Time-delay closing wiring of time relays

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The following are several common wiring methods for time-delay closing of time relays:

### JS14P Time Relay

- **Explanation of Wiring Pins**: Pin 2 is the working power supply; pins 3 - 4 are for time-delay closing; pins 3 - 5 are for time-delay opening; pins 6 - 7 are for time-delay closing; pins 6 - 8 are for time-delay opening.

- **Wiring Method**: Connect the live wire of the power supply to pin 2 and the neutral wire to pin 7 to provide the working power supply for the time relay. If you want to achieve the time-delay closing function of a certain circuit, you can connect one end of the load to the live wire of the power supply, the other end of the load to pin 3 of the time relay, and pin 4 to the neutral wire of the power supply. In this way, when the timekeeping of the time relay reaches the set time, pins 3 and 4 will close with a time delay, and the load will be powered on to work.

 ### AH3-3 Time Relay - **Explanation of Wiring Pins**: Terminals A1 and A2 are the power supply connection terminals. Terminal A1 is connected to the positive pole of the power supply, and terminal A2 is connected to the negative pole of the power supply. Terminals 11 and 14 are contacts used to control external devices. 

- **Wiring Method**: Connect the positive and negative poles of the power supply to terminals A1 and A2 respectively, and select appropriate contacts from terminals 11 and 14 to connect to the control circuit. When the time relay is powered on and starts timing, after reaching the set time, the states of the corresponding contacts will change, thus realizing the time-delay control of external devices. 

### 8-Pin Time Relay - **Explanation of Wiring Pins**: Pins 1 and 2 are the power supply input terminals. Pins 1 and 3 are normally open contacts that operate instantaneously. When pins 2 - 7 are powered on, pins 1 - 3 will close. Pin 8 - 5 is a normally closed contact that will open with a time delay after pins 2 - 7 are powered on, and pin 8 - 6 is a normally open contact that will close with a time delay after pins 2 - 7 are powered on. 

- **Wiring Method**: If you use the time-delay closing contacts to control an AC contactor, you can connect pin 2 and pin 7 to the live wire and the neutral wire of the 220V power supply respectively, connect pin 5 to the live wire of the power supply, connect pin 8 to coil A1 of the AC contactor, and connect coil A2 of the AC contactor to the neutral wire. When the time relay is powered on and reaches the set time, pins 8 and 6 will close with a time delay, enabling the coil of the AC contactor to be powered on to work. 

### Time Relay of Power-Off Time-Delay Type 

- **Explanation of Wiring Pins**: Taking a certain model as an example, pins 1 and 4 are normally closed contacts. Before the set time-delay time is reached, they remain in the closed state. When the set time-delay time is reached, pins 1 and 4 will open, and at the same time, pins 1 and 3 will be connected. Pin 8 is the common terminal. It forms a normally open contact with pin 6, which closes with a time delay, and forms a normally closed contact with pin 5, which opens with a time delay. 

- **Wiring Method**: Connect the power supply to the power input terminals of the working coil of the time relay, paying attention to the polarity. If you want to achieve the function of time-delay closing after power-off, you can connect one end of the load to the power supply and the other end to pin 8, and connect pin 6 to the circuit that needs to be controlled. When the time relay is powered off, after the set time-delay time has passed, pins 8 and 6 will close, connecting the control circuit.