Vented, 30 amp AC input, 120 VAC/60 Hz (DC cover included) Outback vented inverters are designed mainly for RV or other mobile use, such as emergency vehicles, construction power, etc. They can also be used in marine applications where they are protected from any water spray, fumes, or high humidity. OutBack Power's M-Series inverter/chargers provide true sine wave power output, and intelligent battery charging. They are modularly expandable to your power needs providing a complete power conversion solution. They incorporate a DC to AC inverter, battery charger, and an AC transfer switch, which combines 30 amp pass through and neutral/ground switching. All OutBack Power inverter/chargers produce virtually distortion free sine wave AC power for on-board electronics like sensitive home theater equipment and microwaves with minimal RF interference. Industry leading surge power starts heavy loads like air conditioning. Power factor corrected battery charging gets the most out of your shore cord and generator while maximizing the life and performance of your batteries. Ultra fast AC transfer switch with neutral/ground switching seamlessly transfers shore cord current without dropping loads. Modular expandability is achieved through networked communications, allowing your inverter system to grow with your power consumption needs. The OutBack Power M-Series inverter is the superior choice when you need a reliable, powerful, modular, and true sine wave inverter/charger.