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Tariff time switch TR 687-3 top2

The TR 687-3 top2 digital time switch from Theben with 3 channels and annual program is noted for its easy installation and straightforward programming via OBELISK top2 software.


  • Order No. 6870103
  • Digital time switch with yearly program
  • 3 channels
  • 1 x 16 A / 2 x 10 A (Changeover contacts)
  • High time accuracy typical ? ± 0.25 s/day
  • Interface for OBELISK top2 memory card
  • PC-programming with OBELISK top2 software
  • Transfer of programs via OBELISK top2 memory card
  • Text in display
    • preset date and time
    • fully operable without mains connection
  • DuoFix spring terminals
    • For 2 conductors each
    • Wire or strand (with or without wire end sleeve)
    • Wire diameter: 0.5 – 2.5 mm²
    • Button for releasing plug-in connection
  • Automatic summer/winter time changeover
    • Can be deactivated
    • Date rule options are already stored for Europe
    • Own date rule options or changeover around set dates are available
  • With EEPROM memory provides reliable operating data capture even with loss of power
  • 5 program memories each with 200 memory locations
  • 10 years power reserve

Technical data

TR 687-3 top2 
Operating voltage110-230V~, -15%, +10%
Frequency50 – 60 Hz
Installation typeFront panel installation/wall installation
Type of contactChangeover contact
Width4 modules
Switching outputphase-independent
Opening width< 3 mm
Programyearly program
Program functionsON-OFF
Number of channels3
Number of memory locations200
Power reserve10 years
Switching capacity at 250 V AC, cos φ = 116 A (Channel 1), 10 A (Channel 2-3)
Switching capacity at 250 V AC, cos φ = 0,63 A (Channel 1-3)
Shortest switching times1 min
Time accuracytypical ± 0,25 s/day at 23°
Time basisQuarz
Memory card suppliedno
Type of connectionDuoFix spring terminals
Keyboards4 touch buttons
Housing and insulation materialHigh-temperature resistant, self-extinguishing thermoplastic
Type of protectionIP 51
Protection classII as per EN 62 054-21
Ambient temperature-10 °C … +55 °C

Connection example



Operating instructionsPDF acrobat_2
SoftwareZIP zip_netto

Scale drawings


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