4000 W pure sine wave output with a stated 10 ms transfer time.
Off-Grid Inverters
A4000 4000 W Off-Grid Inverter
OEM supply inquiryVolume-order inquiryModel A4000
Review the AMPEXE A4000 4000 W off-grid inverter for standalone solar and OEM supply projects.
4000 W pure sine wave output with a stated 10 ms transfer time.
Low-voltage and high-voltage MPPT configurations support up to 2000 W or 5000 W PV input.
Designed for 48 V sealed lead-acid, GEL, AGM, and LFP battery systems.
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Pure sine wave off-grid inverters for independent solar systems, battery-based mobile power, residential backup, remote sites, and generator-supported installations.
Low-voltage and high-voltage MPPT configurations support up to 2000 W or 5000 W PV input.
Designed for 48 V sealed lead-acid, GEL, AGM, and LFP battery systems.
Stated solar charging efficiency is up to 97%, depending on the MPPT configuration.
Model specifications
Technical specifications
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| Model | 4000W+LV MPPT | 4000W+HV MPPT |
|---|---|---|
| Rated Power (W) | 4000 | 4000 |
| Power Factor | 1 | 1 |
| AC Output Waveform | Pure sine | Pure sine |
| AC Output Voltage (VAC) | 230 | 230 |
| AC Output Frequency (Hz) | 50 | 50 |
| Battery Voltage (VDC) | 48 | 48 |
| AC Grid Mode | ||
| AC Voltage (VAC) | as grid/gen | as grid/gen |
| AC Voltage Range (VAC) | 176–264 | 176–264 |
| AC Frequency (Hz) | as grid/gen | as grid/gen |
| Transfer Time (Typical UPS, ms) | 10ms | 10ms |
| Charger Mode | ||
| AC Voltage (VAC) | 230 | 230 |
| AC Voltage Range (VAC) | 176–264 | 176–264 |
| Max. PV Array Power (W) | 2000 | 5000 |
| MPPT Range @ Operating Voltage (VDC) | 60–100 | 150–450 |
| PV Array Open Circuit Voltage (Max, VDC) | 100 | 480 |
| Maximum AC Charge Current (A) | 60 | 60 |
| Maximum Solar Charge Current (A) | 50 | 80 |
| Maximum Charge Current (A) | 110 | 80 |
| AC Charging Peak Efficiency | 94% | 94% |
| Solar Charging Efficiency (Max) | 97% | 97% |
| Nominal Battery Voltage (VDC) | 48 | 48 |
| Floating Charge Voltage (VDC) | 54 | 54 |
| Bulk Charging Voltage (VDC) | 56.4 | 56.4 |
| Overcharge Protection (VDC) | 66 | 66 |
| Charging Algorithm | 3-Step | 3-Step |
| Battery / Inverter Mode | ||
| Nominal Battery Voltage (VDC) | 48 | 48 |
| Cold Start Voltage (VDC) | 46 | 46 |
| Peak Efficiency | 92% | 92% |
| Overload Protection | 60s@105~125% load 15s@125~150% load 200ms@>150% | |
| Recommend Battery Type | sealed lead acid, GEL/AGM lead-acid or LFP | |
| Mechanics | ||
| Clear Dimension (D × W × H, mm) | 103.8 × 265 × 412.6 | |
| Recommended Installation | Mounting vertically | |
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Review solar input
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The listed transfer, surge, monitoring and protection features apply within quoted operating limits. Confirm PV, battery, generator and installation compatibility, plus local requirements, before approval.
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Dependable off-grid power in a compact format
Pure sine wave output, a stated transfer time, and selectable MPPT configurations support different off-grid project designs.
Off-grid homes and workshops
The 4000 W output supports independent property projects that require pure sine wave power.
Responsive backup systems
The stated 10 ms transfer may reduce interruption for compatible loads; it is not zero-transfer.
Flexible solar array designs
Low-voltage and high-voltage MPPT options let installers select an input approach for the planned system.
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