Mean Well ISI-501-124C True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger

This model provides a 110V AC output with a 500W continuous power rating. It also supports surge power up to 1000W, which helps it handle short startup demands from some equipment. The inverter uses a true sine wave output with THD below 3%.

The specified input voltage range for this model is 21 to 30VDC. That makes it suitable for systems designed around that DC input range rather than lower-voltage DC sources. Buyers should match the inverter to the voltage range listed in the product specifications.

Yes. The ISI-501-124C includes a built-in 500W MPPT solar charger. Mean Well lists the typical MPPT efficiency at 98%, which is a key differentiator versus inverter-only models.

According to the product specifications, this inverter is designed for open and sealed lead acid batteries. That makes it a fit for lead-acid based DC power systems where an inverter and MPPT charging function are needed in one unit. The listed battery compatibility does not mention lithium battery chemistries.

This model includes battery low alarm, battery low shutdown, over voltage, over temperature, output short, input polarity reverse, and overload protection. For overload, over temperature, and output short conditions, the unit shuts down the output and recovers after re-powering on. Reverse polarity protection is handled by an internal fuse opening.

It is rated for operation from -20°C to +40°C at 100% load, and up to 60°C at 50% load. The unit also uses a thermostatically controlled cooling fan to support thermal management. For buyers comparing industrial power products, those ratings make it appropriate for many non-climate-controlled equipment environments within the stated limits.

This model is best suited for applications that need 110V AC output from a DC power system and benefit from an integrated MPPT solar charger. Typical B2B use cases include mobile power systems, off-grid equipment, and industrial or field installations where true sine wave output is important. Its 500W rating makes it a better fit for moderate loads rather than large high-power systems.

The ISI-501-124C measures 205 x 158 x 67 mm and weighs 2.35 kg. Mean Well lists a 3-year warranty for this inverter. Those details are useful when comparing compact inverter options for panel, vehicle, or equipment enclosure planning.