B. Under load (Hot Plug 250cycless@ ): 50A - . Unmating Force: 53N - Flammability Rating of Housing Material: UL94 V- 0 - Operating temperature range: -20°to 125° Package list: 1 x set of A0190 Pair Of 50A 600V Power Connector Plug With 2 Contacts And Protective Cover Double Pole Connector Quick Connect/ Disconnect Plug for Recovery Winch or Trailer (Grey)