The Freedom's second generation 3000-watt model is perfect for various applications including commercial, emergency and recreational vehicles, marine vessels, construction, and military equipment. A key feature enhancement is 'Generator Support Mode' which enables the Freedom SW to supplement a generator when AC loads exceed the generator's capacity. The new generation models also feature improved AC transfer/AC input detection time, providing the ability to transfer AC loads to batteries in less than 10 milliseconds when the incoming grid or generator power is lost. Connected loads are almost unable to feel the power transition due to this quick transfer time. Approved to UL458 with marine supplement, CSA, ABYC, and FCC, Class B requirements. New Parallel And Series StackingParallel stacking enables the Freedom SW inverter/charger to double the AC output in inverter mode. Series stacking enables the Freedom SW inverter/chargers to generate 120/240V split phase output. Two AC source must be split phase. Requires stacking cable. Freedom SW3012 12V Inverter/Charger Features:• Pure sine wave output to operate sensitive electronics• Advanced configuration options for customized applications• Parallel and series stacking capability• Built-in transfer switch automatically transfers between inverter power and incoming AC power• Power factor corrected, multi-stage charger for fast, efficient charging• Temperature-compensated charging for a variety of climate conditions• Ignition lockout feature helps prevent unnecessary battery drain when the alternator is not providing power• Wide operating temperature range: -4°F to 140°F• Conformal coated circuit boards for humid environments• Dual input/Dual output AC interface• Ability to charge batteries drained to extremely low voltage• Compatible with the Xantrex Automatic Generator Start (Part# 809-0915)Protection Features:• Battery over-voltage and under-voltage protection• Over-temperature shutdown• Automatic overload protection• Short-circuit protection• Integrated, resettable AC breakers Parallel & series stacking Pure sine wave output for sensitive electronics Multi-stage charger for fast, efficient charging | Schneider Electric Solar Inverters Usa Freedom SW 3000 Watt Inverter/Charger