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    400 Watt Pure Sine Wave Power Inverter, 12V DC to 110V AC

    5 out of 5 based on 1 reviews | Write a review
    $145.65
    $150.68
    400 Watt pure sine wave power inverter efficiently converts 12V/24V DC to 220V/110V AC with very low idle consumption. It features intelligent cooling, multiple protection mechanisms, AC and USB outputs, and fuse protection, making it safe and reliable for both indoor and outdoor use.
    SKU: ATO-PI-400W
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Affordable 400 Watt pure sine wave power inverter for sale. This powerful inverter converts 12V/24V DC to 220V/110V AC and delivers pure sine wave output, ensuring your sensitive electronics operate smoothly and safely. With very low idle consumption and multiple protections, it’s the ideal power solution.

    Specification

    Model ATO-P400
    Output Power 400W
    Peak Power 800W
    Output Voltage* 110V/220V (±5%)
    Output Frequency 50/60Hz±3%
    No-load Current (less-than) ≤0.5A   
    Output Wave Pure sine wave
    USB Port 5V 2.1A
    Protection Under-voltage reminder, automatic shutdown, over-temperature, over-voltage, short circuit, reverse polarity, leakage, overload protection
    Input Voltage 12V/24V
    Fuse 50A*1/25A*1
    Cooling Fan With load and temperature control
    Weight (net) 1.4kg
    Humidity ≤90%, non-condensing
    Size 215*155*58mm
    Certificate CE-EMC/LVD,ROHS


    Features

    • 400W output power and 800W peak power
    • Converting 12V/24V DC to 220V/110V AC efficiently
    • USB ports for various devices
    • Aluminum alloy shell with good heat dissipation
    • Intelligent control chip and <10ms transfer time
    • Multiple protections against short-circuit, overload, over-temperature, over-voltage, and reverse polarity
    • Pure sine wave, stable power output
    • Cooling fan with excellent thermal management

    Details

     400w power inverter size400w pure sine wave power inverter

     

    Wiring Diagram

     400w pure sine wave power inverter wiring

     

    Applications

     400w pure sine wave power inverter applications

    Tips: How to reset this 400W pure sine wave inverter after overload protection is triggered?

    • First, disconnect all connected load devices and check whether the total power exceeds 400W (or if the starting power exceeds the limit) to rule out "equipment overload" issues.
    • Next, inspect the input voltage (e.g., whether the car battery voltage is below 10.5V or above 15V, as battery undercharge/overcharge may trigger low/high voltage protection, which exhibits symptoms similar to overload protection). If no issues are found, turn off the 400 Watt pure sine wave power inverter's power switch and wait 3-5 minutes (to allow the internal protection circuit to reset).
    • Then, turn the switch back on, and the inverter should resume normal operation. If the protection is repeatedly triggered, further troubleshooting of the load or input power source for potential faults is required.
    Existing reviews of 400 Watt Pure Sine Wave Power Inverter, 12V DC to 110V AC
    Reliable and well-built inverter
    I’ve been using this 400W pure sine wave power inverter for a while now, and it has performed better than I expected. It converts 12V DC to 110V AC very efficiently, and the low idle consumption helps preserve battery power during longer use. The AC and USB outputs are convenient—I can run small appliances while also charging my phone at the same time. The intelligent cooling fan is quiet, and the built-in protections and fuse give me confidence when using it outdoors or in my vehicle.
    From: Caleb | Date: 18/11/2025
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