Product Description
500V High Voltage DC Distribution Box for Residential Energy Storage
High‑Voltage Battery Enclosure
CAN/RS485/Daisy‑Chain
4.3/7″ Display
UL/CE Design
Key Features
- DC circuit breaker with trip function – reliable overcurrent & short circuit protection
- Rich communication interfaces – 3x CAN, 2x RS485, 2x daisy‑chain ports
- Advanced fault diagnostics – fuse blown detection, relay weld detection, relay open circuit detection
- 4.3 or 7 inch touch display – intuitive visualization of operation, alarms, and fault status
- Controllable DC24V output – auxiliary power for external devices
- Temperature monitoring at key contact points – ensures reliable connections
- Redundant safety strategy – measures battery total voltage and rear-end total voltage for enhanced safety
- Black start & off‑grid mode – supports standalone operation without grid connection
- Designed to meet UL / CE standards – ready for global certification
Built for High‑Voltage Energy Storage
The TB-PD1500 series high‑voltage enclosure is the central power distribution and protection unit for battery energy storage systems (ESS). It houses DC breakers, fuses, contactors, and control electronics, providing a safe and intelligent interface between battery stacks and inverters.
Applications: Utility‑scale storage, C&I ESS, high‑voltage residential storage (up to 1500V), and off‑grid solar + storage systems.
Voltage options: 500V, 1000V, 1500V with custom configurations available.
Technical Specifications
| Parameter | 500V Model | 1000V Model | 1500V Model |
|---|---|---|---|
| Model Variant | 500V100A / 500V250A | 1000V250A | 1500V250A |
| System Voltage Range | <500V | <1000V | <1500V |
| Rated Current | 100A or 250A | 250A | 250A |
| Communication Interfaces | 3x CAN, 2x RS485, 2x Daisy‑Chain | 3x CAN, 2x RS485, 2x Daisy‑Chain | 3x CAN, 2x RS485, 2x Daisy‑Chain |
| Dimensions (L×W×H) | 720 × 569 × 255 mm | 580 × 440 × 170 mm | 510 × 415 × 210 mm |
| Protection Class | IP20 (indoor installation) | ||
Advanced Safety & Control
Fault Diagnostics
Fuse blown, relay weld/open detection – real‑time monitoring.
Redundant Voltage Sensing
Battery total voltage + rear‑end voltage for cross‑check.
Contact Temperature Monitoring
Key contact points monitored to prevent overheating.
Black Start & Off‑Grid
Autonomous operation without grid, supports island mode.
HMI & Auxiliary Features
The TB-PD1500 enclosure can be equipped with a 4.3‑inch or 7‑inch color touch display, showing real‑time system parameters (voltage, current, temperature, status), active alarms, and fault records. The controllable DC24V output (enable/disable via BMS command) provides power for external fans, lighting, or auxiliary contactors.
All communication ports are isolated and compatible with standard BMS protocols (CAN 2.0B, Modbus RTU over RS485, daisy‑chain SPI).
