Wide Compatibility - Fits 6-10 Gauge Wire; Voltage 12-36V; Capacity 50Apm Super Easy to Use - Insert the wire into the terminal pins and then solder or clamp it in place. Then slide them onto the back of the connector and lock them to complete this process Strong Electrical Conductivity - One connector has 2 pins. They are made of silver-plated red copper which provides high conductivity and generates less heat. Allows for quick connection and disconnection of winches or other electrical devices Cap: Polycarbonate Contact Material: Copper, Silver Rated Current (Amps): 50 A Rated Voltage (Voltage): 600 V Contact Cylinder Wire Size: 6 /8/10/12 AWG (13.3mm ± 2; - 5.3 / 3.3mm ± 2;) Maximum Diameter d Wire Insulation: 0.44 (inch), 11.2 (mm) Average Contact Resistance: 200 (micro-ohms) Contact Holding Force: 50 (lbf) Average Contact resistance: 0.05 MΩ Voltage test: 2200 V (DC) Insulation resistance: 500 MΩ A. No load (contact/disconnect cycles): at 10,000 B. Under load (hot plug 250 cycles