Alternateur Alpha Compact 28/150 Volvo Penta

Free pickup point for orders over €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

via our network of certified installers

Find an installer

Support service

Choose additional installation support

Säästad 17%

Mastervolt

46228152

Alpha Compact 28/150 generaator Volvo Penta

The Mastervolt Alpha Compact 28/150 high-performance alternator (24 V / 150 A) delivers massive charging current from idle speed to quickly recharge house battery banks, including lithium-ion types. Designed as part of the manufacturer’s ultra-compact current range, this model is specifically sized for direct secondary alternator mounting on Volvo Penta marine engines (D4 to D13 series) and requires integration with the external Alpha Pro III regulator for thermal and electrical management.

Included with the product: Alpha Compact 28/150 VP alternator with built-in 8-rib pulley (supplied without mounting bracket, insulating bushings, or Alpha Pro III charge regulator).

Public priceGet pro pricing

2.250,16€

2.250,16€ ~~2.734,80€~~

Käibemaksuga Tarne arvutatakse makse tegemise ajal.

Laosolekus

Free pickup point for orders over €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

via our network of certified installers

Find an installer

Support service

Choose additional installation support

Technical specifications

Seeria	Alpha Compact
Nimipinge	24.0
Nimivool	150.0
Võimsus	8.4
Maksimaalne pöörlemiskiirus	16000.0
Lülitumiskiirus	1700
Seisakuvool	30.0
Montaažistiil	Saddle mount
Pöörlemise suund	Schedule
Galvaaniline eraldus	Uninsulated
Eksituse kontrollitavus	External
Korpuse temperatuurianduri tugi	Oui
Pöördketta minimaalne läbimõõt	53.3
Pöördketta maksimaalne läbimõõt	71.1
Minimaalne rihmratas suhe	2.25
Maksimaalne rihmiku suhe	3.0
Pöördkett kaasas	Oui
jahutusmeetod	Dual integrated fan
jahutustuulete arv	2.0
Maksimaalne töötemperatuur	120.0
Laadimise peatamise temperatuur	120.0
Kaal	7.9
Mereolukorraks konfigureeritud	Oui
Väljundterminali suurus (mm)	M8

Detailed description

Alpha Compact 28/150 generaatori esitlus Volvo Penta jaoks

Mastervolti Alpha Compact 28/150 generaator (tellimusnr 46228152) on mõeldud pideva energia tootmiseks mere- ja tööstuslikes keskkondades. See 24 V alalisvoolu mudel on mõeldud otse paigaldamiseks Volvo Penta mootoritele seeriaidest D4 kuni D13. Teda kasutatakse põhigeneraatorina asendamisel või lisageneraatorina (jõu võtmine) teenindusakude laadimiseks. Seade tarnitakse ilma Alpha Pro III laaderegulaatorita, mis on vajalik väljundpinge ja -voolu kontrollimiseks.

Tehnilised näitajad ja andmed

Generaator toodab nimivoolu 150 A 6000 p/min juures (25 °C). Sisselülitamiskiirus on 1700 p/min, võimaldades 28–30 A voolu andmist generaatori pöörlemiskiirusel 1800 p/min (sõltub mootori pöörlemiskiirusest). Maksimaalne lubatud pöörlemiskiirus on 16 000 p/min. Mehaaniline võimsus (PTO) on 8,4 kW (11,4 hj), mehaanilis-elektrilise konversiooni kasutegur umbes 50 %. Töötemperatuuri tippväärtus on 120 °C, mida jälgib sisse ehitatud temperatuuriandur RJ12 ühendusega.

