3000W Pure Sine Wave Inverter Charger 12V/24V

SKU: PH-PI-LW3000

$967.46

● This affordable pure sine wave inverter charger features a continuous power output of 3kW and a peak power of 9kW. ● Converts DC to AC, offering 110V/120V/220V/230V/240V AC outputs, optional 120V/240V phase output. ● Utilizing a low-frequency transformer, it incorporates UPS functionality, making it suitable for charging sensitive loads. ● Operating within a 0-40℃ temperature range, it features short-circuit and overload protection. ● Applied in solar power generation, wind power generation, and in residential, vehicle, and marine applications requiring a stable mains power supply.

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Overview
Specs
Application
FAQ
Reviews

Overview

This 3kW DC-to-AC inverter charger employs a low-frequency transformer design and supports UPS uninterruptible power supply, stably converting 12V/24V/48V DC battery packs into pure sine wave AC power. The AC output voltage is selectable at 110V, 120V, 220V, 230V, and 240V, with support for 120V/240V phase output to meet various power requirements. The 3000w inverter charger boasts high energy efficiency of over 96% in AC mode and over 85% in battery mode, making it suitable for powering and charging devices such as refrigerators, microwave ovens, televisions, air conditioners, computers, LED lights, and fans. It is widely used in residential, vehicle, marine, navigation system, mobile power operation, and telecommunications equipment scenarios.

Feature

Continuous power 3000W, peak power 9000W
Equipped with an LCD screen, remote control function optional
Features battery mode and AC power mode
Suitable for split-phase systems, voltage 120V/240V
Overload protection, over-temperature protection, overcharge protection, and low battery protection
Pure sine wave output, suitable for inductive and precision loads such as generators, medical equipment, and communication equipment
Used for off-grid systems, providing stable AC power

Details

Pure Sine Wave Output: Provides stable power
High-Definition LCD Screen: Displays operating parameters in real time
Cooling Fan: Excellent heat dissipation performance
Multiple Interfaces: Supports various input and output interfaces
Remote Control: Facilitates remote monitoring and operation of equipment
Multiple Safety Protections: Comprehensive protection for operational safety

Inverter/Charger Working Principle

1kw inverter charger working principle

Inverter Split-Phase Output Terminal Description

Inverter charger split phase output terminal description

Specs

Power	3000w
AC Input
Phase	Single Phase
Waveform	Pure Sine Wave
Voltage*	110V/120VAC or 220V/230V/240VAC
Acceptable Voltage	95-126VAC or 194-253VAC±4%
Low Line Disconnect	85VAC±4% or 184VAC±4%
Low Line Re-connect	95VAC±4% or 194VAC±4%
High Line Disconnect	136VAC±4% or 263VAC±4%
High Line Re-connect	126VAC±4% or 253VAC±4%
Frequency	50Hz: 41-54Hz or 60Hz: 51-64Hz (Autodetection)
AC Output
Phase & Waveform	Single Phase & Pure Sine Wave (bypass mode sync to input)
Voltage*	110V/120VAC or 220V/230V/240VAC
	120V/240VAC split phase output Also Available: L1+L2=240V, L1+N=120V,L2+N=120V
Voltage Regulation	±10%rms (bypass mode sync to input)
Frequency	50Hz±0.3Hz or 60Hz±0.3Hz (bypass mode sync to input)
Peak Power	3 times of rating power (9000W)
Short Circuit Protection	Yes, shutdown after 10ms
Power Factor	0.9-1.0
Outlet	Universal socket + wiring terminal block
DC Input
Battery Voltage*	12V DC	24V DC	48V DC
Minimum Start Voltage	10V DC	20V DC	40V DC
Low Battery Alarm	10.5±0.3V DC	21±0.6V DC	42±1.2V DC
Low DC Input Shut-down	10±0.3V DC	20±0.6V DC	40±1.2V DC
High DC Voltage Alarm & Fault	16±0.3V DC	32±0.6V DC	64±1.2V DC
High DC Input Recovery	15.5±0.3V DC	31±0.6V DC	62±1.2V DC
Max Charger Current	20A/35A/50A/75A/90A (According to the inverter model)
Effciency
Line Mode	>96%
Battery Mode	>85%
General
Power Saver	Load ≤ 25W (Enabled on "P/S auto" setting of Remote control)
Audible Alarm	Sounding when the heat sink's temperature is over 105°C and shutdown after 30 seconds.
Over Load Protection	110%
	Load> 150%, beeps 0.5s every 1s. and Fault after 20s.
Protections	Low battery, over charging, over temperature, over load
Remote Control*	Wired remote control (5m) for power on/off
Indicators	LCD display
Operating Environment	0-40°C, 0-90%C RH (non-condensing)
Protection Grade	IP20
Audible Noise	<60dB
Net Weight	25kg
Dimension (LxWxH)	480x225x190mm

•Catalogue

LW Series Inverter Charger Catalog.pdf

•User Manual

LW Series Inverter Charger User Manual (Lite Version).pdf

LW Series Inverter Charger User Manual (Full Version).pdf

Application

New Energy Power

Small Electrical Appliances

Outdoor Travel

Emergency Power Supply

FAQ

Q1: What is a pure sine wave inverter charger?

A pure sine wave inverter charger converts the battery's DC power into AC power with a waveform highly consistent with the mains voltage. Battery charger and inverter also integrates battery charging functionality, providing a stable and safe power source for various electrical devices.

Q2: What is the three-stage charging of an inverter charger?

Three-stage charging refers to the inverter charger's intelligent charging process using three stages: constant current, constant voltage, and float charging. This effectively improves charging efficiency and extends battery life.

Q3: Why are pure sine wave inverter chargers so important?

Solar charger and inverters provide stable output power with low harmonics, preventing interference or damage to sensitive electronic equipment. Power inverter chargers are particularly suitable for devices with high power quality requirements, such as refrigerators, televisions, and computers.

1 review(s)

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From: Everett | Date: 7/15/2026 9:53 AM

Reliable inverter for my off-grid cabin

I installed this 3000W pure sine wave inverter charger in my off-grid cabin, and it has handled my tools and water pump without any issues. The 9kW peak power provides plenty of backup capacity, and the low-frequency transformer design feels solid. The built-in UPS function switches smoothly during outages, and the LCD display makes monitoring power usage simple.