The MS-PE series inverter/charger from Sensata Technologies is a 230 VAC / 50 Hz, pure sine wave inverter designed specifically for the most demanding renewable energy applications. The MS-PE series is powerful, easy-to-use and best of all, cost effective. Parallel stacking, You can parallel up to four inverter/chargers for up to 17.2 kW of power at 230 V. The ME-ARTR Router is required for parallel stacking the MS-PE Series. Power Factor Corrected (PFC) Charger: Our PFC charger is built into all of our inverter chargers. It uses less energy from a generator than a standard charger, using 25 to 30% less AC current than standard chargers. Safe and reliable: The MS-PE series is listed to the stringent requirements of CE for renewable energy installations.