Alternateur Alpha Compact 28/150, régulateur Alpha Pro III inclus

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Mastervolt

46628150

Alternatorius Alpha Compact 28/150, įkrovos reguliatorius Alpha Pro III įtrauktas

The Mastervolt Alpha Compact 28/150 alternator (24 V / 150 A), from the current high-performance range, delivers optimal charging current even at low RPMs for demanding battery banks, including Lithium-ion. Its control via the Alpha Pro III regulator ensures a three-stage charging cycle and native integration into the MasterBus monitoring network.

Includes: Alpha Compact 28/150 alternator, Alpha Pro III charge regulator, battery temperature sensor (supplied without pulley).

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2.746,32€

2.746,32€ ~~3.130,80€~~

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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

Request a quote

Installers near you

through our network of certified installers

Find an installer

Support service

Choose additional assistance for installation

Technical specifications

Serija	Alpha Compact
Nominalioji įtampa	24.0
Nominalioji srovė	150.0
Galinga	4.2
Didžiausias apsisukimų per minutę skaičius	16000.0
Įsijungimo greitis	1700 RPM
Tusčio srovė	28.0
Montavimo stilius	Tiller pilot arm
Sukimo kryptis	Clockwise
Galvaninė izoliacija	Non-insulated
Sužadinimo kontrolės tipas	Negative (N-type)
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
Vėsinimo metodas	Dual integrated fans
Vėsinimo ventiliatorių skaičius	2.0
Maksimali veikimo temperatūra	120.0
Įkrovos stabdymo temperatūra	130.0
Svoris	7.9
Suprojektuota jūrinėms sąlygoms	Oui
Išėjimo gnybto dydis (mm)	M8

Detailed description

Mastervolt Alpha Compact 28/150 (kataloginis numeris 46628150) alternatorius yra 24 V didelės galios įkrovimo sistema, skirta jūrinėms ir pramoninėms elektros sistemoms. Tiekiamas be diržinės pavaros, šis modelis naudoja specialią magnetinę konstrukciją, kuri sumažina tūrio 25 % ir svorio 40 % palyginus su įprastais alternatoriais. Jis tiekiamas su išoriniu Alpha Pro III įkrovos reguliatoriumi, užtikrinančiu tikslų baterijų komplekto įkrovos ciklo valdymą.

Elektromechaniniai ir terminiai parametrai

Šis modelis generuoja 150 A srovę esant 6000 aps./min. (25 °C temperatūroje) ir užtikrina 28 A srovės gamybą jau esant variklio tuščiajai eigai 1800 aps./min. Įsijungimo greitis yra 1700 aps./min., o maksimalus greitis siekia 16000 aps./min. Mechaninė galia, reikalinga variklio atšakai (PTO), yra 8,4 kW (11,4 AG). Aušinamas dvigubu vidiniu ventiliatoriumi atviroje konstrukcijoje, alternatorius atlaiko iki 120 °C darbinę temperatūrą. Įmontuotas temperatūros jutiklis su RJ12 jungtimi užtikrina aktyvią termoreguliaciją. Jungčių komplekte yra dvi teigiamos M8 išvados, atskirta W tipo signalo jungtis tachometrui ir Mastervolt nuosavybės tipo jungtis sužadinimo srovei. Alternatoriaus svoris – 7,9 kg, o bendra pakuotės masė – 11,4 kg.

Alpha Pro III reguliatorius ir MasterBus integracija

Alpha Pro III reguliatorius valdo išėjimo įtampą naudodamas trijų pakopų įkrovos algoritmą (Bulk, Absorption, Float). Šis įrenginys kompensuoja temperatūrą ir optimizuoja švino rūgšties, Gel, AGM ir ličio jonų baterijų įkrovimą. Absorbcijos fazė automatiškai laiko (apie 30 minutes ličio jonų technologijai) prieš perėjimą į palaikymo įtampą. Šis reguliatorius natyviai integruoja MasterBus ryšio protokolą, leidžiantį konfigūruoti įtampos slenksčius, stebėti įkrovos duomenis realiuoju laiku ir valdyti aliarmus tiesiogiai iš laivo tinklo.

Padėtis asortimente ir palyginimas

Mastervolt kataloge Alpha Compact serija skiriasi nuo klasikinės Alpha serijos optimizuotu galios/užimamo tūrio santykiu ir 30 % mažesnėmis degalų sąnaudomis. Lyginant su konkurentų modeliais, pvz., 24 V serija Balmar XT, Mastervolt Alpha Compact 28/150 siūlo tiesioginę programinės įrangos integraciją per reguliatoriaus MasterBus tinklą, nereikalaujant papildomos duomenų konvertavimo brangos. Jo lengvesnė konstrukcija skirta specifiškai variklio skyriams, kur reikalinga didelė nuolatinė įkrovimo galia, o 150 A alternatorius būtų per sunkus ar per didelio tūrio.

Expert review

Pol CONIN

Digital Manager

« Compact power and intelligent MasterBus regulation for 24V systems »

The Mastervolt Alpha Compact 28/150 alternator represents a major evolution for embedded power architectures requiring high charging capacity at 24V. Delivering a nominal current of 150 amperes, its true operational advantage lies in its ability to provide very high power even at low RPM or idle speed—a critical requirement for modern marine applications. Thanks to a patented magnetic design, it is up to 40% lighter (7.9 kg net for the alternator alone) and 25% more compact than a conventional model of equivalent power. Its reduced footprint greatly simplifies integration as a secondary alternator (PTO). Note that this specific reference (46628150) is supplied without a pulley, allowing the installer to select the multi-groove interface that exactly matches the marine engine belt.

