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Description
The Deye BOS-B-PDU-2-A is the central high-voltage cluster control box and power management unit designed for the Deye BOS-B series rack-mounted high-voltage battery storage systems. Positioned at the top of 19-inch standard rack enclosures, it serves as the master Battery Management System (BMS) and power distribution hub for series-connected battery modules (BOS-B51100 / BOS-GM5.1). Equipped with comprehensive hardware protection circuit breakers, pre-charge functionality, and CAN/RS485 communication protocols, it ensures safe, synchronized, and highly efficient operation when paired with Deye three-phase high-voltage hybrid inverters.
Key Features & Benefits
Master High-Voltage BMS Protection: Constantly monitors total cluster voltage, charge/discharge currents, insulation status, and individual cell temperature metrics.
Integrated Safety & Switching: Features built-in high-voltage DC circuit breakers, fuses, and soft-start pre-charging circuits to prevent power surges and short circuits.
19-Inch Rack-Mountable Design: Standard 3U rack-mount form factor allows seamless slide-in installation into official Deye BOS-B battery cabinets.
Multi-Module Cluster Control: Manages 3 to 12 stacked battery modules per cluster (series voltages from ~150V to 600V+) and supports multi-cluster parallel configurations.
Smart Monitoring & Updates: Integrated CAN2.0 and RS485 communication ports enable real-time cloud data logging, local monitoring, and USB firmware upgrades.
Wide Operating Range: Engineered for stable performance across demanding commercial and residential energy storage environments.
Technical Specifications
| Parameter | Specification |
| Product Type | Master High-Voltage Control Box / PDU |
| Compatible Battery Modules | Deye BOS-B Series (e.g., BOS-B51100 / BOS-GM5.1) |
| Operating Voltage Range | 120 V – 750 V DC |
| Nominal Charge/Discharge Current | 100 A (Peak: 125 A) |
| BMS Functions | Over-voltage, Under-voltage, Over-current, Short-circuit & Thermal Protection |
| Cluster Capacity Support | Controls 3 to 12 battery modules in series per rack |
| Form Factor / Dimensions | 19-inch Rack Mount (3U) / ~440 Ă— 570 Ă— 150 mm |
| Weight | ~15.5 kg |
| IP Protection Rating | IP20 (Indoor rack installation) |
| Communication Protocols | CAN2.0 / RS485 / USB / Ethernet |
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