Ericsson BFU 01 02 BMG980387/1
Brand Name: Ericsson
Product Name: BFU 01 02
Part Number: BMG 980 387 /1 or BMG980387/1
Description: Ericsson BFU 01 02 BMG980387/1 Battery Fuse Unit used in Ericsson Radio System (ERS) power sub-racks 200A -48VDC
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Description
Description
Ericsson BFU 01 02 BMG980387/1
The Ericsson BFU 01 02 (Product Number: BMG980387/1) is a high-capacity Battery Fuse Unit used in Ericsson Radio System (ERS) power sub-racks. It provides a protective interface between the -48 V DC power system and backup battery strings to prevent damage from overcurrent and deep discharge.
Technical Specifications of Ericsson BFU 01 02
- Input Voltage Range: -38.0 to -58.5 V DC (nominal -48 V DC).
- Circuit Breaker Rating: 200 A.
- Maximum Continuous Current: Supports up to 200 A for both charging and discharging.
- Power Dissipation: 89 W.
- Operating Temperature: -40 °C to +65 °C.
- Cooling: Natural convection; no internal fans are required.
- Dimensions: 43 mm (Height) x 145 mm (Width) x 225 mm (Depth).
- Weight: Approximately ≤ 2 kg.
Functional Description of Ericsson BFU 01 02
- Battery Protection: Features a high-power fuse/circuit breaker that interrupts excessive current before it can damage the battery or connected radio equipment.
- Low Voltage Disconnect (LVD): Monitors system voltage and automatically disconnects the batteries if the voltage drops below a critical level to prevent permanent battery damage from deep discharge.
- Control and Monitoring: Reports alarms and operational status to the site’s main control unit via the Enclosure Control (EC) bus.
Signal and Power Interfaces of Ericsson BFU 01 02
The Ericsson BFU 01 02 BMG980387/1 features the following front-facing interfaces for easy access in cabinet deployments:
- Battery Voltage Port: Front-facing Anderson SB 175 connector for battery string connection.
- Communication Port: RJ-45 connector for the Enclosure Control (EC) bus and ECB interfaces.
- Temperature Sensor: Molex Mini-Fit Jr. 2-pin connector for connecting a battery temperature sensor (used for temperature-compensated charging).
- Optical Indicators: Features three LEDs (Red, Green, and Yellow) to indicate alarm status, operational health, and specific fault modes.
- Manual Override: An On/Off switch allows for manual connection or disconnection of the battery for maintenance purposes.
Key Variants in the BFU 01 Series
- BFU 01 01 (BMG 980 337/1): Standard version with a 150A rating.
- BFU 01 02 (BMG 980 387/1): High-capacity version with a 200A rating.
- BFU 01 03 (BMG 980 410/1): The specific 200A revision (often featuring updated firmware support or minor hardware refinements over the 01 02).
In modern 2025 network configurations, these units are often maintained to ensure high-availability power for 5G sites, where battery health monitoring is critical for “zero-downtime” requirements.
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