Alpha Compact 28/150 alternators are optimised to deliver continuous high power output in energy storage applications. Combined with Mastervolt 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 Compact to obtain a powerful, MasterBus enabled 3-step charger.
Compared to conventional alternators, Alpha Compact offers lower weight, smaller dimensions and reduced fuel consumption. This is made possible by its open construction with double internal fans. An integrated temperature sensor controls the operating temperature.
The Alpha Compact 28/150 alternator comes without a pulley.
Applications: Worldwide use in marine, mobile, infrastructure and industrial applications.
General specifications:
Charge regulation: an Alpha Pro III charge regulator comes standard with all models
Isolated operation: yes, with optional isolation bushings
Rotational direction: clockwise
Galvanic isolation: non-isolated
Cooling: integrated dual fan
Mounting: swivel arm
Pulley included: no
Weight: 7.9 kg (17.4 lb)
Technical specifications:
System voltage: 24V DC
Nominal current (at 6000 rpm, 25°C): 150A
Charge current (at 1800 rpm, 25°C): 28A
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
Key Features
Plug & play solution, with Alpha Pro III regulator included
Suitable for high ambient temperatures
Patented magnetic design
Up to 40% lighter & 25% more compact than conventional alternators
Up to 30% lower fuel consumption
High charge current at idle RPM
Cable & electronics protected against oil, moisture & dirt
Original Equipment quality
Full 2 year warranty