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Mastervolt
Alpha Compact 28/150

Alpha Compact 28/150

Product catalog summary

Overview: The Alpha Compact 28/150 alternator is designed for high power output in energy storage applications, compatible with all battery types including Lithium Ion. It is optimized for use with Alpha Pro regulators, providing a high-performance, plug-and-play charging solution.

Advantages: These alternators are lighter, more compact, and consume less fuel compared to conventional models. They feature an open construction with dual internal fans and an integrated temperature sensor for efficient operation.

Models: The series includes 7 models available in 12 V and 24 V, with specific models suited for Volvo Penta engines. Mastervolt offers assistance in selecting the appropriate model for specific applications.

Accessories: Some models come with a multi-groove pulley, while others do not. A range of pulleys is available from Mastervolt.

Applications: Suitable for marine, mobile, infrastructure, and industrial applications worldwide.

Features:

Plug and play with Alpha Pro III regulator included.
Operates in high ambient temperatures.
Patented magnetic design.
Up to 40% lighter and 25% more compact than conventional alternators.
Up to 30% lower fuel consumption.
High charge current at idle RPM.
Protection against oil, moisture, and dirt.
Wide range of accessories available.
Original Equipment quality with a 2-year warranty.

Specifications:

Charge regulation: Alpha Pro III charge regulator standard.
Isolated operation: Yes, with optional isolation bushings.
Rotational direction: Clockwise.
Galvanic isolation: Non-isolated.
Cooling: Integrated dual fan.
Mounting: Swivel arm.
Pulley: Not included.
Weight: 7.9 kg (17.4 lb).

Technical Specifications:

System voltage: 24 V.
Nominal current: 150 A at 6000 rpm, 25 °C.
Charge current: 28 A at 1800 rpm, 25 °C.
Cut-in speed: 1700 rpm.
Max. rotational speed: 16,000 rpm.
Power Take Off: 8.4 kW / 11.4 hp.
Max. operating temperature: 120 °C (248 °F).
Connections: Positive output stud = 2x M8; W (rpm) signal connection = isolated fast-on; field current connection = Mastervolt plug.
Temperature sensor: Integrated, RJ12 connection.

Catalog excerpts

Alpha Compact alternators are optimized to deliver continuous high power output in energy storage applications. Combined with our Alpha Pro regulators, they create a high performance, plug-and-play charging solution. This combination is suitable for all battery types, including Lithium Ion. These automotive style alternators offer many advantages. Most manufacturers offer a second alternator option, better known as PTO or Power Take Off option. This provides a straight-forward way to add an Alpha Compact as a second alternator. Alternatively, the stock alternator can be replaced with an Alpha...

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Specifications General specifications Charge regulation an Alpha Pro III charge regulator comes standard with all models Isolated operation yes, with optional isolation bushings Rotational direction Galvanic isolation Pulley included Technical specifications System voltage Cut-in speed positive output stud = 2x M8; W (rpm) signal connection = isolated fast-on; field current connection = Mastervolt plug Temperature sensor

Open the catalog to page 3

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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