Mastervolt Alpha lll Multigroove Alternator - 12V/130A

The Mastervolt 12V/130A Alpha lll Multigroove Alternator comes standard with the Alpha Pro III 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.

• Fast and complete charging of starter and service batteries
• Power supply for all consumers
• 12 V version
• 130 A charge current

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

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.

Multigroove pulley

The 12/130 and 24/75 models are also available with a multigroove 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 III regulator comes standard with all models
• Total charge current: 130 A
• Cable length regulator/alternator: 1.5 m, oil resistant connection cable - delivered as standard
• Belt section: 2xA
• Isolated operation: Yes
• Rotational direction: 2
• Mounting: Six o'clock
• Weight: 10.1 kg

Technical Specifications

• Charge voltage absorption: 14.25 V
• Charge voltage float: 13.25 V
• Nominal diameter pulley: 89 mm (3.5")

Included Accessories

• Alpha Pro lll charge regulator

Technical Files

Product Notifications
User Manual
Installation Manual
Installation Drawing
Dimension Drawing
Datasheet