Description

ABB TU830V1 Extended Module Termination Unit

Configured for field wiring termination, process voltage distribution, and ModuleBus signal routing in the ABB S800 I/O system, the ABB TU830V1 (TU830 Extended Module Termination Unit) provides the physical interface between field circuits and the I/O module.

Hardware Specifications

Parameter	Specification
Model	TU830V1
Base Model	TU830
Brand	ABB
Product Type	Extended Module Termination Unit (MTU)
Part Number / Catalog Code	3BSE013234R1
System Compatibility	ABB S800 I/O system
I/O Channels	Up to 16
Maximum Rated Voltage	50 V
Maximum Rated Current per Channel	2 A
Process Voltage Connections	2 individually isolated groups, UP1 and UP2
Group Fuse Rating	6.3 A time-lag fuse, 5 x 20 mm
ModuleBus Function	Distributes ModuleBus and shifts position signals for I/O module addressing
Wire Size, Solid	0.2 - 4 mm2
Wire Size, Stranded	0.2 - 2.5 mm2, 24 - 12 AWG
Terminal Tightening Torque	0.5 - 0.6 Nm
Mechanical Keying	36 coding combinations
Mounting	Standard DIN rail
Grounding	Built-in system grounding mechanism
Operating Temp	0 deg C to 55 deg C

ModuleBus and I/O Density

The TU830V1 distributes ModuleBus communication through the S800 I/O termination structure. It also shifts outgoing position signals so that the connected I/O module receives the corresponding hardware position address.

Furthermore, the MTU supports up to 16 I/O channels while maintaining separate process voltage groups. The two groups provide individual isolation and fuse protection for connected field circuits.

The 36 available mechanical coding combinations restrict incompatible I/O module insertion. Therefore, the selected coding must correspond to the intended I/O module before installation.

Frequently Asked Questions

Q: Does the TU830V1 provide I/O signal conversion?

A: No. The TU830V1 functions as a termination and distribution unit. The connected S800 I/O module performs the actual signal processing.

Q: What process voltage protection does the TU830V1 provide?

A: The unit provides two individually isolated process voltage groups. Each group uses a 6.3 A time-lag fuse according to the supplied specifications.

Q: Can the TU830V1 support more than 8 I/O channels?

A: Yes. The supplied data specifies a maximum of 16 I/O channels for the TU830V1.

Field Installation Guidelines

• Mount the TU830V1 securely on the specified DIN rail before connecting field wiring.
• Verify the mechanical coding before inserting the associated S800 I/O module.
• Separate process voltage wiring from communication and low-level signal wiring where cabinet design permits.
• Maintain correct polarity and terminal identification for every field circuit.
• Tighten field terminals to 0.5 - 0.6 Nm where the supplied specification applies.
• Select conductor sizes within the stated 0.2 - 4 mm2 solid or 0.2 - 2.5 mm2 stranded range.
• Connect the grounding arrangement according to the S800 installation design and cabinet grounding scheme.
• Verify both process voltage groups independently before energizing the connected I/O circuits.
• Inspect fuse installation and confirm that the installed fuse type matches the specified protection arrangement.
• Do not exceed 50 V rated voltage or 2 A rated current per I/O channel.

Specifications

• Brand: ABB

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems