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

Name: Off Grid Solar Inverter 3KW 110V/220V Split Phase for Solar System
Brand: WeBright Solar

Product Overview

What This Product Is

A 3KW off-grid solar inverter designed for homes without grid access or with unreliable supply. It operates on 12V, 24V or 48V battery systems and delivers pure sine wave AC output at 110V/120V single phase or 220V/240V split phase. The inverter includes an 80A MPPT solar charge controller and supports configurable settings for voltage, frequency, charging parameters and load priority. It is suitable for residential solar systems in 110VAC/120VAC markets and can be set to match local utility standards.

Key Benefits

What You Get

Pure sine wave output suitable for sensitive electronics and motor loads
Built-in 80A MPPT charge controller eliminates need for a separate controller
Configurable output voltage and frequency to match 110V/120V or 220V/240V markets

Three-step charging algorithm optimises battery life and charge efficiency
Low battery voltage cut-off and alarm settings prevent deep discharge
Utility priority or battery priority mode allows flexible system operation

Who It Is For

Buyers and Sites

Solar installers building complete off-grid systems from one delivery
EPC contractors deploying solar kits in unstable-grid regions
Electrical wholesalers supplying off-grid components to end users
Homeowners in 110V/120V markets who need a self-contained inverter with MPPT charging

Application Scenarios

Where It Is Installed

Homes in remote areas with no access to the electrical grid
Rural households with frequent power outages and unstable supply
Solar-powered cabins, farmhouses and holiday homes needing reliable AC power
Backup power systems for critical loads during grid failure

Problems It Solves

What This Removes From the Job

Need to source an inverter and charge controller from separate suppliers that may not be compatible
Inverter output voltage not matching local AC standards like 110V or 220V split phase
Battery damage from improper charging due to lack of configurable charge profiles
No built-in MPPT controller leading to lower solar harvest and longer charge times
Inability to set low voltage cut-off or charging parameters for battery protection

Technical Features

How It Is Built

3KW rated inverter output with pure sine wave waveform
Supports 12V, 24V or 48V battery systems with configurable low voltage cut-off
Built-in 80A MPPT solar charge controller for efficient solar harvesting
Configurable output voltage: 100V / 110V / 120VAC or 200V / 220V / 240VAC split phase

Configurable output frequency: 50Hz or 60Hz with ±0.3Hz accuracy
Three-step charging algorithm with adjustable charging voltage and current
Overload and short-circuit protection with automatic shutdown on fault

Specifications

Technical Data

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

Inverter Output	3KW at 110V/120V single phase or 220V/240V split phase
Battery Voltage	12VDC / 24VDC / 48VDC
MPPT Charge Controller	80A built-in
Output Waveform	Pure sine wave
Output Voltage	100V / 110V / 120VAC or 200V / 220V / 240VAC (L+L)
Output Frequency	50Hz or 60Hz (±0.3Hz)
Inverter Efficiency	Peak >85%
Line Mode Efficiency	>95%
Overload Protection	100%<Load<110% (alarm 5min then stop), 110%<Load<125% (alarm 60s then stop), Load >125% (alarm 10s then stop)
Surge Rating	9000VA
Motor Starting Capability	1.5HP
Low Battery Cut-off	10V / 10.5V / 11V (12V system)
High Battery Voltage Alarm	(13.8-14.5V)+1V for 12V system
High Battery Voltage Recover	(13.8-14.5V)+0.5V for 12V system
Utility Input	200Vac / 220Vac / 240Vac (nominal)

Configuration

What Is in the Shipment

The packing list follows this table item by item.

