Product details
Overview
The TU854 Redundant Horizontal Module Termination Unit (MTU) is engineered for horizontal DIN rail installation, accommodating redundant S800 I/O modules. This passive device serves as the interface for field wiring and includes part of the ModuleBus for seamless module communication. It supports up to eight I/O channels and ensures reliable operation in industrial applications.
Key Features of TU854
- Compatibility: Designed for use with AI845, AI880A, and DP840 modules, ideal for 50V applications.
- Mechanical Keying: Prevents incorrect module insertion with 36 configurable key combinations.
- Durable Design: IP20-rated enclosure and Class II earth protection ensure safe operation.
- Channel Support: Up to 8 I/O channels, each with dual connection terminals.
- DIN Rail Mounting: Secure latching mechanism for easy installation and grounding.
- Enhanced Connectivity: Includes two ModuleBuses for efficient module communication and address generation.
- Robust Locking Mechanism: Keeps modules securely in place and operational.
- Field Connections: Supports D-sub 25-pin connectors for streamlined wiring.
Technical Specifications
| Specification | Detail |
|---|---|
| Brand | ABB |
| Model | TU854 |
| I/O Channels | 8 channels (2 terminals per channel) |
| Connector Type | 25-pin D-sub (male) |
| Maximum I/O Channel Current | 2 A |
| Process Voltage Connection | 5 A (L+) |
| ModuleBus Current Distribution | 5 V: 1.5 A, 24 V: 1.5 A |
| Mechanical Key Configurations | 36 combinations |
| Locking Mechanism | Module lock and operational enable |
| Protection Class | Class II (IEC 61140) |
| Enclosure Rating | IP20 (IEC 60529) |
| Insulation Voltage | 50 V |
| Dielectric Test Voltage | 500 V a.c. |
| Dimensions (W x D x H) | 131 mm x 64 mm x 186.5 mm |
FAQ
1. What modules are compatible with the 3BSE069966R1 MTU?
It is designed for ABB AI845, AI880A, and DP840 modules.
2. Can the 3BSE069966R1 MTU be used vertically?
No, it is specifically designed for horizontal mounting.
3. What is the maximum current capacity for each channel?
Each I/O channel can handle a maximum continuous current of 2 A.
4. What protection does the MTU provide?
It features an IP20-rated enclosure and Class II earth protection.
5. How many ModuleBuses does the 3BSE069966R1 distribute?
The MTU distributes two ModuleBuses, supporting redundancy and next-module connections.
For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units
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