This heavy-duty automotive power start relay is engineered to handle high-current electrical demands in vehicle starting systems. Rated for 12V at 200A, this robust relay provides reliable switching capability for demanding automotive applications. The TN686 RL/280-12 model features a 4-pin SPST (Single Pole Single Throw) configuration with clearly marked terminals (30, 86, 85, 87) for straightforward installation. Its durable black housing protects internal components from vibration, moisture, and temperature fluctuations commonly encountered in automotive environments. The relay includes heavy-duty copper terminals with secure bolt connections that ensure consistent power delivery and minimize voltage drop. A convenient mounting bracket with a single hole allows for easy installation in various locations within the engine compartment or electrical system. The compact design makes it an efficient solution for controlling high-current circuits such as starter motors, winches, or other power-hungry accessories. With its rugged construction and high amperage capacity, this relay delivers dependable performance under the most challenging conditions, making it an essential component for automotive electrical systems requiring reliable high-current switching.