Cart 0
Mastervolt-48512130- 12/130, incl. 3-step Alpha Pro II charge regulator

Mastervolt-48512130- 12/130, incl. 3-step Alpha Pro II charge regulator

  • $ 0.00 USD

Alpha 12/130 MB

TIP: A second alternator on the main engine, combined with a larger battery bank and inverter, could be an alternative for a generator.

  • Fast & complete charging of starter and service batteries.
  • Power supply for all consumers.
  • 12 V and 24 V versions.
  • 75 A to 150 A charge current.
  • Standard delivered with Alpha Pro MB charge regulator for an optimal performance and longer-lasting batteries.

Using a Battery Mate or battery isolator in conjunction with an Alpha alternator makes it possible to easily charge two or three separate battery sets simultaneously.

For all engine types

Alpha alternators are equipped with several fixations for customised alternator brackets, available from your installer or engine supplier. Some engine brands come with Mastervolt alternator brackets as an option.

Fast charging, even at a stationary rpm

Standard alternators only supply the specified capacity at a high rpm. The Mastervolt Alpha alternator is specifically designed for powerful charging, even with a low engine rpm.

Multi-belt pulley

The 12/130 and 24/75 models are also available with a multi-belt pulley.

Performs above 40 °C

Forced cooling by fan operation of the pulley provides a lot of power in higher temperatures, especially close to the engine.



General specifications
Charge regulation an Alpha Pro MB regulator comes standard with all models
Total charge current 130 A
Cable length regulator/alternator 1.5 metre, oil resistant connection cable - delivered as standard
Belt section 2xA
Isolated yes
Directions of revolutions 2
Mounting six o’clock
Dimensions see ‘downloads’ for drawings
Weight 10.1 kg
22.3 lb
Technical specifications
Charge voltage Absorption 14.25 V
Charge voltage Float 13.25 V
Pulley (double) diameter 88 mm
3.5 inch
download pdf

We Also Recommend