ABB TU812V1 S800 Module Termination Unit 3BSE013232R1
Manufacturer: ABB
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Part Number: TU812V1
Condition：New with Original Package
Product Type: Module Termination Units
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB TU812V1 S800 Module Termination Unit
The ABB TU812V1 (3BSE013232R1) is a compact 50 V Module Termination Unit (MTU) designed for the ABB S800 I/O system within the System 800xA control platform. It serves as a passive wiring interface connecting field devices to I/O modules while extending internal ModuleBus signals across the I/O cluster.
Field Wiring and Module Keying
Field signals are connected through a single 25-pin D-sub connector accommodating up to 16 signal channels. To protect field devices and control hardware, the unit features mechanical keying with 36 possible configurations to prevent the insertion of incorrect module types. It also automatically passes position signals to adjacent MTUs to maintain sequential I/O addressing.
Power Capacity and Installation Requirements
The unit supports up to 2 A per individual I/O channel and a total process connection current of 5 A. Rated for 50 V insulation and tested to 500 V AC dielectric strength, the TU812V1 mounts directly on standard DIN rails and holds certifications for hazardous locations, including ATEX Zone 2 and Class I, Division 2.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | TU812V1 |
| Brand | ABB |
| Part Number | 3BSE013232R1 |
| Product Type | Module Termination Unit (MTU) |
| System Compatibility | ABB S800 I/O, System 800xA |
| Signal Connections | 16 channels via 25-pin D-sub connector |
| Rated Insulation Voltage | 50 V |
| Max Current per Channel | 2 A |
| Max Total Process Current | 5 A |
| Dielectric Test Voltage | 500 V AC |
| Mechanical Keying | 2 keys × 6 positions (36 configurations) |
| Operating Temperature | 0 deg C to +55 deg C (certified +5 deg C to +55 deg C) |
| Storage Temperature | -40 deg C to +70 deg C |
| Pollution Degree | Class 2 |
| Protection Rating | IP20 |
| Mounting Type | DIN rail |
| Dimensions (W × H × D) | 64 × 170 × 64 mm |
| Weight | 0.17 kg |
| Certifications | CE, UL, ATEX Zone 2, C1 Div 2, ABS, BV, DNV-GL, LR |
Frequently Asked Questions
Q: How are field signals wired to the ABB TU812V1 termination unit? A: Field connections are made via a front-facing 25-pin D-sub connector that handles up to 16 individual I/O channels.
Q: How does the TU812V1 prevent inserting the wrong I/O module? A: It uses a mechanical keying system with two 6-position keys, providing 36 unique keying combinations to ensure only designated module types can be inserted.
Q: Is the TU812V1 approved for use in explosive atmospheres? A: Yes. The TU812V1 is certified for hazardous environments under ATEX Zone 2 and Class I, Division 2 standards.