XANTREX FREEDOM SW 3012
Twenty years ago, modified sine-wave (MSW) inverters provided adequate power to equipment that is regulated by analog or mechanical devices. Today, everything from your coffee maker to your refrigerator has a microprocessor that relies on the smooth flow of true sinewave (TSW) power. Some new appliances won’t run on older inverters’ AC oscillations.
The Freedom SW 3012 ($1,789.99, westmarine.com) serves as a steady source of 3,000 watts of AC power to run delicate electronics, like computers and smart TVs, that might otherwise misbehave or even fail on MSW power. When shore power is present, the Freedom SW becomes your house battery charger, ensuring the battery bank stays fresh. With the optional remote-control panel, you can easily monitor power use and source, battery levels, temperature and charge rate if AC power is present. It offers the further convenience of providing an easy readout of fault codes and an ability to reset them without having to crawl in the tight spaces where the inverter may be located. An optional Combox appbased Wi-Fi monitor can keep you in touch with your system from anywhere on the planet.
In our tests, the refrigerator ran smoother, the flat-panel TV operated flawlessly, and we could run our Keurig digital coffee maker.
In our installation, the Freedom’s voltage sensor detects shore power or genset power automatically and, in its absence, activates to keep seamless power to onboard devices.