Alternateur Alpha Compact 28/150 Volvo Penta

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Mastervolt

46228152

Alternatorius Alpha Compact 28/150 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 service battery banks, including lithium-ion types. Part of the manufacturer's current ultra-compact range, this model is specifically sized for direct installation as a secondary alternator 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 integrated 8-rib pulley (supplied without mounting bracket, insulating bushes, or Alpha Pro III charge regulator).

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2.250,16€

2.250,16€ ~~2.734,80€~~

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Sandėlyje

Free pickup point from 150€ in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

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Installers near you

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Support service

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Technical specifications

Serija	Alpha Compact
Nominalioji įtampa	24.0
Nominalioji srovė	150.0
Galinga	8.4
Didžiausias apsisukimų per minutę skaičius	16000.0
Įsijungimo greitis	1700
Tusčio srovė	30.0
Montavimo stilius	Saddle mount
Sukimo kryptis	Schedule
Galvaninė izoliacija	Uninsulated
Sužadinimo kontrolės tipas	External
Korpusas: temperatūros jutiklio palaikymas	Oui
Mažiausias diržinės transmisijos skersmuo	53.3
Didžiausias diržinės transmisijos skersmuo	71.1
Minimalus skriemulio perdavimo santykis	2.25
Didžiausias skridinio perdavimo santykis	3.0
Įtrauktas diržinės transmisijos skriemulys	Oui
Vėsinimo metodas	Dual integrated fans
Vėsinimo ventiliatorių skaičius	2.0
Maksimali veikimo temperatūra	120.0
Įkrovos stabdymo temperatūra	120.0
Svoris	7.9
Suprojektuota jūrinėms sąlygoms	Oui
Išėjimo gnybto dydis (mm)	M8

Detailed description

Alternatoriaus Mastervolt Alpha Compact 28/150 Volvo Penta pristatymas

Mastervolt Alpha Compact 28/150 alternatorius (kataloginis numeris 46228152) skirtas nuolatinei energijos gamybai jūrinėse ir pramoninėse aplinkose. Šis 24 VDC modelis specialiai suprojektuotas montuoti tiesiogiai prie Volvo Penta variklių D4–D13 serijų. Jis naudojamas kaip pagrindinis alternatorius arba kaip papildomas alternatorius (PTO) baterijų pakrovimui. Įrenginys tiekiamas be Alpha Pro III įkrovos reguliatoriaus, kuris būtinas išėjimo įtampai ir srovei valdyti.

Techninės charakteristikos ir techniniai duomenys

Alternatorius tiekiama 150 A srovė esant 6 000 aps./min. (25 °C temperatūroje). Įsijungimo greitis – 1 700 aps./min., leidžiantis gauti 28–30 A srovę esant 1 800 aps./min. (atitinka variklio tuščiąsias eigas). Maksimalus leidžiamas sukimosi greitis – 16 000 aps./min. Mechaninė galia (PTO) – 8,4 kW (11,4 AG), mechaninės-elektrinės konversijos efektyvumas – apie 50 %. Maksimali darbinė temperatūra – 120 °C, stebima įmontuotu temperatūros jutikliu su RJ12 jungtimi.

Mechaninė konstrukcija ir integracija

Alpha Compact 28/150 sveria 7,9 kg. Jo vidinė konstrukcija leidžia sumažinti svorį 40 % ir tūrį 25 % palyginus su standartiniais alternatoriais to paties pajėgumo. Aušinimas užtikrinamas dviem vidiniais ventiliatoriais, reikalaujant montuoti su dešiniojo sukimosi kryptimi (žiūrint nuo diržinės pavaros pusės). Šis modelis jau turi specializuotą daugiaplokštę diržinę pavarą, pritaikytą Volvo Penta varikliams, ir tvirtinamas su besisukančia atrama. Įrenginys nėra izoliuotas (neigiamas kontaktas prijungtas prie metalinio korpuso). Įrenginiams, reikalaujantiems galvaninės izoliacijos, galima įsigyti papildomą izoliacinių lizdų rinkinį (kataloginis numeris 48420240), keičiantį tvirtinimo angų diametrą nuo M10 į M8 arba nuo M12 į M10. Elektros jungtys atliekamos per du M8 strypelius teigiamam kontaktui, izoliuotą "fast-on" jungtuką signalui W (aps./min. jutikliui) ir Mastervolt specializuotą jungtį sužadinimo srovei.

Padėtis Mastervolt asortimente ir palyginimas

Navico Group asortimente Alpha Compact serija skiriasi nuo klasikinių Alpha alternatorių (pavyzdžiui, Alpha 24/110 ar Alpha 24/150 IV) sumažintu formatu, vienkryptės vidinės ventiliacijos naudojimu vietoj dvikryptės išorinės ventiliacijos ir neizoliuota bazine konstrukcija. Skirtingai nuo universalios Alpha Compact versijos, tiekiamos be diržinės pavaros, ši VP versija yra paruošta naudoti su Volvo Penta varikliais. Derinant su Alpha Pro III reguliatoriumi (parduodamas atskirai), ši sistema skiriasi nuo originalių alternatorių trimis pakopų įkrovos algoritmu, suderinamu su švino rūgšties ir ličio jonų baterijų rinkiniais, bei pilna MasterBus ryšio protokolo integracija.

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 (charge voltage 28V), it meets the high energy demands of modern systems, particularly those equipped with Lithium-Ion battery banks. Its patented design, up to 40% lighter and 25% more compact than a standard alternator, is a major strategic advantage in engine rooms where space and weight are critical.

Regarding system integration, it is imperative to highlight 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+ stages), optimizing battery lifespan and ensuring fast and secure charging. Field reliability is ensured by a robust design suited for high-temperature environments, featuring an internal dual-fan system that requires clockwise rotation (viewed from the pulley side), a critical technical detail during installation. The integrated temperature sensor allows the regulator to adjust charging to prevent overheating, thus 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 insulation sleeves (ref. 48420240). Ultimately, this alternator does not merely replace the original equipment; it represents a fundamental upgrade to the charging system, delivering superior energy production, especially at low RPM, and proven reliability essential for offshore cruising and professional applications.

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Alternatorius Alpha Compact 28/150 Volvo Penta

2.250,16€

2.250,16€ ~~2.734,80€~~

Frequently asked questions

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

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

Is the charge regulator included with the alternator?

No, this alternator is supplied bare. Adding the external Alpha Pro III charge regulator is strictly required 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, enabling 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 on 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 a dual integrated fan and features 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 integrated into the alternator. It communicates with the charge regulator via an RJ12 port.

How to configure the temperature sensor in 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 the 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, this reduces the load capacity and generates noise. Check the alignment of the pulleys 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 isn't my battery charging properly with this alternator?

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