Time relay wiring method and wiring diagram - Solutions - Huaqiang Electronic Network

Probe domestic switch needle KG-300K, needle head diameter is 3.0mm, normally open switch needle

Photocoupler

Wiring plug: 8-pin round plug pin definition:

Wiring method 1 (domestic standard) | Wiring method 2 (OMRON)

Pin number definition:

• 1 - Relay B common | 1 - External switch common
• 2 - Power supply line N (AC85-265V)
• 3 - Relay B normally open contact | 3 - Time reset terminal (RESET) / switch on effective
• 4 - Relay B normally closed contact | 4 - Timing enable terminal (GATE) / open effective
• 5 - Relay A normally closed contact | 5 - Relay A normally closed contact
• 6 - Relay A normally open contact | 6 - Relay A normally open contact
• 7 - Power line L (AC85-265V)
• 8 - Relay A common terminal | 8 - Relay A common terminal

How to wire this time relay?

After power is connected, the relay energizes. After the set time, another indicator light turns on. However, when 5 and 8 are connected to the device, it doesn’t power up. You can connect the device to 9-5 or 12-8. For example, if you want to delay lighting a bulb, connect the neutral wire directly to the bulb, the live wire to terminal 9 or 12, and connect 5 or 8 to the bulb.

13 and 14 pins are connected to DC power supply, with 13 as negative and 14 as positive.

1-9 and 4-12 are normally closed contacts. After power is turned on, once the set time is reached, 1-9 turns off, 5-9 turns on, 4-12 turns off, and 8-12 turns on.

When power is turned off, 1-9 immediately turns on, 5-9 turns off; 4-12 turns on, and 8-12 turns off.

13-14 is the coil, connected to the power supply. 1-9 and 4-12 are normally closed contacts. After power is applied, the relay starts timing, and after the set time, it activates. 1-9 opens, 5-9 closes. The opposite also applies.

After power is turned off, the relay resets, time returns to zero, 1-9 reconnects, and 5-9 disconnects.

This type of relay is made in Hong Kong. 4-12 and 1-9 are normally closed contacts, while 8-12 and 5-9 are normally open. The coil is powered via 13-14. Ensure that the contact rated current is 5A, and the load current must not exceed 5A, otherwise the contacts may burn out.

DH48S-S time relay wiring method

Product model: DH48S-1Z

Time relay wiring method:

1. Control wiring: Consider it as a DC relay. 3 and 7 are used for 12V control voltage; 2 and 7 are used for 24V control voltage. In use, 7 is treated as the negative pole of DC, connected to the neutral line, while 2 is connected to the live wire of 220V.
2. Work control: Even if the control voltage is connected, whether it functions depends on the timer settings on the panel.
3. Function understanding: It acts like a switch, single-pole double-throw. It has a movable arm similar to a knife switch blade. Pin 8 is the active point, 5 is the normally closed point. When the relay is inactive, they are connected. When active, 8 connects to 6.
4. Load wiring: Connect the neutral or negative terminal of the power supply to the appliance’s corresponding terminal. The live wire or positive pole connects to pin 8, and the appliance’s live wire or positive pole connects to pin 6, with pin 5 left unused.
5. Working principle: During the non-timing period, 8 and 5 are connected, equivalent to a normal light switch being off. When the timer is active, the relay operates, connecting 8 and 6, which is equivalent to the switch being on.

Pins 1 and 2 are the power supply. The first group: 3 and 4 are normally open, 3 and 5 are normally closed. The second group: 6 and 7 are normally open, 6 and 8 are normally closed.