AHC15T series Astronomical Digital Time Switch

The AHC15T astronomical time switch automatically turn ON/OFF at the preset sunrise/sunset time based on data stored in the database. No need to adjust the time switch to keep up with changing sunrise/sunset times.

  • 1 channels
  • Latitude set North: 1 ~ 66º and South:1 ~ 66º
  • Perpetual calendar (40 years)
  • Switching preselection
  • Fully operable without mains connection
  • Built-in lithium battery,power failure memory
  • Program follows / non-follow the sunrise / sunset
  • Screw terminals
  • Auto-correct time(-30 sec ≤△t≤30 sec)
  • Preset date and time
  • 12/24 hour format conversion
  • Manually set Daylight Saving Time(1 Hours)
  • Program follows / non-follows the change in Daylight Saving Time

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Weekly Program

ON/OFF Program


Number of Programs

5 Years

Power Reserve

2 Modules

Mph Product Width

DIN Rail

Way to Install

Product Selection

VoltageAC/DC 12V or AC/DC 24V or AC 110V or AC220V
Frequency50Hz or 60Hz
Terminal3 or 5
Switching capacity16A or 20A

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

AH15T manual

File size : 117.13 KB


AHC15T series digital Astronomical time switch

File size : 217.33 KB


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