Victron VE.Bus BMS NG - BMS300200300
Victron VE.Bus BMS NG - BMS300200300
SKU:BMS300200300
Brand: Victron
Low stock: 7 left
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Product Details
Product Details
The Victron VE.Bus BMS NG is a next‑generation battery management system designed specifically for Victron Lithium NG (LiFePO₄) batteries. It works in setups with VE.Bus inverters or inverter/chargers, and intelligently manages charge and discharge to protect cells from under‑ or over‑voltage and temperature extremes.
This BMS supports 12 V, 24 V or 48 V systems, by allowing up to 50 batteries in 12 V or 24 V banks, or up to 25 in a 48 V configuration. That gives potential storage capacities of up to 192 kWh (12 V), 384 kWh (24 V) or 128 kWh (48 V), offering scale for sizable installations. The unit integrates with VE.Bus via its two RJ45 ports, giving direct communication with Victron inverters or inverter/chargers.
It features built-in Bluetooth Smart, so you can configure, monitor and update firmware via the VictronConnect app. You’ll see battery parameters such as state of charge, individual cell voltages, temperature, warnings and alarms directly in the app, eliminating the need for separate shunts.
For system safety, the BMS delivers three key outputs:
- a load disconnect output to control devices and prevent deep discharge,
- a charge disconnect output to stop charging in over‑voltage or over‑temperature conditions, and
- a pre-alarm output to warn of imminent undervoltage via a relay, buzzer or LED.
It also supports remote on/off control, enabling external control of charge and load disconnect outputs.
The enclosure is compact (approximately 23.8 mm × 94.5 mm × 105.5 mm) and weighs just 120 g. It is made of ABS, coloured matt black with a blue sticker, and rated to IP20 protection. The BMS operates reliably in a wide temperature range from –20 °C to +50 °C, making it suitable for both on‑grid and off‑grid applications. It also meets relevant industry standards: safety to EN 60950, electromagnetic emission and immunity standards, and automotive compliance with EN 50498.
In use, if any cell drops too low, the BMS will trigger a pre-alarm and shut down inverter output. If any cell exceeds safe voltage or temperature, it will stop charging via VE.Bus and isolate the charger. This ensures long-term battery health, maximises system safety and gives system designers and installers confidence in large-scale NG Li‑ion systems.
Product Specifications
Product Specifications
System Compatibility & Sizing
- Battery Compatibility: Victron Lithium NG batteries (12.8 V, 25.6 V, 51.2 V).
- System Voltages: 12 V, 24 V, or 48 V systems.
- Battery Bank Sizing (12V & 24V): Supports up to 50 batteries (Max 192 kWh for 12V; 384 kWh for 24V).
- Battery Bank Sizing (48V): Supports up to 25 batteries (Max 128 kWh).
- Inverter Integration: Directly controls VE.Bus inverters or inverter/chargers in the event of cell alarms.
Protection & Control
- Cell Protection: Monitors individual cells via M8 circular connector cables and signals disconnects for safety.
- Load Disconnect Terminal: High/free floating, 1 A. Triggers in case of cell undervoltage.
- Charge Disconnect Terminal: High/free floating, 10 mA. Triggers in case of cell overvoltage or temperature alarms.
- Pre-alarm Terminal: Free floating/high. Provides an early warning before a load disconnect occurs.
- Auxiliary Output: 1 A.
- Auxiliary Input: 1 A.
- Remote On/Off Terminal: Yes; supports manual or system-driven toggling via physical terminal or the VictronConnect app.
Connectivity & Monitoring
- Bluetooth Smart: Built-in for monitoring, operation, and configuration via the VictronConnect app.
- Instant Readout: Essential battery data is displayed via Bluetooth without the need for pairing.
- Data Communication: Features VE.Bus communication for direct connection with inverter/chargers and GX devices (e.g., Cerbo GX).
- DVCC Control: Fully supports Distributed Voltage and Current Control (DVCC). It can control compatible inverter/chargers and solar chargers via a GX device without needing the physical disconnect terminals.
- Battery Monitoring: Integrated through the Lithium NG batteries, which feature internal shunts to send SoC, voltage, cell voltage, temperature, and balancer status to the BMS.
Physical Specifications
- Dimensions (h x w x d): 24 x 95 x 106 mm
- Unit Weight: 0.12 kg
- Protection Category: IP20
- Mounting: Compact form factor designed for easy integration into electrical cabinets.
System Design Recommendations: The VE.Bus BMS NG is specifically recommended for 12 V, 24 V, or 48 V systems that include Victron VE.Bus inverter/chargers and a GX device. It is the ideal choice for systems requiring advanced digital integration, DVCC capabilities, and centralized control of both AC and DC charging sources.
