4 Pack 12V Relay, 40A/30A 4 Pin Spst Automotive Relay with 12 AWG & 16 AWG Harness Socket, Heavy Duty Construction for Cars, Trucks, Boats, Motorcycles, RVs

4 Pack 4 Pin 12V Relay Kit Product Specifications: Color: Black Material: Flame retardant nylon Voltage: 12V Current: 40A Temperature Range: -55°C +70°C Coil power: 1.8W Our relays are perfectly suited for almost all 12V automotive retrofit projects, including car lighting system upgrades, automotive starting system upgrades, and more

• Professional 12V Automotive Power Relay: 4 Pin automotive power relay rated for 12V and 40A, designed to control high current electrical accessories through low current trigger circuits. Ideal for automotive lighting, cooling fans, fuel pumps, horns and other vehicle power switching applications
• Reliable High Current Switching: Built with silver alloy contacts for excellent electrical conductivity, low contact resistance, and reliable switching performance. Designed to deliver stable current transfer under demanding automotive electrical loads while extending relay service life
• Heavy Duty Construction: Constructed with a flame-retardant nylon housing and durable metal mounting bracket for secure installation. The sealed housing helps protect internal components from dust, moisture, vibration, and harsh operating environments, making it suitable for long-term automotive use
• Premium Copper Enameled Wire: The relay socket is equipped with a full copper enameled wire coil, providing stable performance and reliable, precise engagement. Specification: 12AWG/16AWG, balancing performance with safety. Black (Ground or Power Negative) →Ground (85); Blue (Connect to Power Negative) → DC Voltage (30); White (Connect to Power Positive) →Trigger (86); Yellow (Connect to Normally Open Load Negative) → Output Normally Open (87), Red (Load Negative)→Normally Closed (87)
• Wide Applications: Suitable for controlling accessory power circuits in cars, trucks, SUVs, motorcycles, RVs, boats, trailers, tractors, UTVs, and other 12V DC electrical systems. Commonly used for auxiliary lights, driving lights, LED light bars, electric fans, air horns, fuel pumps, and other high-current accessories