TH-857T Digital DIN Rail Timer


The Electronic Programmable Timer for DIN Rail Installation


  • Latest technology COMOS Quartz Micro-Controller
  • Digital electronics general purpose time switch with daily and weekly programs
  • Repeat programs with 8 ON/OFF locations
  • LED indicate turn on
  • Shortest switching interval 1 minute
  • LCD indication for time-of-day, weekday & switching status
  • NiMH rechargeable button cell back up battery for power reserve more than 200 hours after fully charged. NiMH is an environmental protection free green battery
  • Summer time function
  • Three ways manual override operating mode for ON/AUTO/OFF by push button
  • Simple and easy to program and operating by multi-functional keys
  • Easy installation for DIN rail application
  • Protected with transparent front cover
  • Designed for full module of 35 mm size
  • Safety cover to protect each terminal


  • Input range: 220-250VAC or 110-125VAC
  • Output: Resistive Load: 16Amps@250VAC Maximum 3,680Watts

                           Inductive Load:     8Amps@250VAC  COSØ=0.4

  • Back up battery: 2.4VDC NiMH rechareable battery
  • Battery life cycle: 1000 times from empty to fully charge
  • Battery reserve time: More than 200 hours after fully charge
  • Approval: CE EMC LVD