220V Programmable Time Relay with Dual T1/T2 Display — Precision Timing Without Analogue Drift
Need to automate a pump, fan, or irrigation system without constantly watching the clock? A programmable time relay is the set-and-forget solution you’ve been looking for. Simply configure your T1 and T2 intervals, select your operating mode, and let the device handle the rest. It operates independently, day and night, and retains all settings even after a power cut.
Note: This module is intended for installation by individuals with basic electrical knowledge. Please consult the wiring diagram included in the package before installation.
Why choose this model? (Key Advantages):
- Dual LED T1 + T2 Display — View and adjust both intervals simultaneously without navigating through repetitive menus.
- 6 Operating Modes — Includes delay, timing, and loop ON/OFF or OFF/ON functions to cover any scenario, from automated irrigation to industrial ovens.
- 0–999 Range in Seconds, Minutes, or Hours — Complete flexibility via the P0 parameter; no additional modules required.
- Non-Volatile Memory — T1, T2, P0, and P1 settings are saved automatically; the device resumes exactly where it left off after a power interruption.
- 10A / 1500W Capacity — Directly switch pumps, fans, heating elements, and lighting systems without needing an intermediate contactor.
- Compact Design for Electrical Panels — Measures 79×26×43 mm with a 72×40 mm mounting cutout, making it easy to integrate into any standard electrical enclosure.
Performance and Technical Details
At the heart of this module is a dedicated timing microcontroller, rather than an analogue RC circuit. This ensures your set intervals remain constant regardless of voltage fluctuations or temperature changes. The SET, +, and – buttons allow for full configuration in under a minute, while the loop mode (P1-4 and P1-5) runs ON/OFF cycles indefinitely without manual intervention. The NO/NC relay contact ensures compatibility with both resistive and inductive loads, up to 1500W at 220V AC.
| Parameter | Value / Detail |
|---|---|
| Supply Voltage | AC 220V |
| Maximum Current | 10A |
| Maximum Switched Power | 1500W |
| T1 / T2 Timing Range | 0–999 seconds / 0–999 minutes / 0–999 hours |
| Time Units (P0) | P0=0 seconds | P0=1 minutes | P0=2 hours |
| Operating Modes (P1) | P1-0 to P1-5 (6 modes) |
| Setting Memory | Non-volatile (retained after power failure) |
| Display | Dual LED Display (T1 + T2) |
| Module Dimensions | 79 × 26 × 43 mm |
| Mounting Cutout | 72 × 40 mm |
| Output Type | NO/NC Relay Contact |
Programming and Usage Instructions
- Connect the module according to the wiring diagram provided in the package (L, N for 220V input; load output on NO/COM contacts).
- Power the unit with AC 220V. The display will show the default T1 time value.
- Press the SET button briefly to enter edit mode. The active digit will begin to flash.
- Use the + and – buttons to set the desired value for T1 (ON duration or delay, depending on the chosen mode).
- Press SET again to move to T2 and set the corresponding value.
- Press SET to save, or wait for the automatic save after a few seconds of inactivity.
- Long-press the SET button (3–5 seconds) to access the advanced parameter menu.
- Set P0 (time unit):
- P0=0 — seconds
- P0=1 — minutes
- P0=2 — hours
- Press SET briefly to switch to P1 and select the operating mode:
- P1-0: After T1 delay, the relay activates and stays active.
- P1-1: After T1 delay, the relay remains inactive.
- P1-2: After T1, the relay activates; after T2, it switches off.
- P1-3: After T1, the relay is inactive; after T2, it activates.
- P1-4: Repeated cycle: ON (T1) → OFF (T2) → ON (T1)…
- P1-5: Repeated cycle: OFF (T1) → ON (T2) → OFF (T1)…
- Press SET briefly to save the parameters and exit the menu. The module will automatically start in the newly configured mode.
Practical Example — 30s ON / 60s OFF repeated cycle: Set T1=30, T2=60, P0=0 (seconds), P1=4. The relay will switch automatically: 30 seconds active, 60 seconds inactive, repeating indefinitely.
Package Contents
- 1 × Digital 220V Programmable Time Relay (T1/T2 timing module)
- 1 × Electrical wiring diagram
Frequently Asked Questions
Can it run on voltages other than 220V, such as 12V DC?
No. This model is designed exclusively for AC 220V power. For low-voltage applications (12V, 24V DC), you require a model specifically designed for that voltage.
Are settings lost if the power goes out?
No. The non-volatile memory stores T1, T2, and P0/P1 parameters regardless of power interruptions. Upon power restoration, the relay automatically resumes operation with the last saved settings.
What loads can I connect to the relay output?
It supports resistive and inductive loads up to 10A / 1500W at 220V AC, such as water pumps, fans, heating elements, LED strips, lighting, and small motors. For heavy inductive loads, we recommend using an additional contactor.
Can I set an interval of less than 1 second?
No. The minimum resolution is 1 second. For millisecond timing, you would need a relay with higher resolution.
Can it be mounted directly into an electrical panel?
Yes. The 72×40 mm mounting cutout allows for direct installation into a standard electrical panel or enclosure. Its compact size (79×26×43 mm) leaves plenty of room for other components.
Product Video
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Setup was pretty intuitive. I’m using it for my garden irrigation system and it hasn’t missed a beat. Highly recommend for DIY automation.