5 Pack 4-PIN Relay 40/30AMP 12V DC Automotive Relays Waterproof Relay with Harness Heavy Duty 12 AWG Tinned Copper Wires (5 Pin)

This 5 Pack of 4-PIN 40/30 AMP 12V DC automotive relays delivers reliable switching performance for a wide range of electrical applications. Each relay features a SPDT contact configuration, allowing you to control both normally open and normally closed circuits with a single unit. The heavy duty design includes a waterproof relay housing and a pre-wired harness, making installation straightforward and protecting against moisture, dust, and vibration. Built with 12 AWG tinned copper wires, this relay set offers excellent corrosion resistance and efficient current flow. Tinned copper withstands harsh environments better than standard copper, reducing the risk of oxidation over time. The quick connect terminals fit standard 4 pin relay sockets, and the harness simplifies wiring in automotive, marine, RV, off road, and industrial projects. Each relay operates on a 12V DC coil with a coil resistance of 80 ohms and a wattage of just 1.8 watts, ensuring low power consumption while switching loads up to 40 amps continuous or 30 amps continuous on the other contact. The minimum switching voltage of 6V DC allows reliable activation even in systems with voltage drops. Whether you are installing auxiliary lighting, fuel pumps, cooling fans, horns, or other accessories, this relay pack provides consistent performance and long lasting durability. The socket mount design keeps installation clean and secure, while the waterproof construction adds protection in wet or dusty conditions. Each relay is rated for heavy duty use, with tinned copper wires that resist corrosion and maintain conductivity over time. The included harness eliminates the need for additional connectors, saving time during installation. This set is ideal for automotive enthusiasts, technicians, and DIYers who need a dependable relay solution for multiple projects. Upgrade your electrical system with these robust 40 30 amp relays and enjoy reliable switching in demanding environments.

• 5 Pack 4-PIN Relay 40/30AMP 12V DC Automotive Relays Waterproof Relay with Harness Heavy Duty 12 AWG Tinned Copper Wires Package includes 5 relays, each with a pre-assembled harness for quick installation
• Waterproof design protects against moisture and dust, ensuring reliable performance in harsh automotive environments
• Heavy duty 12 AWG tinned copper wires resist corrosion and improve current flow for consistent electrical connections
• 40/30 amp contact rating supports high current applications like horns, headlights, and fuel pumps
• SPDT contact type offers versatile switching with normally open and normally closed terminals