This heavy duty automotive relay is engineered to handle high current loads in demanding vehicle applications. The TN686 model is rated for 12V 200A, making it ideal for power start scenarios and other critical electrical circuits that require robust switching capability. Built with durable construction, this relay features copper terminals that provide secure electrical connections and excellent conductivity. The compact design includes a convenient mounting bracket for easy installation in various automotive and heavy duty equipment applications. The relay's internal components are designed to withstand the rigors of automotive environments, ensuring consistent performance under tough conditions. With clearly marked terminal positions (30, 86, 85, 87) printed on the housing along with a wiring diagram, installation is straightforward for both professional mechanics and DIY enthusiasts. This relay is compatible with a wide range of vehicles and equipment that require high current switching, including starter motors, winches, and other power-hungry accessories. The robust housing protects the internal switching mechanism from dust, moisture, and vibration, extending the service life of the component.