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Solar Power Supply Equipment

Off Grid Inverter 3KW 110V/220V Split Phase for Solar Home System

Off Grid/Stand-alone Type 1KW -6KW 24V/48Vdc With Cooper Transformer inside 110V/220V Available by Setting Pure Sine Wave With 30A-65A Battery Charger

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Blue solar inverter unit with mounting brackets, side terminals, and front LCD display panel.
Multiple solar panels installed on a concrete rooftop with a small wind turbine in the background.Digital rendering of two solar panels standing vertically against a white background.
Product Overview

What This Product Is

A 3KW off-grid inverter for solar home systems with split-phase output, compatible with 110VAC/120VAC and 220VAC/240VAC markets. It operates on DC 12V/24V/48V battery voltage and features pure sine wave output, LCD multi-function display, and adjustable settings for output voltage, frequency, charging voltage and current. Designed for use with solar charge controllers to build a complete solar home system with free sunshine and reduced electricity bills.

Key Benefits

What You Get

  • Pure sine wave output suitable for sensitive electronics and motor loads
  • Split phase output with HOT1 + N + HOT2 for 110V/220VAC applications
  • Output voltage settable to 100V/110V/120VAC and frequency to 50Hz/60Hz
  • LCD display with MFD (multi-function display) and user-friendly interface
  • Three-step optimization for battery charging to extend battery life
  • Overload and short-circuit protection with breaker and software safeguards
Who It Is For

Buyers and Sites

  • Solar installers building complete off-grid home systems
  • Importers and wholesalers supplying solar kits to off-grid markets
  • Homeowners in rural or remote areas seeking solar independence
  • Electricians and technicians commissioning solar systems with adjustable settings
Application Scenarios

Where It Is Installed

  • Homes in off-grid areas with no reliable utility connection
  • Solar home systems in markets using 110VAC or 220VAC split-phase power
  • Residential systems where motor-driven appliances like refrigerators or pumps are used
  • Backup power for homes with frequent grid outages and unstable supply
Problems It Solves

What This Removes From the Job

Technical Features

How It Is Built

  • Split phase output with HOT1 + N + HOT2 for 110V/220VAC applications
  • Pure sine wave output with bypass mode matching input waveform
  • LCD multi-function display for real-time monitoring and settings
  • Adjustable output voltage: 100V / 110V / 120VAC ±10%
  • Adjustable output frequency: 50Hz or 60Hz ±0.3Hz
  • Capable of starting electric motors up to 1.5P (3KW model)
  • Overload protection with breaker and software monitoring
Specifications

Technical Data

Values below are taken from the product documentation. Anything not listed is confirmed against your order.

Inverter Output3KW rated power, 9000VA surge rating
Output Voltage100V / 110V / 120VAC or 200V / 220V / 240VAC ±10%
Output Frequency50Hz or 60Hz ±0.3Hz, settable
Wave FormPure sine wave / Same as input wave form (bypass mode)
Battery Voltage12VDC / 24VDC / 48VDC
Minimum Start Voltage10V / 10.5V / 11V for 12VDC mode (×2 for 24VDC, ×4 for 48VDC)
Low Battery Cut-off10V / 10.5V / 11V for 12VDC mode (×2 for 24VDC, ×4 for 48VDC)
High Battery Alarm(13.8–14.5V)+1V for 12VDC mode (×2 for 24VDC, ×4 for 48VDC)
High Battery Recovery(13.8–14.5V)+0.5V for 12VDC mode (×2 for 24VDC, ×4 for 48VDC)
Save Mode Load≤50±20W (120V) or 100±20W (240V)
Inverter Efficiency>80% peak
Overload ProtectionBreaker + software protection
Short Circuit ProtectionBreaker + software protection
Charging CurrentSettable
Utility/Battery PrioritySettable
Utility Input RangeWide or narrow range, settable
TransformerCooper transformer inside
Configuration

What Is in the Shipment

The packing list follows this table item by item.

