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Alpha Pro II charge regulator
Cat. No. MV-45512000
Weight 1 lbs

  • Suitable for 12 and 24 V
  • Including plug & play connection cable, also for Bosch alternators
  • Automatic voltage and temperature compensation
  • MasterBus compatible

The Alpha Pro MB charge regulator maximizes the output of Mastervolt Alpha alternators or any other alternator by regulating the alternator in a way that the batteries receive the optimum charge. The proven 3-step+ charge method used by all Mastervolt battery chargers guarantees fast and safe charging of your batteries.

The charge regulator is designed as a ‘fit all’ solution, just one unit is needed for both 12 and 24 V applications, with a simple selector switch to set the regulator to the right voltage. The unit can also be used on any other brand of alternator that has a standard Bosch connector, with a cable supplied as standard in the box. Easy operation LEDs on the body of the regulator indicate the charge phase.

The Alpha Pro MB is also fully connectable to the MasterBus CANBus system, allowing easy monitoring via a MasterView touch screen. In a MasterBus system the voltage drop over the battery cable will be compensated automatically, as well battery temperature, improving the charging time without having to install additional cabling.

The Alpha Pro MB helps to cut emissions by requiring less run time because it maximises the power from any alternator; a battery can be charged quickly even at very low RPM, especially when connected to an Alpha series alternator. By connecting the Alpha alternator to a Battery Mate or battery isolator, several battery banks can be charged simultaneously.

General specifications 
 Link to MasterShunt yes
 Connection to Mastervolt alternator yes
 Connection to Bosch alternator yes
 Cooling fanless
 Nom. output voltage 12 V / 24 V
 Cable length regulator/alternator 1.5 mtr oil resistant connection cable
 Cable length temperature sensor 6 mtr
 Connection plug regulator/alternator Alpha/Mastervolt
 Display/read-out LED display
 MasterBus powering yes
 Dimensions, hxwxd<>90 x 109 x 30 mm
3.5 x 4.3 x 1.2 inch
 Weight<>0.4 kg
0.9 lb
 Approvals CE
 Technical specifications 
 Charge characteristic IUoUo, automatic / 3-step+ for gel/AGM/wet/Lithium Ion
 Charge voltage Bulk 14.25 V / 28.5 V
 Charge voltage Absorption 14.25 V / 28.5 V
 Absorption time 4 hours, adjustable from 2 minutes to 12 hours
 Charge voltage Float 13.25 V / 26.5 V
 Temperature compensation<>-30 mV / °C
-17 mV/ °F
 Voltage compensation voltage drop compensation in DC cables up to 3 V
 Alternator type various




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