12V 30/40A Car Relay Harness Socket 5-PIN SPDT Relays - 5 pack

* Max. 40A Contact Switching Capability, Normally Open @40A/14V DC and Normally Close @30A/14V DC

* Solid Build - the relays are IP67 tightly sealed and injection molded, while the socket wires are 221℉(105℃) heat-resistant, Besides, made of AgSno2 contact material, it has better resistance to arc erosion

* Professional Construction - the 5-prong relays are SPDT designed (single pole double throw), it's able to open or close a circuit, greatly used for car lights, fog lamps, wiper, starter, fans, speakers, traction control systems, etc

* Neat Mounting Feature - unique male-female slot on each socket edge, allows you to connect all the relays together on a panel and make the whole installation neat as possible

* Simple Easy Wiring - the relay sockets come with color-labeled wires for loads/accessories convenient wiring. White (common), Black (normally closed), and Yellow (normally open)

As an electrical control device, the relay is in fact an "automatic switch" that controls the operation of a large current through a small current, so that it has functions of automatic regulation, safety protection as well as circuit conversion. Many automobile and motor devices need a relay to control the circuit, such as led work light, fog lamps, starter, wiper, fans, speakers, central locking, alarm, electric windows, etc. MICTUNING 5-prong relay with harness socket set is A Must Have for your love car!

Here are switch contacts:

PIN 85 - Black

PIN 86 - White

The Blue Wire (Positive) is the power to your accessory, while 87 or 87a is depending on whether the relay has power.