The Mastervolt Alpha 24/75 III multigroove alternator delivers fast and complete charging of starter and service batteries.

This 24V alternator is delivered as 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.

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

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.

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.

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

- Total charge current: 75 A

- Belt section: 2xA

- Isolated operation: yes

- Rotational direction : 2

- Mounting: Six o'clock

- Charge voltage absorption: 28.5 V

- Charge voltage float: 26.5 V

- Nominal diameter pulley: 89 mm/ 3.5 inch

Key Features

For all engine types

Fast charging, even at a stationary rpm

Performs above 40 °C