Theben TR 648 Digital Astronomical Timer

£285.37 + VAT

Digital time switch with yearly and astronomical time program
Time synchronisation via connection of external DCF antenna
Can be operated without mains supply
8 channels
DuoFix spring terminals for 2 conductors each
Text-oriented user guidance in display
800 memory locations
Interface for OBELISK top2 memory card (PC programming)
8 year power reserve (lithium battery)
ON-OFF switching times

Pulse program
Cycle program
Extensive yearly clock functions
Astronomical switching function (automatic calculation of sunrise and sunset times for the whole year)
Switching preselection
Permanent switching ON/OFF
Count-down timer
Integrated hour counter
Holiday program
2 random programs
Display backlight (can be turned off)
PIN coding
Automatic summer/winter time changeover
Time and date synchronisation of other bus participants

Information Table
Lead Time	Typically 2-4 Weeks
SKU	6489210

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SKU: 6489210 Category: Time Switches Tag: Astronomical Timer

Operating voltage KNX	Bus voltage, ≤12 mA
Width	3 modules
Installation type	DIN rail
Number of channels	8
Number of memory locations	800
Time accuracy at 25 °C	≤ ± 0,5 s/day (quartz) or DCF77
Shortest switching times	1 s
Display	LCD
Ambient temperature	-5°C … 45°C
Type of protection	IP 20
Protection class	III according to EN 60 730-1

Brand

Theben

German manufacturer with of high quality KNX components including actuators, binaries and DALI.

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