1、Car air conditioner delay relay, keep the AC running for 3‑5 minutes after turn off the refrigeration function and after the car is off. 2、Effectively protect the car air conditioning system and extend the life of the compression pump. 3、The function of the relay is to control the start and stop of the air conditioner, which is sensitive and easy to use. 4、When the temperature in the car reaches the target temperature, the sensor will let the relay stop the cooling work of the air conditioner. 5、Thick copper wire, waterproof wear‑resistant, lower temperature rise, strong suction, has more stable performance. 6、All copper electromagnetic coil, alloy pin for good electrical conductivity, the shell has good thickness and smoothness, durable to use. Condition: 100% Brand New Item Type: Air Conditioning Relay Material: Copper + PlasticColor: Orange Voltage: 12V Current: 40A Fitment: Universal Relay Wiring Instructions: The two yellow wires are for input control, connect to 12V, and the red and blue wires are for output, connect to the device you need to control, and the input and output are both positive and negative.3 Basic Forms of Relay Contacts: 1. Normally open contact coil, the two contacts are disconnected when not energized, and the two contacts are closed after energization. 2. Normally closed contact coil, the two contacts are closed when not energized, and the two contacts are disconnected after energization. 3. Transfer contact, this is a contact group type. This kind of contact group has three contacts in total, that is, the middle is a moving contact, and the upper and lower are static contacts. When the coil is not energized, the movable contact and one of the static contacts are disconnected and the other is closed. After the coil is energized, the movable contact moves to make the original open into closed, and the original closed into open state, and the conversion is achieved. purpose. Such contact groups are called changeover contacts. During the closing process, if a permanent fault is encountered, the protective outlet relay contact BCJ is closed, the circuit breaker trips, and the anti-trip relay TBJ is activated. If the control switch handle (closing button) is not reset or its contacts are stuck, and the closing contacts of the automatic closing device are stuck (not separated), the contact TBJ1 of the anti-trip relay has been closed, causing TBJ The voltage coil is charged and acts as a self-holding. In addition, the contact TBJ2 has been disconnected, which can prevent the closing coil HQ from conducting again, which prevents the circuit breaker from "jumping". The function of the contact TBJ3 (combined with the contact of the BCJ) is to prevent the contact of the protection outlet relay BCJ from being burnt out. Because during automatic tripping, the contact of BCJ may be disconnected before the auxiliary contact QF2 (the normally open auxiliary contact of the circuit breaker connected in front of the tripping coil TQ), which may be burnt by the arc. Because TBJ3 is connected in parallel with it, even if the contact of BCJ is broken first, it will not be burnt out, and there is a tripping outlet.Function: Air conditioning relay is a multifunctional three-phase three-wire power system or monitoring and protection instrument for three-phase electrical equipment. Using powerful microprocessor chip and non-volatile storage technology, it can replace the function of three-phase voltmeter. 5 x Air Conditioning Relay