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

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Mastervolt

46628150

Mastervolt Alpha Compact 28/150 generaator, kaasas Alpha Pro III regulaator

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 with 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€~~

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	4.2
Maksimaalne pöörlemiskiirus	16000.0
Lülitumiskiirus	1700 RPM
Seisakuvool	28.0
Montaažistiil	Gimbal arm
Pöörlemise suund	Clockwise
Galvaaniline eraldus	Non-insulated
Eksituse kontrollitavus	Negative (N-type)
Korpuse temperatuurianduri tugi	Oui
Pöördketta minimaalne läbimõõt	53.3
Pöördketta maksimaalne läbimõõt	71.1
Minimaalne rihmratas suhe	2.25
Maksimaalne rihmiku suhe	3.0
jahutusmeetod	Dual integrated fan
jahutustuulete arv	2.0
Maksimaalne töötemperatuur	120.0
Laadimise peatamise temperatuur	130.0
Kaal	7.9
Mereolukorraks konfigureeritud	Oui
Väljundterminali suurus (mm)	M8

Detailed description

Mastervolt Alpha Compact 28/150 generaator (tähis 46628150) on kõrge võimsusega 24 V laadimissüsteem, mõeldud mere- ja tööstuselektroonikaks. See mudel on ilma rihmakrauta, kasutab spetsiifilist magnetkonstrueerimist, mis vähendab ruumala 25 % ja kaalu 40 % võrreldes tavaliste generaatoritega. Toodet tarnitakse kaasasoleva välise laadimisregulaatori Alpha Pro IIIga, mis tagab täpse laadimistsükli kontrolli kõigi akutüüpide korral.

Elektromehaanilised ja termilised näitajad

See mudel toodab nimivoolu 150 A 6000 pöörde juures minutis (25 °C juures) ja tagab 28 A juba mootori pöörlemise kiirusel 1800 p/min. Generaatori süütamise pöördenurk on 1700 p/min, maksimaalne taluvus on 16000 p/min. Võimsus, mis vajalik võtmevõllilt (PTO), on 8,4 kW (11,4 hj). Jahutus toimub kahe siseventilaatori abil avatud konstruktsioonis, töötemperatuur võib ulatuda 120 °C-ni. Sisse ehitatud temperatuuriandur RJ12 ühendusega tagab aktiivse termoregulatsiooni. Ühendused sisaldavad kahte positiivset M8 väljundterminaali, eraldatud signaalühendust W mootori pöörlemiskiiruse jaoks ning Mastervolti omanimelist ühendust ergutusvoolu jaoks. Generaatori puhas kaal on 7,9 kg, pakendatud kaal 11,4 kg.

Alpha Pro III regulaator ja MasterBus integreerimine

Regulaator Alpha Pro III kontrollib väljundpinget kolmeetapilise laadimisalgoritmi (Bulk, Absorption, Float) abil. Seade kompenseerib temperatuuri ja optimeerib pli-, geeli-, AGM- ja liitiumioonakude laadimist. Absorptsiooni faas on automaatselt ajastatud (umbes 30 minutit liitiumioonakude korral) enne üleminekut hoolduspingeni. Regulaator sisaldab sisse ehitatud MasterBus kommunikatsiooniprotokolli, võimaldades pinge läviste seadistamist, laadimise andmete reaalajas jälgimist ja häirete juhtimist otse pardavõrgust.

Asukoht kataloogis ja võrdlus

Mastervolti kataloogis eristub Alpha Compact seeria klassikalisest Alpha seeriast optimeeritud võimsuse/ruumala suhte ja kütusekulu vähenduse poolest, mis on hinnanguliselt 30 %. Võrreldes konkurentidega nagu 24 V seeria Balmar XT pakub Mastervolt Alpha Compact 28/150 eelise otse tarkvaralise integreerituse MasterBus võrgustiku kaudu regulaatori kaudu, ilma vajaduseta kasutada andmete konverteerimiseks lisaühendusi. Kergem konstruktsioon on mõeldud kitsaste mootoriruumide jaoks, kus vajalik on pidev kõrge laadimisvõimsus, samas kui traditsiooniline 150 A generaator oleks liiga raske või mahukas.

Expert review

Pol CONIN

Digitaalarenduse vastutaja

« 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 facilitates 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 best suited to 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 genuine 3-stage+ smart charger (Bulk, Absorption, Float). In practice, this regulator makes all the difference: paired with the provided 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 chemistry with remarkable efficiency, particularly Lithium-Ion (Li-ion), AGM, or Gel. By pairing it with a MasterShunt on the network, centralized supervision 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 thoroughly protected against oil, moisture, and dirt. Cooling is ensured 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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Mastervolt Alpha Compact 28/150 generaator, kaasas Alpha Pro III regulaator

2.746,32€

2.746,32€ ~~3.130,80€~~

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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 intelligent 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 must be selected based on your engine's specifications (power, crankshaft pulley diameter, and desired gear 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 temperatures in the engine compartment?

Unlike standard models, the Alpha Compact series is equipped with a highly efficient dual internal fan. This allows it to maintain optimal performance with an operating temperature up to 120 °C.

What is the maximum tolerated rotation speed for this model?

The alternator requires a priming speed of 1700 RPM to start 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 react 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 damage.

Should I install a temperature sensor on my batteries?

Yes, for lead-acid batteries (Gel, AGM, flooded), it is highly recommended to install the included temperature sensor. It adjusts the charge 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, you must choose 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 bushings (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 regulator to a MasterShunt?

Yes. By connecting the regulator and the MasterShunt on the same MasterBus network, the regulator 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 too much torque and causes the belt to slip, you can enable 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 (clockwise direction).

What to do if the Alpha Pro III regulator flashes?

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

How does temperature compensation work for a 24V system?

The regulator 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.