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AlphaRex 3 digital time switches for distribution board installation with text-guided programming concept simple programme creation via PC using Legrand AlphaSoft and data key programming to the second with zero crossing programming by selecting daily blocks (individually adjustable) or selecting preset blocks Mon-Sun, Mon-Fri or Sat-Sun additional convenience functions: holiday programme, random programme, 1 h test cycle function, cycle time adjustable between 2 s and 2 h operating hours counter, counting range 65.535 hours Power reserve 5 years for date and time EEPROM memory for backing up the switching programmes Programme backup to data key possible Backlighting Switching times visible in the display as a weekly overview Automatic summer/winter time changeover Accuracy +/- 0.1 sec/day Mains synchronous operation adjustable Manual switching Input lock via PIN code Digital weekly time switch- AlphaRex 3 D21/D22 Text
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