General features
- Technology: Single-phase input/output, line-interactive UPS system.
- Super-fast charging: The battery recharges to 90% capacity within 2–4 hours.
- AVR: True 3-step automatic voltage regulation with two boosts and one buck to stabilize output voltage.
- Microprocessor control: Guarantees high reliability.
- Waveform: Simulated sine wave during battery mode; true sine wave during AC mode.
- Cold start function: Allows the UPS to power on without an AC power source.
- Audible and visual alarms: Alerts you to issues like battery mode, low battery, overload, and fault.Â
Input specifications
- Nominal voltage: 230VAC.
- Voltage range: 140–300VAC ±5% for 230VAC mode. Some models feature single and double boost capabilities, offering ranges from 162–290VAC (single) and 140–300VAC (double).
- Frequency: 50Hz or 60Hz (auto-sensing).
- Phase: Single phase with ground.Â
Output specifications
- Capacity: 650VA / 390W.
- Voltage range (battery mode): 220–240VAC ±10%.
- Frequency (battery mode): 50Hz ±1% (battery mode); 60Hz ±1% (battery mode).
- Transfer time (typical): 2–6ms.Â
Battery specifications
- Type and quantity: 1 x 12V/8.2AH sealed lead-acid battery.
- Backup time: 8–30 minutes, depending on the load.
- Recharge time: 2–4 hours to recover to 90% capacity.
- Protection: Features intelligent battery management to prevent overcharging and deep discharging, which maximizes battery life and performance.Â
Protection and monitoring
- Short-circuit protection: Yes, in both line and battery modes.
- Surge protection: Yes, to protect connected equipment from spikes and surges.
- Overload protection:
- Line mode: If the load is 100%–120%, the UPS will change to fault mode in five minutes. If the load is over 120%, it will switch to fault mode immediately.
- Battery mode: If the load is 100%–120%, the UPS will shut down in five seconds. If the load is over 120%, it will shut down immediately.
- Over-temperature protection: Automatic shutdown if internal temperatures become unacceptably high.Â
Physical and interface
- Dimensions (D x W x H): 279 x 101 x 142 mm.
- Weight: 4.2 kg.
- Noise level: <40dB.
- Indicators: LED display shows the current mode (AC, battery, overload, or fault).
- Optional interface (for SFCU model): USB communication port for monitoring software compatible with Windows, Linux, and Mac.

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