8 Pin Timer Relay Wiring Diagram
Understand 8-pin timer relay wiring with easy diagrams. Learn pinout, connection steps, and functions. Perfect for electricians and electronics hobbyists.
8 pin relay light automation
The 8-pin timer relay is a commonly applied mechanism that is used to apply automation within circuits by intervals of time. It operates by holding up switching of its contacts according to predetermined time. Lighting, motors, or any device that has a programmable delay can be controlled by the relay with wires connected to the input voltage on the coil side between the coil terminals and to the output (NO or NC) terminals to the load positions. This confers on it a vital role in automation, control panels, and DIY electronics.
Relay Function Logic:
| Pin No | Function | Connection |
|---|---|---|
| 2 & 7 | Coil (AC/DC Supply) | Connect to Power Input |
| 1 & 8 | Common (COM) | Relay Switching Terminals |
| 3 & 6 | Normally Open (NO) | Output when timer completes |
| 4 & 5 | Normally Closed (NC) | Output until timer ends |
| Knob/DIP | Time Adjustment | Set desired delay (e.g., 5s) |
8 pin timer relay connection
The 8-pin timer relay is a general-purpose time delay relay used on automation, control panels, and industrial timing controls. Knowledge of its pinout and wiring assists in adjusting on-delay, off-delay or cyclic applications. It is standard that an 8-pin relay would consist of input voltage and normally open (NO) and normally closed (NC) contacts as well as control coils.
The way you need to wire it is something like this: coil (pins 2 and 7), common (pins 8 and 1), and NO/NC contacts (keep it 3, 4, 5, and 6 depending on the model you have). The timer switches the output on, after a given delay, after being powered. This enables it to be applicable in motor control, lighting, and sequential activities.
timer relay wiring for beginners
| Timer Model | Voltage | Delay Type | Timing Range |
|---|---|---|---|
| H3Y-2 | 12V DC | On-Delay | 0-10s |
| AH3-3 | 220V AC | Off-Delay | 0-60s |
| S1DX-M1C | 24V DC | Repeat Cycle | 1s - 30min |