MODEL	WS-PV33- 1012 TLV	WS-PV33- 1512 TLV	WS-PV33- 1524 TLV	WS-PV33- 2012 TLV	WS-PV33- 2024 TLV	WS-PV33- 3024 TLV	WS-PV33- 3048 TLV	WS-PV33- 4024 TLV	WS-PV33- 4048 TLV	WS-PV33- 5048 TLV	WS-PV33- 6048 TLV
Rated power	1KW	1.5KW	2KW	3KW	4KW	5KW	6KW
Power factor	1
Wave form	Pure sine wave
Output voltage RMS	100V / 110V / 120VAC (200V / 220V / 240VAC, L+L) ±10%
Output frequency	50Hz or 60Hz (±0.3Hz)
Inverter efficiency (peak)	>85%
Line mode efficiency	>95%
Overload	100%<Load<110% (alarm 5min then stop output ) / 110%<Load<125% (alarm 60s then stop output) / Load > 125% (alarm 10s then stop output )
Surge rating	3000VA	4500VA	6000VA	9000VA	12000VA	15000VA	18000VA
Capable of starting electric motor	1HP	1HP	1.5HP	1.5HP	2HP	3HP
Battery voltage	12VDC/24VDC	24VDC/48VDC	48VDC
Minimum start voltage	(10V / 10.5V / 11V )+0.5V for 12VDC mode (2 for 24VDC, 4 for 48VDC)
Low battery voltage cut off	10V / 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 mode	Load ≤50±20W(120V)/100±20W(220V)
Input waveform	Pure sine wave
Nominal input voltage	200Vac / 220Vac / 240Vac
Max input voltage	270Vac MAX
Input frequency	50Hz / 60Hz (auto sensing)
Efficiency (AC mode)	>95% (load, full battery)
Transfer time AC to DC	15ms(typical)
Maximum PV Array Power	1250W	1250W	2500W	1250W	2500W	2500W	5000W	2500W	5000W	5000W	5000W
Maximum PV Charge Current	80A
DC Voltage	12V / 24V	24V / 48V	24V / 48V
MPPT Range @ Operating Voltage	16~95VDC @ 12V / 30~130VDC @ 24V	30~130VDC @ 24V / 60~130VDC @48V	60~130VDC @48V
Maximum PV Array Open Circuit Voltage	100±2Vdc / 145±2Vdc	145±2Vdc	145±2Vdc
Maximum Efficiency	>98%
Standby Power Consumption	<2W
12V	30A	45A	60A	/	/	/	/
24V	20A	25A	30A	40A	60A	/	/
48V	/	/	/	20A	30A	35A	40A
Dimensions (WHD)	277196466mm	277186621mm
Ship Dimensions (WHD)	376306592mm	376296747mm
Net Weight (Solar CHG)(kg)	17.2	17.7	21.8	20.7	25.2	25.5	38.9	36.5	38	39
Shipping Weight (Solar CHG)(kg)	20	20.7	24.8	23.5	28.2	28.2	43	40.7	39.2	40.2
Warranty	1year

Materials

What It Is Made Of

Copper transformer inside the inverter for efficient power conversion
High-efficiency power semiconductors for inverter and MPPT controller
Anodised aluminium or galvanised steel enclosure for durability
High-grade PCBs with thermal management for stable operation

Manufacturing and Preparation

Before It Ships

Confirm battery voltage (12V, 24V or 48V) and system configuration
Set output voltage and frequency to match local AC standards
Configure charging parameters: voltage, current, and charging profile
Set low battery cut-off and alarm thresholds based on battery type
Test inverter and MPPT controller function before shipment
Package in wooden box with mounting hardware and user manual

Quality Control

Checked Before Packing

Inverter output voltage and frequency verified under load
MPPT controller tested with simulated solar input for tracking accuracy
Low battery cut-off and alarm thresholds checked at multiple voltage points
Charging profile settings validated for correct voltage and current delivery
Enclosure and internal components inspected for damage before packing

Customisation

What Can Be Changed at Order Stage

Battery voltage selected at 12V, 24V or 48V during order
Output voltage and frequency set to 110V/120V or 220V/240V split phase
Low battery cut-off point set to 10V / 10.5V / 11V for 12V systems

Charging voltage and current adjusted based on battery type and capacity
Utility priority or battery priority mode configured per user requirement

Comparison

How It Compares With the Alternatives

Grid-tie inverter	Works without grid connection, but requires a battery bank that a grid-tie system does not
Hybrid inverter	Simpler and lower cost, but cannot feed excess power back to the grid
Inverter with external charge controller	Single unit reduces wiring complexity and compatibility risk
Inverter with PWM charge controller	MPPT controller increases solar harvest by up to 30% under partial shading

Use Guide