- 675 Sycamore Drive, Suite 150 Milpitas, CA 95035
BEC1K0135G is a bidirectional DCDC power conversion module specifically designed for energy storage systems, DC microgrids and second-life battery cascade utilization. It enables efficient energy exchange between the battery and the DC bus through a built-in high-frequency isolation transformer. Using third-generation SiC semiconductor devices, it delivers high efficiency, high power density, strong scalability, ultra-low electromagnetic emissions and interference, and enhanced reliability. It stands as one of the world’s leading power conversion modules.
| Technical Parameters | ||
| Operating Environment | Operating temperature | -40°C~+75°C, derating required above 55°C |
| Transportation/Storage temperature | -40°C~+75°C | |
| Relative humidity | ≤95%RH, non-condensing | |
| Altitude | 2000m | |
| Atmospheric pressure | 79kPa~106kPa | |
| Cooling method | Forced air cooling | |
| Protection rating | IP20 | |
| Battery Side | Max power | 40kW |
| Voltage range | 150Vdc~1000Vdc | |
| Constant power voltage range | 300Vdc~1000Vdc | |
| Max current | 133.3A | |
| Voltage regulation accuracy | ≤±0.5% | |
| Current regulation accuracy | ≤±1% | |
| Current sharing | ≤±5% | |
| Bus Side | Max power | 40kW |
| Voltage range | 300Vdc~950Vdc | |
| Constant power voltage range | 600Vdc~950Vdc | |
| Max current | 66.7A | |
| Voltage regulation accuracy | ≤±0.5% | |
| Current regulation accuracy | ≤±1% | |
| Current sharing | ≤±5% | |
| Performance | Peak efficiency | ≥98.5% |
| Full load efficiency | ≥98.2% | |
| Standby power | 20W | |
| Super standby power | <1W | |
| Noise | Standard mode: ≤80dB; de-noise mode: ≤70dB; silent mode: ≤60dB | |
| Control | Communication | CAN bus, max 32 power modules in parallel |
| Operating mode | DC bus voltage regulation mode | |
| Indicator light | Green LED: normal operation; Yellow LED: alarm; Red LED: failure | |
| Address indication | Automatic address identification, panel dial switch for group setting | |
| ESTOP | 12V dry-contact relay trigger, output voltage shall drop from 1000Vdc to below 60Vdc in 300ms | |
| Alarm and Protection | Input overvoltage/undervoltage protection | Automatic shutdown, enters standby mode when the voltage returns to normal and requires a startup command from the monitoring unit to restore output |
| Output overvoltage protection | Automatic shutdown, manual restart when the voltage returns to normal | |
| Overcurrent/short circuit protection | Automatic shutdown, enters standby mode when the overcurrent/short circuit is cleared and requires a startup command from the monitoring unit to restore output | |
| Overtemperature protection | Automatic shutdown, enters standby mode when the temperature returns to normal and requires a startup command from the monitoring unit to restore output | |
| Reliability and Safety | Certification | TUV CE, cTUVus |
| EMC/EMI | EN IEC 61851-21-2:2021, EN 61000-1:2019/-2:2019/-3:2021/-4:2019 | |
| Safety | EN IEC 62477-1:2023, EN IEC 61851-1:2019, EN IEC 61851-23:2023, UL 2202:2022 | |
| MTBF | >500,000h | |
| Mechanical Parameters | Dimensions (W*D*H) | 300mm*395mm*84mm |
| Weight | ≤16kg | |
| *The product is continuously evolving. Please refer to the latest datasheet for specifications. | ||
For any queries, technical support, or specific product information, our dedicated team stands ready to assist you.
