Overview
Configured for Ethernet FCI field connection execution in the ABB Select I/O system, the ABB 3BSE078712R1 (3BSE078712R1 MTU) provides direct physical and electrical termination between field devices and Ethernet-based I/O communication structures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ABB 3BSE078712R1 |
| Brand | ABB |
| Product Type | Module Termination Unit (MTU) for Ethernet FCI Select I/O |
| Communication Protocol | Ethernet |
| System Platform | ABB Select I/O |
| Installation in Hazardous Area | Yes |
| Hazardous Location Certification | ATEX, IECEx, cULus, CCC |
| Protection Class | IP20 acc. to IEC 60529 |
| Weight | 500 g including base |
| Dimensions | 135 mm W x 95.5 mm D x 210 mm H |
| Operating Temp | -40 deg C to +70 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Relative Humidity | 5 to 95 %, non-condensing |
| Pollution Degree | Pollution Degree 2 acc. to IEC 60664-1 |
| Altitude Range | -1000 to 5000 m, restrictions apply |
| Mechanical Standard | IEC 61131-2 |
| EMC Compliance | IEC/EN 61000-6-4, IEC/EN 61000-6-2 |
| Overvoltage Category | Category II acc. to IEC 60664-1 |
| Electrical Safety | IEC/EN 61010-1, UL 61010-1, CSA-C22.2 No. 61010-1-12 |
| Additional Safety Standard | IEC/EN 61010-2-201, UL 61010-2-201, CSA C22.2 No. 61010-2-201 |
| Marine Certification | DNV, ABS |
| Corrosive Atmosphere Class | G3 |
| RoHS Compliance | EU RoHS, UAE RoHS, CN RoHS |
| WEEE Compliance | EU |
| Power Consumption | Not specified |
ABB Select I/O Ethernet Communication and I/O Density Scaling
The 3BSE078712R1 operates as an Ethernet FCI Module Termination Unit within the ABB Select I/O architecture. It terminates field wiring and maintains the physical connection interface between Ethernet-based FCI communication and connected I/O components.
The Select I/O design supports modular I/O density scaling through distributed field termination. In addition, the Ethernet communication structure enables organized signal transmission between field interfaces and higher-level control systems.
The unit follows ABB industrial control hardware practices for backplane and network communication integration. Therefore, installation requires compatibility with the designated Select I/O mechanical configuration and system firmware environment.
Frequently Asked Questions
Q: What communication protocol does the ABB 3BSE078712R1 support?
A: The ABB 3BSE078712R1 supports Ethernet communication within the ABB Select I/O system architecture.
Q: Can the ABB 3BSE078712R1 be installed in hazardous areas?
A: Yes. The unit supports hazardous area installation and includes ATEX, IECEx, cULus, and CCC hazardous location certifications.
Q: What environmental conditions apply to this MTU?
A: The module operates from -40 deg C to +70 deg C and supports 5 to 95 % relative humidity without condensation.
Field Installation Guidelines
- Install the ABB 3BSE078712R1 on the specified Select I/O mechanical mounting structure.
- Verify that the Ethernet communication interface matches the approved system configuration before commissioning.
- Maintain proper separation between signal wiring and high-voltage power cables to reduce electrical interference.
- Connect cable shields according to site grounding standards and applicable EMC requirements.
- Confirm hazardous area installation requirements before energizing equipment in classified locations.
- Check enclosure protection requirements because the module provides IP20 protection and requires suitable cabinet installation.
- Inspect terminal connections for correct mechanical engagement before system startup.
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