Alfa kompaktni alternator 28/110 VP

The Mastervolt Alpha Compact 28/110 VP alternator is designed to quickly and efficiently recharge your marine battery bank. It delivers a nominal current of 110 A, making it ideal for demanding marine environments.

No, this alternator is supplied without the Alpha Pro III charge regulator. However, this regulator is essential for optimal voltage management and safe battery charging.

This model is specifically designed for electrical systems operating on a 24V DC network.

The Alpha Compact 28/110 VP alternator is specifically designed to fit perfectly on marine engines from the Volvo Penta brand, thanks to its mounting system on the stern drive arm.

It delivers 110 A at 24 V (approximately 3 kW) and requires a drive power of 6.2 kW (8.3 HP), enabling very fast charging of high-capacity battery banks.

Yes, the Alpha Compact series features a patented magnetic design and dual cooling fans. It can therefore operate safely up to a maximum temperature of 120 °C.

Despite its high performance, this alternator remains very compact and has a low weight of 7.4 kg.

The generation (or activation) speed for this model is 1400 RPM. From this RPM, it starts producing energy to recharge your batteries.

The Alpha Compact 28/110 VP alternator can support a maximum rotation speed of up to 15000 RPM.

Cooling is actively managed by an integrated dual-fan system, ensuring optimal heat dissipation even in confined spaces.

The temperature sensor is built into the alternator. It connects via a simple RJ12 connector, linking it to the charge regulator for seamless communication with the electrical system.

To ensure secure power transfer compliant with marine standards, the alternator is equipped with two M8-format positive output terminals.

No, this alternator model is not galvanically isolated. This must be considered when designing your marine electrical circuit.

The W signal, used for the tachometer, is easily retrieved via a quick connection using an insulated terminal provided for this purpose on the alternator.

The Alpha Compact 28/110 VP alternator is designed to rotate clockwise.

This specific model for Volvo Penta engines uses a gimbal arm type mount (saddle mount), providing robust and vibration-resistant installation suited for marine environments.

The excitation current (field current) is connected via a dedicated Mastervolt plug, ensuring a reliable connection with the regulator.

If isolated mounting is required, you must use insulating sleeves (reference kit 48420242) to insert on each side of the mounting holes, and add a terminal lug for the ground cable between one of the sleeves and the alternator.

An abnormal noise often comes from a mechanical issue related to the belt. It is recommended to:

Check the alignment of the pulleys. Inspect the tension of the belt. Examine the condition of the idler pulley.

It is normal for the charging current to decrease slightly when hot (up to 15% less) to protect internal components. Conversely, when cold, charging can be up to 20% higher than the nominal value.