Permanent Magnet Alternators PMA Permanent wind turbine mills Magnet Alternator Permanent Magnet generator wind power PMG wind turbine wind turbines
Magnum PMA for 48 Volt ENGINE & HYDRO 
battery charging applications ONLY! 
NOT for wind turbine use!

Comes with pulley and cooling fan 
(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.
#MG1212AC  3-Phase / 3-wire
4000 WATTS / 180 AMPS
RUNS COOL / 100% Duty Factor!

Needs to be on a 6.5 hp gas engine for best fuel economy
(4 hp+ Diesel engines work fine too)

LOW VOLT AND HIGH AMPS

12 volts battery charging at 2475 RPM = 160 amps 

2700 RPM MAXIMUM!
1940 RPM for >14 Volts + 
2280 RPM for >18 Volts +
2580 RPM for >21 Volts +
(DO NOT exceed 2700 RPM)
High voltage is fine for GROUP L16 L/A or LTO battery types.
Use one of our BATTERY REGULATORS to stop the charge at
peak voltage of battery to prevent any over charging.



GET FREE HOT WATER WHEN 
YOU USE WATER COOLED ENGINES
Can heat 1000 Gallons to the boiling point per day for FREE! 
Great for off grid living. Heat your home with it (1600 Sq.Ft. raised by degrees 40F! This is FREE heating while your making your own electricity anyhow! A must do for homesteaders) Heat Spa's and Pool's. Wash cloths and dishes too.

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!