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ABB UFC765AE102 3BHE003604R0102 – Earth Fault Monitor (EAF) Board
Product Overview
The ABB UFC765AE102 3BHE003604R0102 is a dedicated earth fault monitor board engineered for industrial electrical and automation systems. It delivers precise detection and localization of ground faults, short circuits, and open circuits within medium- to high-voltage networks, primarily serving ABB’s Symphony Plus and Advant OCS platforms. This unit addresses critical safety risks by enabling rapid fault identification, preventing equipment damage and unplanned downtime in power generation, oil and gas, and manufacturing environments. Its robust, conformal-coated design ensures stable performance under harsh industrial conditions.
Technical Specifications — UFC765AE102 3BHE003604R0102
| Parameter | Value |
|---|---|
| Product Model | UFC765AE102 3BHE003604R0102 |
| Manufacturer | ABB |
| Product Type | Earth Fault Monitor (EAF) Board / FLI Board |
| Power | 24V DC ±20% |
| Communication / Protocol | Masterbus 300, Modbus RTU |
| Operating Temperature | -25°C to +70°C |
| Mounting | System backplane / rack mounting |
| Dimensions (HxWxD) | 128mm x 102mm x 25mm |
| Weight | 0.3kg |
| Typical Interfaces | Masterbus 300, status LED indicators, fault relay outputs |
| Compliance | CE, UL, IEC 61131-2, ISO 9001:2015 |
ABB UFC765AE102 3BHE003604R0102
Key Features and Benefits — UFC765AE102 3BHE003604R0102
- Detects and locates earth faults, short circuits, and open circuits across up to 128 monitored circuits.
- Supports Masterbus 300 communication, connecting to up to 16 network nodes for real-time diagnostics.
- Hot-swappable design allows replacement without system shutdown, minimizing operational interruptions.
- Conformal coating protects against dust, humidity, and industrial contaminants, enhancing durability.
- Integrated LED indicators provide clear visual status and rapid on-site fault identification.
- Built-in isolation (≥2500V AC) safeguards against electrical interference and transient voltage spikes.
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Installation and Maintenance — UFC765AE102 3BHE003604R0102
- Install on a compatible system backplane in a well-ventilated cabinet, away from extreme heat and strong electromagnetic fields.
- Confirm correct bus and power connections before activation to avoid signal conflicts or component stress.
- Monitor LED indicators during operation: steady green signifies normal function, while flashing or red signals active faults.
- Perform quarterly inspections to check connections, clean surfaces, and verify fault detection responsiveness.
- Replace using hot-swap capability when required; align the board with backplane slots and secure without excessive force.
- Store spare units in dry, temperature-stable environments to preserve coating integrity and electrical performance.
