Secure UPS Uninterruptible Power Supply UPS-650VA

Specifications:

Input Voltage: 220VAC
Frequency: 50hz – 60hz
Output Voltage: 220VAC
Capacity VA/Wattage: 650VA/455Watts
Transfer Time: ≤10ms including direction time
Wave Form: Sine wave under main supply, square wave under battery operation
Protection: Overload: As load over 130%, UPS is protected in 3seconds.
Load input: Fuse for overload and short circuit protection.
Short Circuit: UPS cut off immediately.
Battery: Sealed lead acid maintenance-free.
Protection: Auto-inspection, discharge protection and battery fault caution.
Battery: Normally, battery is charge once in three months, it is less than 6hours charging a time.
Audible Alarm: Battery Mode.
Sufficient battery capacity, buzzer rings every 4seconds, red light flash.
Insufficient battery capacity, buzzer rings every 1second, red light flashing.
Battery Low Voltage or Overload/Short Circuit:
Buzzer keeps ringing, red light on.