Check the listing for details. 4500W / 70A PMA For 48V Battery Charging / Alternator Generator Engine MAG-CORE. Condition: New. Listed at 399.99 USD. Permanent Magnet Alternators PMA Permanent wind turbine mills Magnet Alternator Permanent Magnet generator wind power PMG wind turbine wind turbines This Auction is for an AVENGER COOL RUNNING Single Rotor PMA Engine driven PMA / PMG 4500 WATTS / 70 Amps peak at 60V 3-Phase / 3-wire Comes with pulley and cooling fan DUAL PMA FOR 48 Volt ENGINE & HYDRO applications ONLY!(does not come with wind stabilizer since this model can not be used or wind) Must use a fan belt drive on this model! (Do Not Remove) CW Rotation only.Below is a video of our dual-core modelNeeds to be on a 8 hp gas engine for best fuel economy(6 hp+ Diesel engines work fine too)LOW VOLT AND HIGH AMPS 48-60 volts at 2500 RPM = 70 amps peak2700 RPM MAXIMUM!1900 RPM for >34 Volts + 2400 RPM for >57 Volts +2650 RPM for >78 Volts +(For 48-60 Volt Batteries DO NOT exceed 2700 RPM)1680 RPM peak for 24 volt battery charging. Comes with 80MM pulley and fan (this model must have fan cooling) Not made for wind turbines! For Engine Drives only.LOW COGGING / Power-Core PMA's have amazing power and GREAT low speed start up! Can be run Clock Wise (CW) or Counter Clock Wise (CCW) but when running CCW the shaft requires a "Carter pin lock" and thread glue to keep the pulley from coming off the shaft. By Hornet Power Systems Use these powerful permanent magnet alternators (PMA's) to make cheap electricity with wind turbines Stop wasting up to 50% of your power energizing the coil of standard brush type alternators. Get a real PMA! Permanent magnet alternators are by no means standard "Automotive" alternators containing brushes and electro-magnetic coils. A PMA does not waste power by having to continuously create an energy intensive magnetic field. We sell only highly efficient - long lasting true permanent magnet alternators with Neodymium Magnets!