The ABB HIEE300831R0001 UAC346AE01 terminal unit provides secure wiring termination for turbine control I/O signals. This module connects field devices to the main control system through organized terminal blocks. The unit simplifies installation and maintenance by consolidating all field connections in one location.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Terminal unit (I/O termination) |
| Model Code | UAC346AE01 |
| Termination Points | 64 channels (configurable) |
| Dimensions (W x H x D) | 320 x 180 x 60 mm |
| Weight | 1.8 kg |
| Terminal Type | Screw-clamp (rising cage) |
| Wire Gauge Range | 0.2 mm² to 4 mm² (solid/stranded) |
| Terminal Pitch | 5.08 mm (standard spacing) |
| Number of Terminal Blocks | 4 x 16-position blocks |
| Internal Bus Connectors | 2 x 50-pin ribbon cable headers |
| Signal Types | Analog (4-20mA, 0-10V), digital (24V DC), thermocouple |
| Isolation Barrier | Integrated partition between field and logic sides |
| Component Count | 64 x terminal positions, 4 x LED indicators, 2 x fuses |
| Fuse Protection | 2 x 2A (fast-blow, field power) |
| LED Indicators | 4 x green (channel group status) |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Protection Class | IP20 |
| Mounting | DIN rail (35mm) or panel mounting |
| Approvals | CE, UL, CSA |
Organized Termination for Simplified Wiring
The ABB HIEE300831R0001 UAC346AE01 organizes 64 I/O termination points into four 16-position blocks. This structured layout simplifies wire routing and reduces installation time. Each terminal accepts solid or stranded wires from 0.2 mm² to 4 mm². Screw-clamp connections ensure secure and vibration-resistant terminations for long-term reliability.
Flexible Signal Compatibility
This terminal unit accommodates analog, digital, and thermocouple signals through the same terminal blocks. Users can connect 4-20mA transmitters, 0-10V sensors, or 24V DC digital devices. The module handles thermocouple inputs with copper compensation for accurate temperature measurement. Standard 5.08 mm terminal spacing provides ample room for wire termination.
Clear Status Indication for Diagnostics
Four green LEDs provide group-level status indication for the 64 termination points. Each LED corresponds to one 16-position block for quick diagnostics. Operators can easily identify which channel group has active signals. The LED indicators help during commissioning and troubleshooting procedures.
Fuse Protection for Field Wiring Safety
Two 2A fast-blow fuses protect the field power circuits from overcurrent faults. These fuses isolate faulty field devices without affecting the entire system. Users can replace fuses easily without removing the terminal unit from the DIN rail. Fuse status indicators show blown conditions for rapid fault identification.
Robust Mechanical Design for Industrial Environments
The module measures 320 x 180 x 60 mm and weighs 1.8 kg for stable installation. An integrated isolation barrier separates field wiring from internal logic circuits. This partition provides physical and electrical separation for safety. The IP20-rated housing protects internal components from accidental contact and dust.
Easy Integration with Control Modules
Two 50-pin ribbon cable headers connect this terminal unit to adjacent control modules. These headers transfer all 64 I/O signals between the field devices and the processor. The cable interface supports both analog and digital signals without additional conversion. Users can mount the terminal unit close to the control module for short cable runs.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 110 × 55 × 90 mm |
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