KSTAR UA300 Line-Interactive UPS 3000VA / 1800W With AVR LCD Display, Fast Charging, Auto Restart, Simulated Sinewave Generator Compatible, Backup Power, Four Output Sockets , 12V / 9Ah x4 Batteries

Expert Features

• 3000VA / 1800W High-Capacity Power Output: The UA300 is built to handle heavy-duty loads, delivering stable backup power for high-end PCs, workstations, servers, networking equipment, and critical electronics.
• Line-Interactive UPS Architecture: Actively regulates unstable utility power while minimizing battery usage, ensuring efficient operation and extended battery life.
• Automatic Voltage Regulation (AVR Boost & Buck): Corrects over-voltage and under-voltage conditions without switching to battery, protecting connected equipment from power fluctuations.
• Simulated Sinewave Output: Supplies simulated sinewave power during battery mode, providing reliable compatibility with computers, office devices, and network hardware.
• Ultra-Fast Transfer Time: Seamlessly switches to battery backup in as little as 2–6 ms (10 ms max), keeping systems running without interruption.
• Cold Start Function: Allows the UPS to power on directly from battery without AC input, ensuring availability during complete power outages.
• Four Output Sockets: Provides power to multiple devices simultaneously, making the UA300 suitable for full workstation or small server setups.
• High-Capacity Battery Configuration: Equipped with four 12V / 9Ah batteries to deliver extended runtime and consistent backup performance.
• Fast Charging Capability: Recharges batteries up to 90% capacity within 6–8 hours, reducing downtime between power events.
• Auto Charging At Off Mode: Continues charging the internal batteries even when the UPS is switched off but connected to AC power.
• Auto Restart On AC Recovery: Automatically restores output power once utility power returns, eliminating the need for manual restart.
• Built-In Self-Diagnostic Function: Continuously monitors system health to ensure reliable operation and early fault detection.
• Comprehensive Protection System: Integrated overload and overcharge protection safeguards both the UPS and connected devices.
• LCD Status Display: Provides real-time visibility of AC mode, battery mode, load level, battery level, input voltage, output voltage, overload status, faults, and battery low warnings.
• Audible Alarm Notifications: Distinct alarm patterns instantly communicate battery mode, low battery, overload, battery replacement, or fault conditions.
• Modem / LAN Surge Protection: Shields communication and network lines from power surges and voltage spikes.
• Generator Compatible (Optional): Designed to operate reliably with generator power sources for extended backup scenarios.

Expert Specs