ABB TB840 Modulebus Cluster Modem

The ABB TB840 actually refers to two different products within the ABB portfolio: the TB840A and the TU840. To provide you with the most accurate technical specifications, I need to know which specific product you're interested in.

TB840A:

• Description: Modulebus Cluster Modem in the S800 I/O communication interface series.

• Key features:
  • 2 fiber optic ports to optical ModuleBus.
  • ModuleBus (electrical) to the I/O Modules.
  • Supervisory functions of I/O ModuleBus and power supply.

• Technical specifications:
  • Dimensions: 54mm (depth) x 119mm (height) x 96mm (width)
  • Power consumption: 24 V typical
  • Weight: 0.272 kg
  • Environmental specifications:
    • Operating temperature: -25°C to +55°C (-13°F to +131°F)
    • Storage temperature: -40°C to +85°C (-40°F to +185°F)
    • Relative humidity: 5 to 95%, non-condensing
    • Protection class: IP20

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