12/24V 100/200A Universal Battery Switch Relay Start 4 Pin Dual Battery Isolator Relay Current Start Relay Normal Open Car Relay (DC24V 100A)

This heavy-duty automotive relay is a versatile solution for battery management in cars, trucks, boats, and other vehicles. Available in both 12V/100A and 24V/200A configurations, this four-pin normally open relay is built to handle high-power load applications with ease. The durable nylon shell combined with a brass inner core ensures long-lasting performance and reliable electrical conductivity under demanding conditions. The sealed construction protects internal components from moisture and debris, making it well-suited for a wide range of automotive and marine environments. Designed as a dual battery isolator relay, it enables safe engine starting while automatically preventing battery drain between uses. The straightforward four-pin layout — terminals 30, 86, 85, and 87 — makes wiring simple and compatible with standard automotive relay setups. A convenient mounting bracket is integrated into the housing for easy installation. Whether you are upgrading your vehicle's electrical system or setting up a dual battery configuration, this relay delivers dependable switching performance you can count on.

• DUAL VOLTAGE COMPATIBILITY: Supports both 12V and 24V DC systems with selectable 100A or 200A rated current options for versatile automotive use.
• HIGH POWER LOAD HANDLING: Features a normally open contact design with a sealed nylon shell and brass inner core built to manage heavy-duty electrical loads.
• 4-PIN DUAL BATTERY ISOLATOR: Enables reliable engine starting and automatic battery isolation to help prevent unwanted battery drain in vehicles.
• ROBUST CONSTRUCTION: Sealed nylon housing combined with a brass inner core provides durable protection against moisture and wear in demanding environments.
• WIDE APPLICATION: Suitable for general purpose use in cars, trucks, boats, and other 12V or 24V DC battery management systems requiring high current switching.