| MODEL | OT1K | OT1KS | OT2K | OT2KS | OT3K | OT3KS | ||
| Rated capacity | 1KVA/800W | 2KVA/1600W | 3KVA/2400W | |||||
| Input | Voltage | 115 - 300Vac | ||||||
| Frequency | 40-60Hz / 50-70Hz | |||||||
| Power factor | 0.99 | |||||||
| Output | Voltage | 220/230Vac(1±2%) | ||||||
| Frequency | Synchronize with utility power(utility mode); 50 / 60Hz ± 0.2Hz(battery mode) | |||||||
| On-load factor | 0.8 | |||||||
| Overload rating | 125% overload,1min | |||||||
| Battery | Type | Valve-control lead acid maintenance-free battery | ||||||
| Back up time | more than 11min (half load) | External | more than 11min (half load) | External | more than 11min (half load) | External | ||
| Rated voltage | 36V | 72V | 96V | |||||
| Transfer time | 0 | |||||||
| Operating environment | Humidity: 20%-90%, Temperature:0oC-40oC | |||||||
| Size (WxDxH)mm | 350 x 144 x 229 | 424 x 190 x 328 | 424 x 190 x 328 | |||||
| Net Weight(kg) | 11.5 | 5.7 | 22.2 | 10 | 26.3 | 10 | ||