Astronomical Digital Time Switch
This digital time switch is designed for precise time-based control of electrical circuits. It features astronomical timing capabilities, automatically adjusting switching schedules based on sunrise and sunset times.





Technical Specifications
Overview
Intelligent Astronomical Control
The AHD16T astronomical time switch provides automated ON/OFF control based on precise geographic coordinates, including longitude, latitude, and local time zones. By eliminating the need for manual adjustments to track changing sunrise and sunset times, it ensures optimal energy efficiency for lighting and electrical systems. This digital device is designed for reliable performance in industrial automation, building management, and residential applications.
Electrical Specifications
- Input Voltage
- AC/DC 12VAC/DC 24VAC 110VAC 220V
- Frequency
- 50Hz / 60Hz
- Switching Capacity
- 16A / 20A
Load Capacity
Maximum Recommended Load (10,000 operations)
| Load Type | Capacity |
|---|---|
| Filament / Halogen lamp (230V) | 2600 W |
| Energy saving lamps | 170 W |
| LED lamp < 2 W | 30 W |
| LED lamp 2–8 W | 100 W |
| LED lamp > 8 W | 120 W |
| Fluorescent (electronic ballast) | 650 W |
| Fluorescent (conv. not corrected) | 1000 VA |
| Fluorescent (conv. series-corrected) | 1000 VA |
| Fluorescent (conv. parallel-corrected) | 730 VA (80μF) |
Technical Data
Performance Metrics
Environmental & Build
- Housing: Self-extinguishing thermoplastic
- Protection: IP 20
- Class: II (EN 60 730-1)
- Ambient Temperature: -10 to +50 °C (non-icing)



