Alternateur Alpha Compact 28/150 Volvo Penta

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Mastervolt

46228152

Alternators 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 house battery banks, including lithium-ion types. Part of the manufacturer’s ultra-compact current range, this model is specifically sized for direct mounting 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, insulation bushings, and Alpha Pro III charge regulator).

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2.250,16€

2.250,16€ ~~2.734,80€~~

TTC Piegāde aprēķināta maksājuma brīdī.

Noliktavā

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

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of certified installers

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Service d'assistance

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Technical specifications

Sērija	Alpha Compact
Nominālais spriegums	24.0
Nominālā strāva	150.0
Jauda	8.4
Maksimālais griešanās ātrums	16000.0
Ieslēgšanās ātrums	1700
Darbības strāva tukšgaitā	30.0
Montāžas stils	Mounting on seat
Rotācijas virziens	Schedule
Galvāniskā izolācija	Uninsulated
Ierosmes kontroles tips	External
Korpusa temperatūras sensora atbalsts	Oui
Minimālais pulijas diametrs	53.3
Maksimālais pulijas diametrs	71.1
Minimālais virves attiecības rādītājs	2.25
Maksimālais blokšķēves attiecība	3.0
Pulija iekļauta komplektācijā	Oui
Dzesēšanas metode	Dual integrated fan
Dzesēšanas ventilatoru skaits	2.0
Maksimālā darba temperatūra	120.0
Kārbas pārtraukšanas temperatūra	120.0
Svars	7.9
Izstrādāts jūras videi	Oui
Izvades termināļa izmērs (mm)	M8

Detailed description

Apraksts par alternatoru Mastervolt Alpha Compact 28/150 (atbilstība Volvo Penta)

Alternators Mastervolt Alpha Compact 28/150 (preces numurs 46228152) ir paredzēts nepārtrauktai elektroenerģijas ražošanai jūras un rūpnieciskajā vidē. Šis 24 VDC modelis ir specifiski izstrādāts, lai tieši montētu uz Volvo Penta dzinējiem no D4 līdz D13 sērijām. To var izmantot kā galveno alternatoru aizvietotāju vai kā papildu alternatoru (spēka ņemšanas punkts), kas paredzēts apkalpes bateriju lādēšanai. Ierīce tiek piegādāta bez Alpha Pro III lādēšanas regulatora, kas ir neatņemama sastāvdaļa, lai pārvaldītu spriegumu un izvades strāvu.

Tehniskie rādītāji un pamatdati

Alternators nodrošina nominālo lādēšanas strāvu 150 A pie 6 000 apgr./min (25 °C temperatūrā). Ieslēgšanās ātrums ir 1 700 apgr./min, nodrošinot 28 līdz 30 A strāvu pie 1 800 apgr./min (atbilst dzinēja tukšgaitas ātrumam). Maksimāli pieļaujamais rotācijas ātrums ir 16 000 apgr./min. Mehāniskās jaudas patēriņš (PTO) ir 8,4 kW (11,4 ZS), ar mehānisko- elektrisko pārveidošanas lietderības koeficientu ap 50 %. Maksimālā darba temperatūra ir 120 °C, ko uzrauga iebūvēta temperatūras zonde ar RJ12 savienojumu.

Mehāniskā konstrukcija un integrācija

Alpha Compact 28/150 sver 7,9 kg. Tā iekšējā arhitektūra nodrošina 40 % svara samazinājumu un 25 % tilpuma samazinājumu salīdzinājumā ar līdzīgiem alternatoriem. Dzesēšana tiek nodrošināta ar diviem iekšējiem ventilatoriem, kas prasa montāžu ar pulksteņrādītāja virzienā notiekošu rotāciju (skatoties no pulksteņa puses). Šis modelis ir aprīkots ar sērijas daudzrievu pulksteni, kas piemērots Volvo Penta dzinējiem, un tiek nostiprināts ar pagriežamo plecu. Ierīce nav izolēta (negatīvais izvads ir savienots ar metālisko korpusu). Ja nepieciešama galvaniskā izolācija, ir pieejams papildu izolējošo ielikņu komplekts (preces numurs 48420240), kas maina nostiprināšanas atveru diametru no M10 uz M8 vai no M12 uz M10. Elektriskās savienojuma nodrošina divi M8 stieņi pozitīvajam izvadam, izolēts fast-on savienotājs signālam W (apgriezienu skaitītājs) un Mastervolt īpašais savienojums ierosmes strāvai.

Pozicionēšana Mastervolt gama un salīdzinājums

Navico Group piedāvājumā Alpha Compact sērija atšķiras no klasiskajiem Alpha alternatoriem (piemēram, Alpha 24/110 vai Alpha 24/150 IV) ar samazinātu izmēru, vienvirziena iekšējo ventilatoru izmantošanu vietā ārēja divvirziena ventilatora un pamata konstrukciju bez izolācijas. Atšķirībā no universālajām Alpha Compact versijām, kas tiek piegādātas bez pulksteņa, šī VP versija ir gatava lietošanai tieši Volvo Penta dzinējiem. Kopā ar Alpha Pro III regulatoru (pārdodams atsevišķi), šī sistēma atšķiras no oriģinālajiem alternatoriem ar 3-stāvju lādēšanas algoritmu, kas ir savietojams ar svina-skābes un litija jonu bateriju parkiem, nodrošinot arī pilnīgu integrāciju MasterBus komunikācijas protokolā.

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 power 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 essential to note that this alternator is designed to operate in tandem with the external Alpha Pro III regulator. The latter is not an option but a critical component that controls the alternator to deliver multi-stage charging (3-stage+), optimizing battery lifespan and ensuring fast, 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 crucial technical detail during installation. The integrated temperature sensor allows the regulator to adjust charging to prevent overheating, thereby securing the entire system.

From an installation perspective, the Volvo Penta model comes 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 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 output, particularly at low RPM, and proven reliability essential for offshore cruising and professional applications.

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Alternators Alpha Compact 28/150 Volvo Penta

2.250,16€

2.250,16€ ~~2.734,80€~~

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Frequently asked questions

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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 8.4 kW (11.4 HP) of mechanical power (PTO).

Is the charge regulator supplied 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 service 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.

From what 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 harsh 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 positive M8 output terminal. It is imperative to use appropriately sized cables 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 in 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 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 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 fastened.