The strategic value of this system lies in the included Alpha Pro III regulator, which transforms this power block into a true 3-stage+ smart charger (Bulk, Absorption, Float). In practice, this regulator makes all the difference: paired with the supplied temperature probe, it dynamically adjusts voltage to protect battery banks from overheating and optimize charge cycles. Fully configurable and natively compatible with the MasterBus protocol, it integrates seamlessly into onboard networks and manages high-acceptance chemistries with remarkable efficiency, particularly Lithium-Ion (Li-ion), AGM, or Gel. By pairing it with a MasterShunt on the network, centralized monitoring and surgical-precision energy management are guaranteed.

Designed for the harsh conditions of engine rooms, the Alpha Compact features internal electronics and heavy-duty wiring extensively protected against oil, moisture, and dirt. Cooling is provided by a dual internal fan, supported by active thermal protection that modulates performance to preserve the equipment in high ambient temperature environments. This alternator-regulator combination is the solution of choice for yachts and professional vessels requiring maximum electrical autonomy and ultra-fast charging. It delivers OEM-level reliability while optimizing mechanical efficiency, enabling up to a 30% reduction in fuel consumption related to power generation.

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Alternatorius Alpha Compact 28/150, įkrovos reguliatorius Alpha Pro III įtrauktas

2.746,32€

2.746,32€ ~~3.130,80€~~

Frequently asked questions

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What is included in the box when purchasing this alternator?

The packaging includes:

The Alpha Compact 28/150 alternator (delivered without pulley)The Alpha Pro III smart charge regulatorAn oil-resistant cable harness (1.5 m)A battery temperature sensor

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

This high-performance alternator delivers a nominal current of 150 A at 24V (at 6000 RPM), corresponding to an electrical power output of 3.6 kW (the required mechanical power being 8.4 kW). It can provide 28 A as early as 1800 RPM.

Is this alternator compatible with lithium batteries?

Yes, absolutely. With the included Alpha Pro III regulator, charging is perfectly suited to all battery types, including lithium-ion batteries, as well as open lead, Gel, and AGM models.

Is the alternator supplied with its mounting pulley?

No, this alternator is supplied without a pulley. The pulley selection must be made according to your engine’s specifications (power, crankshaft pulley diameter, and desired reduction ratio).

What is the role of the Alpha Pro III regulator supplied with the alternator?

The Alpha Pro III regulator converts the alternator into a smart charger. It provides a 3-stage+ charge (Bulk, Absorption, Float), compensates voltage based on battery temperature, and protects the system by reducing power in case of overheating.

How is the alternator protected against extreme engine-room temperatures?

Unlike standard models, the Alpha Compact series features a dual internal fan with high efficiency. This allows it to maintain optimal performance at operating temperatures up to 120 °C.

What is the maximum allowable rotation speed for this model?

The alternator requires a starting speed of 1700 rpm to begin charging, and it can withstand a maximum rotation speed of up to 16,000 rpm.

Can I integrate this alternator with my existing MasterBus network?

Yes, the Alpha Pro III regulator is natively compatible with the MasterBus network. It features two RJ-45 data ports, enabling seamless communication with other devices in your electrical installation.

What is the weight of the Alpha Compact alternator?

The alternator stands out for its exceptional power-to-weight ratio, weighing only 7.9 kg.

How does the system respond in case of alternator overheating?

The regulator continuously monitors temperature. If the alternator reaches 85 °C, the regulator linearly reduces charging power. If the temperature climbs to 120 °C, it cuts charging completely to prevent any damage.

Should I install a temperature sensor on my batteries?

Yes, for lead-acid batteries (Gel, AGM, flooded), it is strongly recommended to install the included temperature sensor. It allows adjusting the charging voltage and prevents thermal overcharging. Note that this sensor is not required for lithium-ion batteries.

Can I use this model to charge a 12V battery bank?

No, the Alpha Compact 28/150 model is exclusively designed for 24V DC service battery banks. For a 12V system, select a model from the 14V range.

What type of mechanical mounting is used on this alternator?

This specific model is designed for mounting on a stern drive arm, which is a very common standard on many marine engines.

Does the Alpha Compact 28/150 alternator have galvanic isolation?

By default, this model is not galvanically isolated. However, if your installation requires an isolated mounting (for example on an aluminum hull), insulating sleeves (optional kit) can be used during installation.

What are the direct electrical connections on the alternator?

The alternator is equipped with:

Two M8 positive output terminalsA connection for the W signal (tachometer)A Mastervolt plug for the field currentAn RJ12 port to connect the temperature sensor

Is it possible to connect the controller to a MasterShunt?

Absolutely. By connecting the controller and the MasterShunt to the same MasterBus network, the controller will adjust its charging voltage based on the actual voltage measured at the battery terminals, compensating for voltage losses in the cables.

How to prevent the alternator belt from slipping under high load?

If the alternator demands excessive torque and causes the belt to slip, you can activate the Power Curve function via the MasterAdjust interface. This reduces the charging current and minimizes the mechanical load on the engine.

In which direction should this alternator rotate?

The Alpha Compact 28/150 alternator is designed to operate with a clockwise rotation direction.

What to do if the Alpha Pro III regulator flashes?

The LED indicators on the regulator flash as alarm signals. For example, 3 short flashes every 2 seconds indicate that the field current is too high, while 2 flashes indicate that the battery voltage is too high.

How does temperature compensation work for a 24V system?

The controller automatically adjusts the charging voltage based on battery temperature. For a 24V bank, compensation is -60 mV per degree Celsius (calculated from -30 mV/°C for 12V), ensuring safe charging and extending battery life.