Penerangan
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.
Ciri-ciri
Kami mengalu-alukan pesanan pukal dan mempunyai kuantiti pesanan minimum hanya satu unit.
Atas permintaan, kami boleh menyediakan semua dokumentasi yang diperlukan, termasuk Sijil Asal/Kepatuhan dan dokumen eksport lain yang diperlukan.
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