| lnput | Capacity(VA) | 500M | 500 | 1000 | 1500 | 
| Power(W) | 210W | 300W | 600W | 900W | 
| voltage range | | 170VAC ~260VAC | 165VAC ~280VAC |  | 50 or 60Hz± 10% | 50 or 60Hz± 10% | 
 | 
| Frequency | 
| lnverter output | Waveform | Square wave | 
| Frequency | 50 or 60Hz± 0.5 | 
| Automatic voltage adjustment |  | 
| Response time for power off | 10ms | 
| Prot ection
 | Surge protection | 320J (2ms) | 
| Fitration | Attenuate 10dB at 0.15MHZ Attenuate 50dB at 30MHZ | 
| Overload | When load exceeds 110% rated load, UPS closes automatically after 30s; besides, when load exceeds 130% rated load, UPS also closes automatically after 3s.
 | 
| Battery protection | When voltage of battery is lower than 10V, it stops inversing. | 
| Short-circuit | UPS cuts off output automatically (Change the fuse in the machine if necessary) | 
| Alarm sound | Power supply from battery | When input voltage is off, it sends slow alarm sound. | 
| Low electric potential of battery | When the battery is used up, it sends fast alarm sound. | 
| Battery used up | alarm sound.Send continuous alarm sound | 
| Battery | Capacity | 1x12V, 4AH | 1x12V, 7AH | 2x12V, 7AH | 2x12V, 10AH | 
| Charge time | Recharge time: 8h for 90% full electric potential | 
| Battery protection | Automatic inspection and discharge protection, fault indication for battery | 
| Reserve time | 4~10min (Determined by load) | 
| NW(kg) | 4kg | 7kg | 15.6kg | 20kg | 
| Outime size(mm) | 255x 95x135 | 320x 110 x205 | 360 x150x 220 | 360x 150x 220 |