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

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Mastervolt

46628150

Alternators Mastervolt Alpha Compact 28/150, regulatoris Alpha Pro III iekļauts

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€~~

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

Find an installer

Service d'assistance

Choose additional assistance for installation

Technical specifications

Sērija	Alpha Compact
Nominālais spriegums	24.0
Nominālā strāva	150.0
Jauda	4.2
Maksimālais griešanās ātrums	16000.0
Ieslēgšanās ātrums	1700 RPM
Darbības strāva tukšgaitā	28.0
Montāžas stils	Gimbal arm
Rotācijas virziens	Clockwise
Galvāniskā izolācija	Non-insulated
Ierosmes kontroles tips	Negative (N-type)
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
Dzesēšanas metode	Dual integrated fans
Dzesēšanas ventilatoru skaits	2.0
Maksimālā darba temperatūra	120.0
Kārbas pārtraukšanas temperatūra	130.0
Svars	7.9
Izstrādāts jūras videi	Oui
Izvades termināļa izmērs (mm)	M8

Detailed description

Mastervolt Alpha Compact 28/150 alternators (preču numurs 46628150) ir augstas jaudas 24 V lādēšanas sistēma, paredzēta jūras un rūpnieciskajām elektrosistēmām. Piegādāts bez šķīvja, šis modelis izmanto specifisku magnētisko konstrukciju, kas samazina tā tilpumu par 25 % un svaru par 40 % salīdzinājumā ar tradicionālajiem alternatoriem. Komplektā iekļauts ārējais lādēšanas regulators Alpha Pro III precīzai visu bateriju tipu lādēšanas cikla kontrolei.

Elektromehāniskās un termiskās īpašības

Šis modelis nodrošina nominālo strāvu 150 A pie 6000 apgr./min (25 °C temperatūrā) un nodrošina 28 A jau pie dzinēja rāpšanās 1800 apgr./min. Iedarbināšanas ātrums ir 1700 apgr./min, ar toleranci līdz 16000 apgr./min. Mehāniskā jauda, kas nepieciešama noņemšanai no dzinēja (PTO), ir 8,4 kW (11,4 ZS). Dzesēts ar diviem iekšējiem ventilatoriem atklātā konstrukcijā, alternators iztur darba temperatūru līdz 120 °C. Iekšējais temperatūras sensors ar RJ12 savienojumu nodrošina aktīvu termisko regulāciju. Savienojumi ietver divas pozitīvās M8 izvades, izolētu signāla savienojumu W rādītājam un Mastervolt īpašo savienojumu ierosmes strāvai. Alternatora tīrais svars ir 7,9 kg, kopējais iepakojuma svars — 11,4 kg.

Regulators Alpha Pro III un MasterBus integrācija

Regulators Alpha Pro III kontroles iziešanas spriegumu ar trīsposmu lādēšanas algoritmu (Bulk, Absorption, Float). Ierīce kompensē temperatūru un optimizē svina-skābes, Gel, AGM un litija-jona bateriju lādēšanu. Absorbcijas fāze tiek automātiski noteikta (aptuveni 30 minūtes litija-jona baterijām) pirms pārejas uz uzturēšanas spriegumu. Regulators iekļauj MasterBus komunikācijas protokolu, ļaujot konfigurēt sprieguma sliekšņus, uzraudzīt lādēšanas datus reālajā laikā un pārvaldīt trauksmes tieši no borta tīkla.

Pozicionēšana sortimentā un salīdzinājums

Katalogā Mastervolt Alpha Compact sērija atšķiras no klasiskās Alpha sērijas ar optimizētu jaudas/izmēra attiecību un līdz 30 % mazāku degvielas patēriņu. Salīdzinot ar konkurentiem, piemēram, 24 V sērijas Balmar XT, Mastervolt Alpha Compact 28/150 piedāvā priekšrocību tiešu programmatūras integrāciju pateicoties regulatora MasterBus tīkla atbalstam, nepieciešot papildu datu pārveides vārtejas. Vieglā konstrukcija to paredz īpaši šauriem dzinēju nodalījumiem, kur nepieciešama augsta nepārtraukta lādēšanas jauda, kur tradicionāls 150 A alternators būtu pārāk smags vai lielu izmēru.

Expert review

Pol CONIN

Digitālās attīstības atbildīgais

« 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 under 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 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 genuine 3-stage+ smart charger (Bulk, Absorption, Float). In practice, this regulator makes all the difference: paired with the supplied temperature sensor, it dynamically adjusts voltage to protect battery banks from overheating and optimize charging cycles. Fully configurable and natively compatible with the MasterBus protocol, it integrates seamlessly with onboard networks and manages high-acceptance chemistries with exceptional 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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Alternators Mastervolt Alpha Compact 28/150, regulatoris Alpha Pro III iekļauts

2.746,32€

2.746,32€ ~~3.130,80€~~

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Frequently asked questions

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What does the box contain 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 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+ charging process (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 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 with an 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 any 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 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 gland arm, which is a very common standard on many marine engines.

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

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

What are the direct 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 probe

Is it possible to connect the regulator to a MasterShunt?

Absolutely. 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 heavy 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 must this alternator rotate?

The Alpha Compact 28/150 alternator is designed to operate with a clockwise rotation (right-hand rotation).

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 the battery's temperature. For a 24V bank, compensation is -60 mV per degree Celsius (calculated from -30 mV/°C for a 12V system), ensuring safe charging and extending battery life.