DEYE BOS-A-PDU-2 contorl box
Item number: C00609
Guarantee:
The DEYE BOS-A-PDU-2 is a central component of Deye's BOS-A modular energy storage system. The PDU (Power Distribution Unit) is responsible for the safe control, communication, and power distribution of high-voltage battery packs.
Designed specifically for commercial and industrial energy storage systems (C&I ESS) where reliability, accurate battery monitoring, and safety features are key.
Main technical data
Operating voltage: 200–1000 V DC
Max. charging/discharging current: 160 A
Auxiliary power supply: 12 ± 2 V / 4.15 A
Operating temperature: -20°C - +65°C
Protection level: IP20
Dimensions (W × H × D): 632 × 572 × 142.2 mm
Weight: 21 kg
Cooling type: Natural ventilation
Installation: Rack mountable (compatible with BOS-A system)
Connections and interfaces
The BOS-A-PDU-2 module provides multiple communication and control connectors that enable integrated operation with inverters, batteries, and communication modules:
Isolating Switch: Manual switch for isolating the battery rack from external systems
USB Port: For BMS firmware updates and data backup
COMM1 / COMM2: Communication between battery and inverter, with power supply
PCS COM: Communication with the inverter (PCS) unit for transmitting battery data
IN COM / OUT COM: Communication chaining between multiple PDU units
Bluetooth: Local data communication with mobile application (BMS monitoring)
Ethernet (reserve): Reserved for future network data communication
Display Screen: Battery status (SOC, voltage, error codes) display
START Internal: 12VDC circuit starter switch
HV Light Indicator (yellow): Indicates the presence of high voltage
ALRM Light Indicator (red): Indicates battery failure or system malfunction
PCS1+/PCS2+: First and second inverter positive connection point (orange)
PCS1-/PCS2-: First and second inverter negative connection point (black)
B+ / B- : Battery connection – positive (red), negative (black) terminal
Functional characteristics
- Automatic battery monitoring: the PDU communicates with the BMS, balances cell voltage, and optimizes the charging/discharging process.
- Multi-layer protection: surge, overcurrent, short circuit, temperature, and polarity protection.
- Integrated diagnostics: real-time status reporting, error indication via LED and display.
- Dual PCS interface: supports simultaneous connection of two inverters to DC.
- Bluetooth support: quick system checks and error monitoring via mobile app.
- Modular system: can be connected to 7–21 BOS-A batteries in a series group.
- Rack integration: compatible with BOS-A Rack 11 / Rack 14 / Rack 16 cabinets.
Security features
- High voltage indicator LED (HV)
- System error LED (ALRM)
- Manual disconnect switch
- IP20 protection in closed rack design
- CE / IEC 62619 and UN38.3 compliance
Field of application
- Small and medium-sized commercial solar energy storage systems (C&I)
- Deye SUN-50K / 80K / 100K hybrid inverters as battery control units
- Modular BOS-A for energy storage systems
- For stand-alone and hybrid systems – with integrated communication and protection
Key benefits
- High voltage (up to 1000V) battery compatibility
- Dual PCS communication – support for two inverters from one module
- Smart BMS integration and automatic data transfer
- Safe, IP20, rack-compatible design
- Modular, scalable energy storage architecture
