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S800 I/O – TU890

The TU891 is a compact MTU for the S800 I/O. The MTU is a passive unit used for connection of the field wiring and power supply to the I/O modules. It also contains a part of the ModuleBus. The TU891 MTU has gray terminals for field signals and process voltage connections. The maximum rated voltage is 50 V and maximum rated current is 2 A per channel, but these are primarily constrained to specific values by the design of the I/O modules for their certified application.

The MTU distributes the ModuleBus to the I/O module and to the next MTU. It also generates the correct address to the I/O module by shifting the outgoing position signals to the next MTU.

Features and Benefits

  • Intrinsic safety applications – use with AI890, AI893, AI895, AO890, AO895, DI890 and DO890
  • Compact installations of I/O modules
  • Field signals and process power connections
  • Connections to ModuleBus and I/O modules
  • Mechanical keying prevents insertion of the wrong module
  • Latching device to DIN rail
  • DIN rail mounting
Article number 3BSC690075R1
Type Compact
Connection Terminal block
Channels 8
Voltage 24 V
Mounting Horizontal
Mounting detail 55 º (131 °F)
Use with I/O AI890, AI893, AI895, AO890, AO895, DI890, DO890
Process connections 27 blue terminals
Single/redundant I/O Single

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satis@gest.com.tr

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