3000VA UPS Backup Power Supply, Single Phase 120V/240V

SKU: PH-UPS-3K

$1,035.72

● 3000VA online ups backup power supply, pure sine wave output, 120V/220VAC input ● Equipped with an LCD screen to display input voltage, output voltage, and battery capacity in real time ● Overload, short circuit, and overvoltage protection functions ensure equipment safety ● Features voltage stabilization and backup power functions to ensure continuous operation of the load ● Low-noise design suitable for stable power supply to POS systems, laboratory instruments, home offices, servers, and network equipment

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Overview
Specs
Application
FAQ
Reviews

Overview

The 3000 VA/2400 W ups power supply is an online interactive backup power supply with pure sine wave output and a low-noise design. It features 120V/240V AC input and output, and RS-232/USB interfaces for easy connection. The ups power backup has an automatic voltage regulation function, providing power protection for loads such as servers, switches, routers, and printing equipment. It is widely used in medical equipment, office equipment, industrial electronic products, and lighting systems to ensure stable AC power supply. When the mains power fails, the ups uninterruptible power supply can quickly switch modes to ensure continuous operation of the equipment.

Feature

UPS battery backup power supply with capacity 3000 VA/2400 W, single-phase pure sine wave
Noise level below 50 dB, low-noise design suitable for small computer rooms and laboratories
Features overload protection, short-circuit protection, overvoltage protection, and undervoltage protection
AC/battery mode switching ensures stable operation of servers, monitoring systems, network equipment, and other loads during power outages
Automatic voltage regulation function provides continuous and stable power support for routers, switches, printers, POS systems, access control systems, precision laboratory instruments, and home network systems

Details

AC input
Input circuit breaker
USB communication port
RS-232 communication port
SNMP intelligent slot (option)
External battery connection (only available for L model)
Output receptacles

Specs

Model	BE-3K
Phase	Single phase with ground
Capacity	3000 VA/2400 W
Input
Nominal Voitage	100/110/115/120/127VAC or 200/208/220/230/240VAC
Input Voltage Range	55-150VAC or 110-300 VAC (Based on load at 50%)
Input Voltage Range	85-140VAC or 160-280VAC (Based on load at 100%)
Frequency Range	40Hz-70Hz
Power Factor	≥0.99 @ Nominall voltage (100% load)
Output
Output Voltage	100/110/115/120/127VAC or 200/208/220/230/240VAC
Voltage Regulation	±1%
Frequency Range (Synchronized Range)	47-53Hz or 57-63Hz
Frequency Range (Batt. Mode)	50Hz±0.25Hz or 60Hz±0.3Hz
Current Crest Ratio	3:1
Harmonic Distortion	≤3% THD (Linear Load)
Harmonic Distortion	≤6% THD (Non-linear Load)
AC Mode to Battery Mode Transfer Time	Zero
Inverter to Bypass Transfer Time	4 ms (Typical)
Waveform (Batt. Mode)	Pure Sine wave
Efficiency
AC Mode	90%
Battery Mode	88%
Battery Long-run Model
Battery Type	Depending on the capacity of external batteries
Numbers	6/8
Charging Voltage	82.1VDC±1%/ 109.4VDC±1%
Charging Current (max.)	1A/2A/4A/6A (Adjustable)
LCD Indicators	Load level, Battery level, AC mode, Battery mode, Bypass mode, and Fault indicators
Alarm
Battery Mode	Sounding every 4 seconds
Low Battery	Sounding every second
Overload	Sounding twice every second
Fault	Continuously sounding
Physical Long-run Model
Dimension, DxWxH (mm)	397x145x220
Net Weight (kgs)	7.4
Environment
Humidity	20-90% RH @ 0-40°C (Non-condensing)
Noise Level	Less than 50dB @ 1 Meter
Management
Smart RS-232/USB	Supports Windows® 2000/2003/XP/Vista/2008, Windows® 7/8/10, Linux and MAC
Optional SNMP	Power management from SNMP manager and web browser

Note:

1. The UPS input/output configuration is 1-phase (L, N, G) like Europe standard, NOT support the split phase (L1, L2 + G) like USA standard.

2. Batteries that work with this UPS are not included, customers need to match lead-acid battery packs on their own, consult us for battery specifications.

3. If you need other output voltage range, please contact us.

Application

Office Equipment

Computer Network

Intelligent Home

Lighting System

FAQ

Q1: What is the working principle of an ups uninterruptible power supply (UPS)?

A line-interactive UPS battery backup power supply regulates the input voltage by stepping up or down using an automatic voltage regulator (AVR) when the mains power is normal. When the mains power fails or the voltage exceeds the set range, the ups backup system switches to battery power within milliseconds. An inverter converts the battery's DC power into a stable AC output, ensuring continuous operation of the load equipment. Its structure combines voltage stabilization and backup power functions, offering high efficiency and suitability for environments with frequent power fluctuations.

Q2: What are the main functions of an ups power supply?

The core function of a line-interactive battery backup power supply is to prevent equipment shutdown and data loss caused by sudden power outages. It also mitigates power problems such as voltage fluctuations, undervoltage, and overvoltage, providing a relatively stable power environment for equipment. Uninterrupted power supply for home not only provides emergency power support during power outages but also extends equipment lifespan and reduces the risk of hardware damage. UPS uninterrupted power supply is an important power backup device for office systems, network equipment, and small servers.

Q3: How to maintain and service an industrial uninterruptible power supply?

To ensure long-term stable operation of the 240v ups power supply, battery status and load conditions should be checked regularly. Good ventilation should be maintained, and high-temperature and humid environments should be avoided. It is recommended to perform a battery self-test or power-off test every 3-6 months to confirm the backup power supply function is normal. At the same time, avoid prolonged full-load operation, clean dust regularly, and replace batteries promptly after 3-5 years based on performance conditions to ensure the safety and reliability of the ups backup system.

1 review(s)

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From: Christopher | Date: 6/30/2026 6:01 AM

Finally, No More Panic When the Power Flickers

We get brownouts and little blips all the time in my neighborhood, and before this UPS, I was constantly holding my breath waiting for everything to crash. Now my whole homelab and network gear just keep humming along like nothing happened. The LCD screen is actually useful – tells me exactly what's going on at a glance without any guesswork. What I really like is how quiet it is. I was expecting some loud fan noise, but it sits under my desk and I barely notice it. Setup took maybe ten minutes – plug it in, connect my gear, and forget about it. It's got enough juice to keep my servers, switches, and router running long enough to safely shut everything down if the power's out for a while. And the automatic voltage regulation means my sensitive electronics aren't getting fried by those annoying voltage dips. For anyone running a homelab, small office, or just tired of losing work during storms, this thing is worth every penny. Solid buy, no regrets.