Mastervolt Alternateur Alpha compact 24V 150A 46628150

MASTERVOLT Alternateur Alpha Compact 28/150 (sans poulie) - photo 2

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Mastervolt

46228150

Alternador Alpha Compact 28/150 (sense politja)

The Mastervolt Alpha Compact 28/150 alternator (24 V / 150 A) delivers high-efficiency charging, capable of providing a continuous current of 28 A from 1800 RPM. Designed for direct integration with the Alpha Pro III regulator via the MasterBus network, it features dual fans and a temperature sensor to optimize cooling in marine environments.

Includes: Alpha Compact 28/150 alternator (delivered without pulley).

Public priceGet pro pricing

2.281,93€

2.281,93€ ~~2.734,80€~~

IVA inclòs Expedició calculada en el moment del pagament.

En estoc

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

Service d'assistance

Choose additional assistance for installation

Technical specifications

Sèrie	Alpha Compact
Tensió nominal	24.0
Corrent nominal	150.0
Potència	4.2
Velocitat de rotació màxima	15000.0
Velocitat d'engegada	1300
Corrent en repòs	28.0
Estil de muntatge	Custom (to be adapted)
Sentit de rotació	Bidirectional
Aïllament galvànic	Isolated from ground
Tipus de control d'excitació	External
Suport per sensor de temperatura de la carcassa	Oui
Diàmetre mínim de politja	48.1
Diàmetre màxim de politja	89.0
Relació mínima de politja	2.5
Relació de politja màxima	3.5
Mètode de refrigeració	Internally optimized thermal cooling
Nombre de ventiladors de refrigeració	2.0
Temperatura màxima de funcionament	120.0
Pes	7.9
Dissenyat per a entorn marí	Oui
Alternator Air Flow Direction	Dual-flow internal (side suction)
Alternator Bearing Lubrication	High-temperature grease, lifetime
Alternator Belt Alignment Tolerance	Strict (laser alignment recommended)
Alternator Case Design	Open for maximum ventilation
Alternator Diode Bridge Type	High-power avalanche diodes
Alternator Efficiency Class	High efficiency (>60%)
Alternator Field Terminal	Yes
Alternator Magnetic Technology	Claw-pole rotor
Alternator Number Of Phases	3
Alternator Rotor Balancing	High-precision dynamic balancing
Alternator Rpm Signal W	Yes
Alternator Stator Winding	In irons
Alternator Temp Sensor Included	No
Alternator Terminal D Plus	Yes
Bearing Type	Sealed high-temperature ball bearings
Belt Drive Compatibility	Multi-groove belt (Serpentine)
Algorisme de càrrega	3 steps
Charge Voltage	28
Tipus de motor compatible	Inboard marine engines
External Regulator Model	Mastervolt Alpha Pro
External Regulator Required	Yes
Material de la carcassa	Aluminum
Classe d'aïllament	Class H
Grau de protecció IP	IP20
Optimitzat per a bateries de liti	Yes
Sense manteniment	Yes
Corrent de sortida màxim	150
Negative Stud Size	M8
Negative Terminal	Dowell
Positive Stud Size	M8
Positive Terminal	Dowell
Recommended Cable Gauge 5m	50
Calibre de fusible recomanat	200
Protecció contra inversió de polaritat	No
Salt Spray Protection	Yes
Protecció contra curtcircuits	Yes
Químiques de bateria compatibles	Lithium-Ion, Lead, Gel, AGM
Protecció tèrmica	Yes
Resistència a vibracions	High (marine-grade design)

Detailed description

L'alternador Alpha Compact 28/150 de Mastervolt és una solució de càrrega d'alta rendiment dissenyada per a embarcacions equipades amb parcs de bateries de gran capacitat que funcionen en 24V. Amb un corrent de sortida de 150 amperes, aquest model garanteix una recàrrega ràpida i òptima, fins i tot a baix règim de motor.

Disseny compacte i relació potència/pes

Diferenciant-se de la sèrie Alpha clàssica pel seu reduït volum, la gamma Alpha Compact ha estat desenvolupada per integrar-se en espais motors restringits. Amb un pes de només 7,9 kg, aquest model 28/150 ofereix una densitat de potència excepcional. La seva arquitectura interna afavoreix un refredament tèrmic eficient, permetent sostenir corrents de càrrega elevats de manera contínua sense sobreescalfament de la generatriu.

