Heavy duty 4-prongs SPST relays：JD1912 Automotive DC 4 Pin 12V 40A SPST electrical relay
Contact Rating: NO: DC 12V 40A , NC : DC 12V 30A
High 40A coil capacity：30-High power feed,85-Relay coil ground,86-relay coil feed(trigger wire),87-high power output(normally open contact）
High quality：Use optional Relay Harness, or female Crimp Connectors，mechanical life of 10,000+ cycles
Application: JD1912 Automotive relays are widely used to install electric cooling fans, horns, electric fuel pumps, electric water pumps, trunk solenoids, car setups, security systems, car audio systems and a variety of other applications with easy installation.
