The SELEKTA series from Theben / Timeguard features astronomical digital time switches with weekly programs. There are both single and dual channel versions available from Theben / Timeguard with up to 16 A resistive load switching capabilities. Other key features of the SELEKTA range include a 1 minute segment length, automatic summer / winter changeover, a battery life of up to 10 years and up to 84 memory locations.

Astronomical time switch with weekly program
Offset for adjusting of sunrise and sunset times
Position data via coordinates or country/city lists can be programmed
Fixed ON-OFF switching times can be programmed (e.g. night time interruption)
Simulation of switching times (calculated astronomical times and programmed ON/OFF switching times)
Reversible astronomical mode (evenings ON - mornings OFF or evenings OFF - mornings ON) or can be deactivated
DuoFix spring terminals
Wire diameter: 0.5 → 2.5 mm²
Easy to operate button for releasing via plug-in connection
Text-oriented user guidance in display
Interface for OBELISK top2 memory card (PC programming)
10 year power reserve (lithium battery)
Zero-cross switching for relay-saving switching and high lamp loads
Permanent switching ON/OFF
Integrated operating hour counter
Reset option available
Display back light (can be turned off if desired)
Automatic summer/winter time changeover
Date rule options are already stored for Europe, the USA and other countries

VDE