Alternátor Alpha Compact 14/120 s regulátorem Alpha Pro III

The alternator is supplied complete with the Alpha Pro III smart charge regulator, a battery temperature sensor and the oil-resistant cable harness required for installation.

This alternator is designed to deliver high performance even at low RPM. It provides a current of 70 A at engine idle and has a maximum rated capacity of 120 A at cruising speed.

Yes, thanks to the included Alpha Pro III regulator, this system is fully compatible with lithium-ion batteries, as well as traditional technologies such as lead-acid, gel, and AGM.

The Alpha Pro III regulator converts a standard alternator into a genuine 3-stage (Bulk, Absorption, Float) smart battery charger. It optimizes charging speed, protects batteries from overcharging, and compensates voltage based on temperature.

The system uses an included battery temperature probe to be mounted on your battery bank. The controller automatically adjusts the charging voltage with precise compensation of -30 mV/°C, protecting your batteries from overheating and extending their lifespan.

Yes, the Alpha Pro III controller has two RJ-45 ports that allow direct connection to the MasterBus CAN-bus network. This enables full monitoring and configuration from compatible bridge displays.

The Alpha Compact range has been specifically designed for the confined spaces of modern engines. This model features a compact footprint and weighs only 6.7 kg, making handling and installation significantly easier.

The Alpha Compact 14/120 alternator is designed to withstand confined and very hot marine environments. Its patented magnetic design allows it to operate at temperatures up to 120 °C without critical performance loss.

For a 12 V battery bank, the regulator defaults to a voltage of 14.25 V for the Bulk and Absorption phases, and 13.25 V for the Float phase. These values are fully adjustable via the MasterBus network.

The connection for the W signal, essential for the tachometer on the dashboard to function, is made very simply via a dedicated quick insulated terminal directly on the alternator body.

Yes, if your installation requires isolated mounting from the ground (common on aluminum hulls), you can use insulating bushes (available as an option) to insert on each side of the mounting holes to electrically isolate the alternator from the engine block.

It is essential to use the wiring loom provided with the Alpha Pro III regulator. This specific cable is hydrocarbon-resistant and ensures a reliable connection for the excitation current and sensors.

If the LED indicates 3 short flashes every 2 seconds, this signals an overcurrent in the excitation circuit. The regulator stops charging for safety and retries every 5 seconds. Check the wiring between the regulator and the alternator to rule out any short circuit.

The Alpha Compact alternator is equipped with a high-performance cooling system featuring a dual-fan design. This design allows it to maintain a high level of power output even in poorly ventilated engine compartments.

No, the Alpha Compact 14/120 model is specifically wound and designed for 12 V battery banks. For a 24 V installation, you should consider the Mastervolt 28/xx series models (such as the 28/110 or 28/150).

The Alpha Compact 14/120 alternator is equipped with two robust M8-type positive output terminals. This allows for load distribution and ensures optimal and secure power transfer to your battery bank.

Yes, via the MasterBus network, the controller can communicate directly with a MasterShunt battery monitor. This allows the controller to use the shunt’s ultra-precise data (temperature and actual terminal voltage) to fine-tune the charging cycle as accurately as possible.

No, Lithium-ion batteries do not require external temperature compensation for charging. The temperature probe provided is only necessary if you are charging battery banks of lead-acid, gel, or AGM type.

Thanks to the integrated temperature sensor in the Alpha Compact alternator, the regulator will automatically reduce output power from 85 °C and will stop charging completely if the temperature reaches 120 °C, to protect the equipment autonomously.

Battery type configuration (flooded lead-acid, gel, AGM or lithium) is easily set via the MasterAdjust software or a compatible display using the MasterBus network. This allows perfect adaptation of charge algorithms to your battery bank specifications.