CBS5000-BCU is the central control unit (Battery Control Unit) designed to manage high-voltage battery modules CBS5000-BMU. It is responsible for monitoring the operation of the entire battery stack, system safety, and communication with Sofar hybrid inverters.

The BCU allows the creation of flexible energy storage configurations – from several modules in a single cabinet to large-scale systems with capacities reaching hundreds of kWh through parallel cabinet connection. The unit operates within a voltage range of 600–1000 V DC, ensuring high system efficiency and compatibility with industrial Sofar inverters (e.g. HYD series).

Integrated protection functions, active energy balancing between modules, and automatic configuration detection at startup (“one-button commissioning”) significantly simplify system deployment. The BCU is also equipped with a built-in heater, enabling safe battery charging at low temperatures.

The IP66 protection rating and air cooling ensure stable and long-term operation in industrial environments, even under increased environmental and operational requirements.

Key product features:

• Control unit for HV Sofar CBS5000 battery systems
• Operating voltage range 600–1000 V DC
• Support for multiple BMU modules and multi-cabinet configurations
• Active energy management and module balancing
• One-button commissioning – fast system start-up
• Built-in heater for low-temperature operation
• IP66 protection class – high environmental resistance

 WARNING! Dedicated battery module  --> Battery Module CBS5000-BMU 5.12 kWh HV Sofar

Sofar CBS5000 energy storage system combines the CBS5000-BMU battery module with a capacity of 5.12 kWh and the CBS5000-BCU control unit, creating a scalable high-voltage energy storage solution for commercial and industrial applications. The system is based on safe LiFePO4 (lithium iron phosphate) technology, ensuring long service life, high efficiency, and stable operation over a wide temperature range.

The built-in optimizer and active energy equalization between modules ensure better utilization of the entire system capacity. The integrated heater enables safe charging at low temperatures, while the IP66 protection rating and intelligent air cooling increase reliability and resistance to environmental conditions. Communication via CAN allows seamless integration with the latest generation Sofar hybrid inverters, including the HYD series designed for commercial use.

The CBS5000 solution is designed as a complete, scalable energy storage platform – ideal for cooperation with PV installations in industrial halls, service facilities, and C&I (Commercial & Industrial) projects, where effective energy management, peak shaving, price arbitrage, or increased self-consumption of renewable energy is required.

Key product features:

• Modularity and scalability – a single CBS5000-BMU 5.12 kWh module, expandable to multiple cabinets with total capacity of approx. 200 kWh for larger installations
• High system voltage – the CBS5000-BCU operates within 600–1000 V DC, enabling high overall efficiency and reduced transmission losses
• Safe LiFePO4 chemistry – stable battery technology ensuring long lifespan and high operational safety
• Environmental resistance IP66 – both BMU and BCU offer high ingress protection and operating range from -20°C to +50°C, with a built-in heater in the BCU for low-temperature charging
• Fast and easy installation – integrated stack design without manual cabling between modules, automatic configuration recognition via “one-button” function in the BCU
• Advanced energy management – active module balancing, built-in optimizer, CAN communication, and readiness for cooperation with industrial Sofar inverters (e.g. HYD series)