ABB TU830V1 3BSE013234R1 S800 I/O Extended MTU Terminal Unit

The ABB TU830V1 (3BSE013234R1) is an extended MTU mounting and termination unit for ABB S800 I/O system. It provides 16‑channel field wiring terminals for connecting field sensors and actuators to corresponding S800 I/O modules, distributing ModuleBus signal and process power for distributed I/O stations.

This DIN‑rail mount passive terminal base integrates built‑in group fuses, mechanical keying for module anti‑mis‑insertion, and cascading ModuleBus function. It supports hot‑swap compatible I/O modules. It acts as critical aftermarket spare for maintenance, overhaul and retrofitting of chemical, power and process‑plant DCS control cabinets.

Main Specifications

• Brand: ABB; Model:TU830V1; Part No:3BSE013234R1; Type: S800 I/O Extended MTU Termination Unit
• Applicable System: ABB S800 I/O, AC800M DCS control platform
• Channels: 16‑channel field terminals; Max voltage: 50V; Per‑channel current: 2A; Built‑in 6.3A group fuses
• Function: Field signal termination, ModuleBus cascading, process power distribution, mechanical module keying protection
• Feature: DIN‑rail mounting, passive base unit, hot‑swap support, anti‑wrong‑insertion mechanical key design
• Installation: Standard DIN‑rail mounting inside automation control cabinet
• Power: Process external power supply; Operating Environment:0℃ ~ +60℃, 5%‑95% RH non‑condensing
• Certifications: CE compliant for process‑industry DCS automation applications

Core Functions

• Provide screw terminal connections for field instruments, transfer analog and discrete signals between field devices and S800 I/O modules.
• Distribute ModuleBus communication signal and realize bus cascading among multiple MTU bases for I/O station expansion.
• Integrated group fuse protection prevents over‑current damage to field loops and I/O internal circuits.
• Mechanical keying structure avoids installing mismatched I/O modules, reduce on‑site wiring and hardware configuration faults.
• Cooperate with hot‑swap I/O modules, allow online module replacement without disconnecting field wiring.
• Compact DIN‑rail base facilitates disassembly and replacement during DCS cabinet overhaul and field‑wiring debugging work.

Application Scenarios

• Field wiring termination base component for ABB S800 distributed I/O DCS systems.
• Critical spare‑part for petrochemical, chemical plant and power‑plant DCS control cabinets.
• Retrofit and spare replacement for legacy TU830V1 termination‑unit DCS‑I/O‑hardware upgrade projects.
• DCS cabinet overhaul, field‑loop wiring debugging and faulty MTU base‑unit replacement tasks.
• Spare‑parts inventory for process‑automation integrators and process‑industry engineering contractors.

• Global aftermarket spare supply for technical teams maintaining ABB AC800M S800 I/O automation hardware.