Mehaaniline konstruktsioon ja paigaldus

Alpha Compact 28/150 kaalub 7,9 kg. Siseehitus võimaldab 40 % kaalu vähendamist ja 25 % ruumivajaduse vähendamist võrreldes samasuguse võimsusega traditsiooniliste generaatoritega. Jahutus toimub kahe siseventilaatori abil, mis nõuavad paigaldamist päripäeva (vaadates poltide poolt). See mudel on juba algusest peale varustatud Volvo Penta mootoritele sobiva mitme ribiga poltiga ja kinnitatakse pöörleva käega. Seade pole isoleeritud (miinus on ühendatud metallkorpusega). Galvaanilise isoleerimise vajadusel on saadaval valikuline isolatsiooniküpsete komplekt (tellimusnr 48420240), mis muudab kinnitusauke M10-st M8-ks või M12-st M10-ks. Elektriühendused toimuvad kahe M8 kinnituspoltiga positiivse väljundi jaoks, eraldatud fast-on ühendusega signaal W (pöörlemiskiirus) jaoks ning Mastervolti omanimelise ühendusega ergutusvoolu jaoks.

Asendamine Mastervolti valikus ja võrdlus

Navico Groupi pakkumises eristub Alpha Compact seeria traditsioonilistest Alpha generaatoritest (nt mudelid Alpha 24/110 või Alpha 24/150 IV) vähendatud mõõtmetega, ühepoolsete siseventilaatorite kasutamisega (mitte kahepoolsete välisventilaatoritega) ja baasversiooni mittesisoleeritud konstruktsiooniga. Universaalsete Alpha Compact versioonidega erinevalt on see VP-mudel kohe kasutatav Volvo Penta mootoritele. Kaasates eraldi müüdava Alpha Pro III laaderegulaatori (tarnitakse eraldi), pakub see süsteem võrreldes originaalgeneraatoritega kolmeastmelise laadimisalgoritmi, mis on ühilduv pliiaku ja liitiumioonakude süsteemidega, ning täieliku integratsiooni MasterBus kommunikatsiooniprotokolliga.

Expert review

Pol CONIN

Digital Manager

« High power and thermal endurance for 24V service battery banks »

The Alpha Compact 28/150 alternator for Volvo Penta is a high-performance current generation solution, specifically designed to integrate optimally with Volvo Penta D4 to D13 engines. With a nominal output of 150A at 24V (28V charge voltage), it meets the high energy demands of modern systems, particularly those equipped with Lithium-Ion battery banks. Its patented design is up to 40% lighter and 25% more compact than a standard alternator, making it a strategic asset in engine rooms where space and weight are critical.

Regarding system integration, it is imperative to emphasize that this alternator is designed to operate in tandem with the external Alpha Pro III regulator. The latter is not an option but an essential component that controls the alternator to deliver multi-stage charging (3-stage+), optimizing battery lifespan and ensuring fast, secure recharging. Field reliability is ensured by a robust design tailored for high-temperature environments, featuring a dual internal fan that requires clockwise rotation (viewed from the pulley side), a critical technical detail during installation. The integrated temperature probe allows the regulator to adjust charging to prevent overheating, thereby securing the entire system.

From an installation perspective, the Volvo Penta model is supplied with a pre-installed multi-groove pulley, simplifying assembly. It is important to note that its standard design is non-isolated (grounded to the chassis). For installations requiring galvanic isolation to protect engine electronics or prevent corrosion, Mastervolt offers specific isolation bushings (ref. 48420240). Ultimately, this alternator does not merely replace the original equipment; it represents a fundamental upgrade to the charging system, delivering superior energy output, particularly at low RPM, and proven reliability essential for offshore cruising and professional applications.

Durabilité

Facilité d'installation

Rapport performance / prix

Payment and security

Your payment information and data are processed securely.

