| Technical Specification | Backup Box-BO Thinmaku | Backup Box-B1 |
| AC Output (On grid) | ||
| Grid connection | Single Phase | Three Phase |
| Rated voltage | 220 V/230 V | 380 V / 400 V |
| AC frequency | 50Hz/60Hz | |
| AC output voltage range | 198 V ~ 253 V | 342 V ~ 440 V |
| AC Output (Backup) | ||
| Load connection | Single Phase | Single Phase |
| Rated voltage | 220 V / 230 V | 220 V / 230 V |
| AC frequency | 50Hz/60Hz | |
| Maximum apparent power | 5,000 VA | 3,300 VA |
| Maximum output current | 22.7 A | 15.2 A |
| Switchover time | <3s | |
| AC Input (Inverter) | ||
| Rated voltage | 220 V/230 V | 380 V / 400 V |
| AC frequency | 50Hz/60Hz | |
| Compatible inverter | SUN2000-2/3/3.68/4/4.6/5/6KTL-L1 | SUN2000-3/4/5/6/8/10KTL-M1 |
| General Specification | ||
| Operating temperature range | -20 °C to +45 °C (-4 °F to 113 °F) | |
| Relative humidity range | O %RH ~ 100 %RH | |
| Dimensions (W*H*D) | 400 x 350 x 130 mm (15.8 x 13.8 x 5.1 inch) | |
| Weight | 11 kg | |
| Degree of protection | IP 65 | |
