Current 4 Pin Car Relay 12V 200A/100A is a continuous duty automotive relay designed for reliable switching of current loads in cars and trucks. With a 12V coil and normally open contacts, this relay provides a simple and durable solution for energizing heavy accessories while isolating the control circuit from the current circuit. Each pack contains 3 pieces for convenient stocking and multiple circuits. Key benefits current switching: capable of handling demanding loads with up to 200A (and 100A) ratings, helping you power heavy automotive accessories without stressing wiring or switches. Reliable, continuous duty operation: built for frequent on/off cycling and longterm use in vehicle electrical systems. Easy integration: 4pin configuration and normally open contacts simplify wiring and circuit design in standard 12V automotive setups. Ready for multiple circuits: three relays in one package support multiple current installations or spare units for future projects. Robust automotive suitability: designed for use in car and truck electrical systems where a dependable relay is required to control substantial loads. Key attributes Functionality: current automotive relay with four pins and normally open contact configuration. Coil voltage: 12V, suitable for standard 12V vehicle electrical systems. Current rating: 200A / 100A class performance ( current switching for heavy loads). Type: continuous duty relay for ongoing operation in automotive environments. Package: includes 3 pieces per set (Size: 3PCS), providing extra units for additional circuits or replacements. Application focus: intended for use in cars and trucks to manage current accessories and circuits that require reliable power switching. What makes it useful Provides a safe and efficient control method for current devices such as electric cooling fans, winches, heavy lighting, or other draw automotive accessories. Helps protect control circuits by isolating the load current from the switch or control electronics. Supports modular wiring approaches with multiple relays in a single , enabling streamlined installation and future expansion. Applications and use cases Electric radiator or cooling fan control: power a current fan from the vehicle's control circuit, with the relay handling the heavy current draw. Aftermarket accessories: drive heavyload components such as auxiliary lights, winches, or draw pumps, while keeping the control side separate and protected. Power distribution for multiple circuits: use the three relays to manage separate current accessories across a single vehicle installation, simplifying wiring and maintenance. Installation and usage notes Ensure proper wire sizing and fusing for the current load connected through the relay contacts. Connect the 12V control signal to the coil terminals and wire the load through the normally open contact pair. Verify secure connections and provide shielding or routing to protect against vibration and moisture common in automotive environments. This Current 4 Pin Car Relay 12V 200A/100A provides a clear, dependable solution for controlling heavy electrical loads in automotive applications. With a 12V coil, normally open configuration, continuous duty capability, and a pack of three relays, it supports robust performance and practical flexibility for car and truck electrical projects.