ABB TU851 3BSE068782R1 Extended Module Termination Unit
$258.00
$520.00
Description
Product Description
The ABB TU851 3BSE068782R1 is an extended Module Termination Unit (MTU) designed for the ABB S800 I/O platform. It provides a secure interface for field signal connections and distributes the ModuleBus to connected I/O modules and downstream MTUs. Its robust design and modular construction make it suitable for industrial automation environments requiring reliability, flexibility, and safe operation.
Key Features
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Supports up to 16 isolated I/O channels for versatile signal integration.
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Mechanical keying system with two keys and six positions each (36 configurations) prevents incorrect module installation.
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Reliable ModuleBus signal distribution to subsequent MTUs.
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DIN rail mounting with secure latch ensures stable installation.
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High voltage (250 V) and current (3 A per channel) tolerance for industrial-grade operations.
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Compact extended design: 126 mm width (including connector), 64 mm depth, 110 mm height.
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Lightweight construction: 0.22 kg (0.48 lbs) for easy handling and installation.
Technical Specifications
| Attribute | Details |
|---|---|
| Product ID | 3BSE068782R1 |
| Module Type | Extended Module Termination Unit (MTU) |
| Channels | Up to 16 isolated I/O channels |
| Voltage Rating | 250 V maximum |
| Current Rating | 3 A per channel |
| Connections | Terminal block for field signals; ModuleBus for I/O modules and next MTU |
| Addressing | Automatically shifts outgoing position signals to ensure correct module addressing |
| Mechanical Keying | Two keys, six positions each (36 total configurations) |
| Mounting | DIN rail, with latch mechanism |
| Dimensions | Width 126 mm (5 in.), Depth 64 mm (2.52 in.), Height 110 mm (4.3 in.) |
| Weight | 0.22 kg |
| Wire Size | Solid: 0.2–4 mm²; Stranded: 0.2–4 mm² (24–10 AWG) |
| Dielectric Test | 2000 V AC |
| Protection Class | IP20 |
| Operating Temp | 0–55 °C (+32–131 °F) |
| Storage Temp | -40–70 °C (-40–158 °F) |
| Relative Humidity | 5–95%, non-condensing |
| Certifications | CE, EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201, ABS, BV, DNV-GL, LR |
| Corrosion Protection | ISA-S71.04: G3 |
| Pollution Degree | 2 (IEC 60664-1) |
| EMC | EN 61000-6-2, EN 61000-6-4 |
| Equipment Class | Class I (Earth Protected) |
| Compliance | RoHS (EN 50581:2012), WEEE (Directive 2012/19/EU) |
Applications
The ABB TU851 is ideal for industrial cabinets to interface and expand S800 I/O systems. It is compatible with DI820, DI821, DI825, DI828, DO820, DO821, and DO828 modules, suitable for process control, machinery monitoring, and distributed I/O networks.
FAQ
Q: How does the TU851 ensure correct module addressing?
A: The unit shifts outgoing position signals to downstream MTUs, automatically setting correct addresses for connected I/O modules.
Q: What protection does the mechanical keying provide?
A: It prevents incorrect module insertion using two keys with six positions each, allowing 36 unique configurations.
Q: Can this unit handle high-current signals?
A: Each I/O channel supports up to 3 A, and the module is rated for 250 V, suitable for industrial signal loads.
Q: Which modules are compatible with TU851?
A: Compatible modules include DI820, DI821, DI825, DI828, DO820, DO821, and DO828.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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