MODELWS33- 1012 TLVWS33- 1024 TLVWS33- 1512 TLVWS33- 1524 TLVWS33- 2012 TLVWS33- 2024 TLVWS33- 3024 TLVWS33- 3048 TLVWS33- 4024 TLVWS33- 4048 TLVWS33- 5048 TLVWS33- 6048 TLV
Rated power1KW1.5KW2KW3KW4KW5KW6KW
Surge rating3000VA4500VA6000VA9000VA12000VA15000VA18000VA
Capable of starting electric motor1P1P1.5P1.5P2P3P
Power factor1
Wave formPure sine wave / Same as input wave form (bypass mode)
Output voltage RMS100V / 110V / 120VAC (200V / 220V / 240VAC) ±10%
Output frequency50Hz or 60Hz (±0.3Hz) (can be set)
Overload protectionBreaker + software protection
Output short circuitBreaker + software protection
Inverter efficiency (peak)>80%
Overload100% < Load < 110% (alarm 5min then stop output and fault code 07) 110% < Load < 125% (alarm 60s then stop output and fault code 07) Load > 125% (alarm 10s then stop output and fault code 07)
Battery voltage12VDC / 24VDC24VDC / 48VDC48VDC
Minimum start voltage(10V / 10.5V / 11V )+0.5V for 12VDC mode (*2 for 24VDC, *4 for 48VDC)
Low battery voltage cut off10V / 10.5V / 11V for 12VDC mode (*2 for 24VDC, *4 for 48VDC)
Low battery voltage alarm(10V / 10.5V / 11V )+0.5V for 12VDC mode (*2 for 24VDC, *4 for 48VDC)
High battery voltage alarm(13.8-14.5V)+1V for 12VDC mode (*2 for 24VDC, *4 for 48VDC)
High Battery Voltage Recover(13.8-14.5V)+0.5V for 12VDC mode (*2 for 24VDC, *4 for 48VDC)
Save modeLoad ≤50±20W(120V)/100±20W(220V)
Input waveformPure sine wave
Nominal input voltage200Vac / 220Vac / 240Vac
Max input voltage270Vac MAX
Input frequency50Hz / 60Hz (auto sensing)
Efficiency (AC mode)>95% (load, full battery)
Transfer time AC to DC15ms(max)
Transfer time DC to AC15ms(max)
Boost voltage14.1V(Default) Range of adjustment 13.8-14.5V / *2 for 24VDC / *4 for 48VDC (Regulation step 0.1V)
Float voltage13.5V(Default) Range of adjustment 13.5-13.7V / *2 for 24VDC / *4 for 48VDC (Regulation step 0.1V)
12V30A45A60A////
24V20A25A30A40A60A//
48V///20A30A35A40A
Dimensions (W*H*D) (mm)277*196*466mm277*186*621mm
Ship Dimensions (W*H*D) (mm)381*316*597mm381*306*752mm
WarrantyOne year (standard), 2 years optional (IP20)
Materials

What It Is Made Of

  • Copper transformer inside the inverter unit
  • Anodised aluminium or steel enclosure for durability
  • High-grade electronic components for stable power output
Manufacturing and Preparation

Before It Ships

  • Select battery voltage (12V/24V/48V) based on system size and load
  • Set output voltage and frequency to match local AC standard
  • Configure charging voltage and current based on battery type
  • Connect to solar charge controller and battery bank before commissioning
  • Test inverter output and protection functions before final installation
Quality Control

Checked Before Packing

Customisation

What Can Be Changed at Order Stage

  • Output voltage set to 100V / 110V / 120VAC based on market requirement
  • Output frequency set to 50Hz or 60Hz depending on regional standard
  • Battery voltage configured for 12V, 24V, or 48V system
  • Charging parameters adjusted for GEL, AGM, or lithium battery types
  • Utility input range set to wide or narrow based on grid stability
Comparison

How It Compares With the Alternatives

Grid-tie inverterWorks without a grid connection, but requires a battery bank and solar controller to operate
Hybrid inverterSimpler design with no grid synchronization, but cannot feed excess power back to the grid
Basic off-grid inverterIncludes LCD display and adjustable settings, but lacks integrated solar controller
Modified sine wave inverterProvides pure sine wave output suitable for sensitive loads, but higher cost
Use Guide

Getting It Working on Site

1

Confirm battery voltage (12V/24V/48V) before connecting the inverter

2

Set output voltage to match local AC standard (110V or 220V)

3

Adjust frequency to 50Hz or 60Hz based on regional power supply

4

Configure charging voltage and current for the battery type used

5

Connect solar charge controller to the inverter for full solar system integration

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FAQ

Questions About the Off Grid Inverter 3KW 110V/220V Split Phase for Solar Home System

What is the output voltage range of this inverter?

The output voltage is settable to 100V / 110V / 120VAC or 200V / 220V / 240VAC ±10%

Can I use this inverter with a 48V battery bank?

Yes. The inverter supports 12V, 24V, and 48V battery voltage inputs

Is the output pure sine wave?

Yes. The inverter delivers pure sine wave output suitable for sensitive electronics and motor loads

Can I set the frequency to 50Hz or 60Hz?

Yes. The frequency is settable to 50Hz or 60Hz with ±0.3Hz accuracy

Does it support split-phase output?

Yes. It provides split-phase output with HOT1 + N + HOT2 for 110V/220VAC applications

What protection features does it have?

It includes overload and short-circuit protection with breaker and software safeguards

Can I adjust the charging parameters?

Yes. Charging voltage and current are settable to match battery type and usage

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