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SKU:3BSE042558R1
TU848 Module Unit | ABB Redundant I/O Line Redundancy
Manufacturer: ABB
Product No.: 3BSE042558R1
Product Type: Termination Unit
Product Origin: Sweden
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months
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Description
ABB TU848 Redundant Terminal Unit
The ABB TU848 is a redundant I/O terminal unit designed for high-availability industrial control systems. It supports both line and module redundancy with dual power inputs.
Product Identification
- Manufacturer: ABB
- Model: TU848
- Article Number: 3BSE042558R1
- Type: Redundant TB840/TB840A, Redundant I/O, Dual Power
- Communication Protocol: Modulebus
Technical Specifications
- Power Input: 24 V DC (19.2-30 V range)
- Line Redundancy: Supported
- Module Redundancy: Supported
- Hot Swap: Not supported
- Master/Slave: N/A (Modulebus communication)
- Mounting: Vertical or Horizontal orientation
Physical Specifications
- Dimensions: 124mm W × 186.5mm H × 47mm D (including latch)
- Weight: 0.45 kg (0.99 lbs)
- Width: 124 mm (4.88 in.)
- Height: 186.5 mm (7.34 in.)
- Depth: 47 mm (1.85 in.)
Redundancy Features
- Dual Power Inputs: Ensures continuous operation during power supply failures
- Line Redundancy: Maintains communication if primary communication line fails
- Module Redundancy: Provides backup if primary I/O module fails
- High Availability: Designed for critical applications requiring minimal downtime
Shipping Information
- Includes: 1x ABB TU848 Redundant Terminal Unit
- Standard accessories as per factory packaging
- Installation and configuration documentation
- Shipping via FedEx, UPS, or DHL with protective packaging
Frequently Asked Questions (FAQ)
What is the difference between line and module redundancy?
- Line redundancy protects against communication cable failures, while module redundancy provides backup if the I/O module itself fails. The TU848 supports both for maximum system reliability.
What voltage range does the power input support?
- The TU848 accepts 24 V DC power with a wide input range of 19.2 to 30 volts, accommodating typical industrial voltage variations.
Can this module be replaced without shutting down the system?
- No, the TU848 does not support hot swap functionality. System shutdown is required for module replacement or maintenance.
Additional Specifications
- Blue
- White
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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