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S800 I/O – TU838

The TU838 MTU can have up to 16 I/O channels. The maximum rated voltage is 50 V and maximum rated current is 3 A per channel.
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.

The MTU can be mounted on a standard DIN rail. It has a mechanical latch that locks the MTU to the DIN rail.

Two mechanical keys are used to configure the MTU for different types of I/O modules. This is only a mechanical configuration and it does not affect the functionality of the MTU or the I/O module. Each key has six positions, which gives a total number of 36 different configurations.

Features and Benefits

  • Complete installation of I/O modules using 3-wire connections, fuses and field power distribution.
  • Up to 16 channels of field signals and 8 process power connections.
  • Two channels share one fused transducer power terminal.
  • Process voltage can be connected to 2 individually isolated groups, if the I/O module supports it.
  • Connections to ModuleBus and I/O modules.
  • Mechanical keying prevents insertion of the wrong I/O module.
  • Latching device to DIN rail for grounding.
  • DIN rail mounting.
Article number 3BSE008572R1
Type Extended
Connection Terminal block
Channels 16
Voltage 50 V
Mounting Both directions
Mounting detail 55 ºC (131 °F)
Use with I/O AI810, AI815, AI845, DI810, DI811, DI814, DI830, DI831, DI840 and DO814
Process connections 40
up to 16 I/O channels
8 fused sensor power outlets
4 Process power
12 Process power (0 V)
Single/redundant I/O Single

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