12V 200A Heavy Duty Battery Isolator Relay, 4 Pin Dual Battery Switch, Universal Start Relay for Car and Marine Applications

This heavy-duty 12V 200A battery isolator relay is an essential component for managing dual battery systems in automotive and marine applications. Designed to handle high current loads up to 200 amperes, this universal start relay ensures reliable power distribution and battery isolation when needed. The 4-pin configuration provides straightforward wiring with clearly marked terminals (30, 86, 85, 87) for easy installation in your electrical system. Its compact dimensions of approximately 2x1.2x0.4 inches make it suitable for tight engine compartments while the robust construction with copper terminals and a durable housing ensures long-lasting performance. The relay features a mounting bracket for secure installation and comes with standard bolt terminals for solid connections. Perfect for split charging systems, this relay automatically isolates your auxiliary battery when the engine is off, preventing drain on your starting battery. Whether you're upgrading your vehicle's electrical system, installing auxiliary lighting, or setting up a dual battery system for camping or work applications, this reliable relay switch provides the heavy-duty switching capability you need. CCC certified for quality assurance.

• HIGH CURRENT CAPACITY: 12V 200A heavy-duty relay designed for robust automotive and marine electrical systems requiring high amperage switching capability
• DUAL BATTERY ISOLATOR: 4-pin configuration enables reliable dual battery management, ensuring proper starting power and preventing battery drain in multi-battery setups
• UNIVERSAL COMPATIBILITY: Fits various vehicles and marine applications with standard relay socket, featuring clearly marked terminals 30, 86, 85, and 87 for straightforward wiring
• COMPACT CONSTRUCTION: Measures approximately 2 inches x 1.2 inches x 0.4 inches with durable housing and copper terminals for reliable electrical connections and heat dissipation
• QUALITY CERTIFIED: CCC certified relay switch with mounting bracket for secure installation, weighing 3.5 ounces for easy handling and placement in tight engine compartments