Excellent PLC
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Description
The ABB TU848 is a Module Termination Unit (MTU) designed for use with the redundant configuration of the TB840/TB840A Optical ModuleBus Modem in the S800 I/O system. It enables secure, reliable connectivity and efficient power and communication distribution for redundant I/O setups.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | TU848 |
| Article Number | 3BSE042558R1 |
| Power Supply Input | 24 V DC (19.2 – 30 V) |
| ModuleBus Current | 5 V: Max 1.5 A / 24 V: Max 1.5 A |
| Power Dissipation | 2.5 W |
| Mounting Type | DIN rail (Vertical or Horizontal) |
| Mechanical Keys | 36 combinations |
| Insulation Voltage | 50 V |
| Dielectric Test Voltage | 500 V AC |
| Wire Size | 0.2 – 2.5 mm² (Solid/Stranded) |
| Recommended Torque | 0.5 Nm |
| Operating Temperature | 0 to +55 °C (approved range: +5 to +55 °C) |
| Storage Temperature | -40 to +70 °C |
| Relative Humidity | 5 – 95 %, non-condensing |
| Ingress Protection | IP20 |
| Certifications | CE, ATEX Zone 2, cULus Class 1 Zone 2, RoHS, WEEE |
| Marine Certifications | ABS, BV, DNV-GL, LR |
| Dimensions (W x H x D) | 124 x 186.5 x 47 mm |
| Weight | 0.45 kg |
Product Applications
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Redundant I/O module installations
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High-availability industrial control systems
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ABB System 800xA configurations
-
Offshore and marine environments
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Critical infrastructure automation
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Safe and reliable module termination in hazardous zones
Product Advantages
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Redundancy Ready: Supports redundant ModuleBus and power for high availability.
-
Easy Configuration: Rotary switch and mechanical keys enable flexible setup.
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Secure Mounting: DIN rail latching device ensures physical stability and grounding.
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Safe Operation: Certified for use in hazardous and marine environments.
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Compact Design: Fits easily in space-constrained control panels.
Frequently Asked Questions (FAQ)
Q1: What is the function of the TU848?
A1: It serves as a termination unit for redundant TB840/TB840A modems, connecting them to the S800 I/O system.
Q2: Does TU848 support redundant communication and power?
A2: Yes, it supports both redundant power and ModuleBus communication.
Q3: What configuration options are available?
A3: The unit offers 36 mechanical key combinations for flexible module compatibility.
Q4: Can the TU848 be used in hazardous areas?
A4: Yes, it is certified for ATEX Zone 2 and cULus Class 1 Zone 2 environments.
Q5: What is the operating temperature range?
A5: 0 to +55 °C, with approvals valid from +5 to +55 °C.
Q6: Is the TU848 hot-swappable?
A6: No, hot swapping is not supported.
Q7: How is the cluster address set?
A7: Via a rotary switch on the termination unit.
Q8: What is the mounting method?
A8: It is designed for DIN rail mounting (vertical or horizontal).
Q9: Does the unit include any connectors?
A9: No connectors are included; wiring is via terminal blocks.
Q10: What size wires can be used with TU848?
A10: It supports 0.2 to 2.5 mm² solid or stranded wires.
Related Models from the Same Series
| Model | Description | Power Input | Mounting | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| TU849 | Termination Unit for non-redundant TB840/A | 24 V DC | DIN Rail | 124 x 186.5 x 47 | 0.45 kg |
| TB840 | Optical ModuleBus Modem (Redundant Use) | 24 V DC | DIN Rail | 45 x 120 x 123 | 0.3 kg |
| TB840A | Optical ModuleBus Modem (Redundant Use) | 24 V DC | DIN Rail | 45 x 120 x 123 | 0.3 kg |
| TU830V1 | MTU for analog I/O modules | 24 V DC | DIN Rail | 115 x 186.5 x 60 | 0.4 kg |
| TU831V1 | MTU with integrated fuse | 24 V DC | DIN Rail | 115 x 186.5 x 60 | 0.4 kg |
| TU860V1 | MTU for digital input/output modules | 24 V DC | DIN Rail | 126 x 186.5 x 56 | 0.46 kg |
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