Integració de sistema i compatibilitat

Aquest model específic es lliura sense politja, oferint així la flexibilitat tècnica necessària per adaptar una politja a mida, com ara una corretja multiestries (serpentina), perfectament alineada amb la configuració mecànica del vostre motor. Per aprofitar-ne al màxim les capacitats i assegurar la seguretat de les bateries (especialment els parcs de liti-ion), aquest alternador ha d'associar-se obligatòriament a un regulador de càrrega extern com el Mastervolt Alpha Pro, que garanteix un cicle de càrrega intel·ligent en 3 etapes i una protecció tèrmica rigorosa del sistema.

Expert review

Pol CONIN

Responsable digital

« Maximum power density for high-capacity battery banks »

The Mastervolt Alpha Compact 28/150 alternator is a must-have choice for modern vessels, particularly those equipped with Lithium-Ion battery banks requiring very high charge acceptance currents. Its ability to deliver 150A at 24V in such a compact format (7.9 kg) addresses the space constraints of today's engine rooms. Being supplied without a pulley is a genuine technical advantage for professional installers, allowing precise adaptation to a serpentine belt drive system, essential for transferring the required mechanical power without risk of slippage. Paired with the Alpha Pro regulator, it turns the propulsion engine into a highly efficient and secure DC power generator.

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Alternador Alpha Compact 28/150 (sense politja)

2.281,93€

2.281,93€ ~~2.734,80€~~

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Frequently Asked Questions

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What is the weight of this marine alternator?

This alternator weighs 7.9 kg.

Why is this alternator supplied without a pulley?

This alternator is supplied without a pulley to allow you to install the model that exactly matches your belt type and engine configuration.

What type of belt is recommended for this model?

To handle the 150A load power, a multi-groove (serpentine) belt is recommended to prevent slippage and ensure optimal power transmission.

Do I need an external regulator to operate this alternator?

Yes, this alternator is designed to be paired with an external charge regulator, such as the Mastervolt Alpha Pro, to ensure optimal charging and protect your batteries.

Is this alternator compatible with lithium batteries?

Yes, this alternator is compatible with lithium batteries when paired with a suitable external charge regulator.

Does the alternator charge efficiently at low engine RPM?

Yes, the Alpha Compact range is designed to deliver high charging current even at low engine RPM.

Can the Alpha Compact alternator replace my original alternator?

Yes, it can replace your original alternator or be installed as a second alternator dedicated to the service battery bank. Since this model is supplied without a pulley, you will need to provide a pulley suitable for your installation.

How does the alternator manage heat generated by high charging loads?

The alternator is equipped with internal fans that provide effective cooling. This allows it to sustain a continuous charging current of 150 A without overheating.

What is the battery bank voltage compatible with this model?

This specific model (28/150) is designed to charge battery banks operating at 24V.

What is the maximum current output of this equipment?

The alternator delivers a maximum output current of 150 amperes.

Is it easy to install in a small engine compartment?

Yes, the Alpha Compact range is designed with a compact footprint to fit in tight engine spaces.

Can it be used with lead-acid, gel or AGM batteries?

Yes, it is compatible with these battery technologies (lead-acid, gel, AGM) as well as with Lithium. The external regulator will adapt the charging profile to your battery type.

Is specific ventilation required in the engine compartment?

Yes, good ventilation in the engine compartment is recommended to expel hot air generated during operation and optimize alternator performance.

What is the main difference between the classic Alpha series and the Alpha Compact series?

The main difference lies in the format. The Compact series offers reduced footprint and lighter weight compared to the classic series, while maintaining high charging power.

Is the Alpha Pro charge regulator included in the box?

No, the Mastervolt Alpha Pro III charge regulator is not included in the box for this model. The alternator is however sold without a pulley.

Is it compatible with marine engines of all brands?

It is compatible with many marine engines, but requires adaptation. You will need to provide a specific mounting bracket for your engine as well as a suitable pulley, as this alternator is sold without a pulley.

Is the alternator protected against the marine environment?

Yes, this alternator is designed to withstand the demanding conditions of the marine environment.

How to connect the alternator to the external regulator?

The connection is made via a dedicated cable harness. It is imperative to strictly follow the wiring diagram provided by Mastervolt during installation.

What is the advantage of a 150A alternator for a 24V system on a boat?

A 150A alternator in a 24V system delivers high power, allowing rapid charging of large-capacity battery banks. This reduces engine runtime required for charging and efficiently powers high-power electrical consumers onboard.