Mean Well ISI-501-148A True Sine Wave DC-AC Inverter 500W 110V out 12V in with MPPT Solar Charger

This model is designed for DC-to-AC power conversion in systems that need 110V AC output from a DC battery source. It is a good fit for mobile, off-grid, industrial, and backup power applications that also benefit from an integrated MPPT solar charger. Its true sine wave output makes it suitable for equipment that needs cleaner AC power.

The ISI-501-148A is rated for 500W continuous output and provides 110V AC output. It supports surge power up to 1000W and reaches up to 88% efficiency. The listed DC input voltage range is 42 to 60VDC.

Yes, this model provides true sine wave AC output with total harmonic distortion below 3%. That makes it a better choice for sensitive electronics and loads that perform best with cleaner waveform quality. It is differentiated from modified sine wave units by its lower distortion output.

Yes, it has a built-in 500W MPPT solar charger. Mean Well lists typical MPPT efficiency at 98%, which helps improve solar charging performance compared with non-MPPT charging approaches. This integrated design can reduce the need for a separate charger in compatible systems.

The ISI-501-148A includes battery low alarm, battery low shutdown, over voltage, over temperature, output short, input polarity reverse, and overload protection. For overload, it can handle 110% load for 60 seconds before shutdown protection activates. Recovery for several fault conditions is specified by re-powering the unit.

This model is specified for open and sealed lead acid batteries. That makes it appropriate for systems built around those battery chemistries rather than requiring a separate battery profile not listed here. Buyers using other battery types should verify suitability before purchase.

It is rated for operation from -20°C to +40°C at 100% load. The specification also states up to 60°C at 50% load, which can be relevant in warmer installations with reduced output demand. A thermostatically controlled cooling fan is built in to support thermal management.

The unit is listed as approved to IEC62368-1 CB and EAC TP TC 004, and it meets BS EN/EN62368-1. These are relevant safety standards for professional and industrial buyers. Mean Well also specifies a 3-year warranty for this model.