Uninterruptible Power Supply A-LAN AP-BK850 850 VA (480 W) Line-Interactive, AVR, 2x Type F outlets, USB, RS-232

A-LAN AP-BK850 is a line-interactive uninterruptible power supply (UPS) providing 850 VA (480 W) output with Automatic Voltage Regulation (AVR). It delivers a sine waveform output with surge protection, battery discharge protection and a typical response time of 6 ms. The UPS includes two Type F AC outlets, a USB Type-B (USB 2.0) port, an RS-232 port, LED status indicators and a USB cable in the package. Operating input range is 140–300 V with output voltage regulation ±10% and a recommended operating temperature range of 0–40 °C.

Advantages

The AP-BK850 offers automatic voltage regulation to stabilise input voltage, line-interactive topology for efficient power conditioning, and sine-wave output suitable for sensitive electronics. Compact dimensions and a moderate noise level make it appropriate for home and small office environments. Integrated surge protection and battery discharge protection increase equipment safety during power disturbances.

Suitable for

• Desktop PCs and workstations
• Home office and small business networking equipment (routers, switches)
• Monitors, external drives and other peripherals
• Point-of-sale terminals and small servers with low power draw

Key specifications

• UPS topology: Line-Interactive
• Rated capacity: 850 VA / 480 W
• Input voltage range: 140–300 V
• Output voltage range: 220–240 V (operation min 220 V, max 240 V); regulation ±10%
• Input/output frequency: 50/60 Hz
• Response time: 6 ms
• Waveform: Sine
• Surge protection: Yes
• Battery: 12 V, 9 Ah
• Noise level: 40 dB
• Operating temperature: 0–40 °C
• Relative humidity (operating): 0–90%
• Physical dimensions (H×W×D): 142 × 101 × 297 mm
• Weight: 4.9 kg
• AC outlets: 2 × Type F
• Ports: USB Type-B (USB 2.0), RS-232

How to use

Place the UPS on a stable, level surface in a well-ventilated area. Connect the UPS to mains power and allow the battery to charge according to the manufacturer's initial charge recommendations before relying on battery backup. Plug equipment into the Type F outlets and connect monitoring equipment via the USB Type-B or RS-232 port if required. The unit will provide automatic voltage regulation during normal operation and switch to battery power in case of mains failure with a typical transfer time of 6 ms.

Usage recommendations

For reliable backup, periodically test the UPS and replace the battery when capacity falls below manufacturer-specified levels. Avoid placing the unit in locations with temperatures outside 0–40 °C or high humidity. Do not block ventilation openings and connect only equipment whose combined power draw does not exceed 480 W.