Alpha Compact 28/150 generaator Volvo Penta

2.250,16€

2.250,16€ ~~2.734,80€~~

Complete your installation with

Complementary equipment

Batterie MLI Ultra Lithium 24/1250 - 1,25 kWh

Mastervolt

MASTERVOLT MLI Ultra Lithium 24/1250 - 1,25 kWh

Ref : 66021250

1.415,10€

1.415,10€ ~~1.500,00€~~

Mastervolt

EasyView 5 ekraan

Ref : 77010310

279,34€

279,34€ ~~318,00€~~

Répartiteur de charge 1603 IG 12/24V Battery Mate

Mastervolt

Laaduse jaotur Battery Mate 1603 IG 12/24 V

Ref : 83116035

217,27€

217,27€ ~~268,32€~~

Obsolète

Mastervolt

Mastervolt MLS 24 V 260 Ah Liitiumioon-patarei

Ref : 65020010

493,33€

493,33€ ~~551,76€~~

Frequently asked questions

Need help? Contact us

What is the output power of the Alpha Compact 28/150 alternator?

This alternator delivers a massive charging current of 150 A at 24 V, requiring mechanical power (PTO) of 8.4 kW (11.4 HP).

Is the charge regulator included with the alternator?

No, this alternator is supplied bare. Adding the external Alpha Pro III charge regulator is strictly necessary to control the field current and benefit from the three-stage smart charging.

Is this alternator compatible with lithium batteries?

Yes, the Alpha Compact series offers an excellent power-to-size ratio for ultra-fast charging of large house battery banks, including lithium, AGM, and gel technologies.

Can the Alpha Compact 28/150 alternator be installed on any marine engine?

This specific model (reference 46228152) is specially calibrated and designed to fit directly onto Volvo Penta engine mounts.

What is the weight of this equipment?

The Alpha Compact 28/150 alternator weighs 7.9 kg.

At what minimum engine RPM does the alternator start charging?

The alternator begins charging at low RPMs. The cut-in speed is 1700 RPM (alternator rotation speed).

What is the maximum supported rotation speed?

The Alpha Compact 28/150 alternator can tolerate a maximum rotation speed of up to 16,000 RPM.

How is the alternator cooled in the engine compartment?

It is equipped with an integrated dual-fan system and a patented magnetic design, allowing it to maintain optimal efficiency even in confined, high-temperature environments.

What is the maximum operating temperature?

This model is designed for demanding environments and can withstand up to 120 °C in continuous use.

Is this alternator galvanically isolated?

No, this specific Alpha Compact alternator model is not galvanically isolated.

How to connect the power output (positive cables)?

The connectivity is designed for high power with a dual M8 positive output terminal. It is imperative to use cables of appropriate cross-section to handle the 150 A.

How to retrieve the signal for the boat's tachometer?

The alternator has an isolated terminal dedicated to the W (RPM) signal to simplify the connection and reading of your tachometer.

Is a temperature sensor included?

Yes, a temperature sensor is directly built into the alternator. It communicates with the charge regulator via an RJ12 port.

How to configure the temperature sensor in the MasterAdjust software?

When configuring your system via MasterAdjust, go to the System section and set the Temp. sensor parameter to Dynamo (specific to Alpha Compact models).

Is an insulation kit required for installation?

If isolated mounting is required for your installation, you must use insulating bushings. The recommended insulation kit for the Alpha Compact 28/150 and 28/110 models is part number 48420242.

Can the alternator operate on a 12V battery bank?

No, this model is a 24V DC alternator. It is exclusively designed to charge battery banks operating at 24 volts.

How is the excitation current (field) managed?

The field current (induced) is controlled by the external Alpha Pro III regulator, which connects easily to the alternator via a dedicated Mastervolt plug.

What to do if the belt slips?

If the belt slips, it reduces load capacity and generates noise. Check pulley alignment and ensure the belt tension is correct. Using an automatic tensioner is highly recommended for these power levels.

Is the Alpha Compact alternator compatible with the MasterBus network?

The alternator itself is controlled by the Alpha Pro III charge regulator. It is this external regulator that is fully MasterBus-compatible, enabling monitoring and configuration of the charge on your marine network.

Why is my battery not charging properly with this alternator?

Several causes are possible: check that the Alpha Pro III regulator is correctly connected and functional, inspect the condition and tension of the drive belt, and ensure the battery terminals are clean and securely tightened.