AHD16T series Astronomical Digital Time Switch

The AHD16T astronomical time switch automatically turn ON/OFF at the preset longitude and latitude, time zone. You don’t need to adjust your timer to keep up with changing sunrise/sunset times.

  • 1 channels
  • Longitude range: east longitude / west longitude 0 ~ 180°
  • Latitude range: latitude / latitude 0 ~ 68°
  • Perpetual calendar (40 years)
  • Switching preselection
  • Fully operable without mains connection
  • Built-in lithium battery,power failure memory
  • Automatic key lock function, effectively prevent misuse.
  • Time zone range: 12 ~ -12
  • Screw terminals
  • Preset date and time
  • 12/24 hour format conversion
  • Manually set Daylight Saving Time(1 Hours)
  • The sunrise and sunset time can be checked according to the setting longitude, latitude, date and time zone.

Enquire Now

Weekly Program

ON/OFF Program


Number of Programs

5 Years

Power Reserve

2 Modules

Mph Product Width

DIN Rail

Way to Install

Product Selection

Switching capacity16A

Maximum Recommended Load (10,000 operations)

Filament / Halogen lamp 230VEnergy saving lampsLED lamp < 2 WLED lamp 2–8 WLED lamp > 8 WFluorescent lamp load (electronic ballast)
2600 W170 W30 W100 W120 W650 W

Technical Data

Fluorescent lamp load (conventional) not corrected1000VA
Fluorescent lamp load (conventional)series-corrected1000VA
Fluorescent lamp load (conventional)parallel-corrected730 VA 80μF
Minimum interval1 min.
Time accuracy at 25 °C≤± 2 Sek./day (quartz)
Housing and insulation materialSelf-extinguishing thermoplastic
Type of protectionIP 20
Class of protectionII according to EN 60 730-1
Permitted ambient temperature-10 ~ +50 °C (non-icing)
Test approvalCE

Download Documents

AHD16T manual

File size : 445.13 KB


AHD16T digital Astronomical time switch

File size : 183.66 KB


Interested in Our Product?

Please submit the contact form below to speak with our product expert.