SKU:
Mastervolt 48612130
€ 1.788,19
1-2 weeks delivery time
-
+
The Mastervolt 48612130 Alpha Alternator 12/130 is a high-output, fan-cooled 12V alternator delivering 130A of charging current. Specifically designed for efficient battery charging at low engine RPMs, it is ideal for marine and off-grid applications. It comes standard with the Alpha Pro III charge regulator for intelligent multi-stage charging, battery protection, and improved performance. Features include forced-air cooling, multi-groove pulley compatibility, and full electrical isolation. Suitable for all engine types using customized brackets.
- Description
- Ask a Question
-
Mastervolt 48612130 – Alpha Alternator 12/130 with Alpha Pro III Charge Regulator (130A, 12V, Multi-RPM Charging, Isolated)
The Mastervolt Alpha 12/130 is a robust, high-performance alternator designed for reliable and efficient charging of both starter and service batteries, even at idle engine speeds. With a charging current of 130A and standard delivery of the Alpha Pro III charge regulator, it provides intelligent multi-stage charging to maximize battery lifespan and performance. Its fan-assisted cooling system ensures stable output even in engine compartments exceeding 40°C.
Compatible with Battery Mate or battery isolators, it can charge multiple battery banks simultaneously. Engineered for marine and mobile environments, the alternator features full electrical isolation, multiple mounting positions, and optional multigroove pulleys to fit a wide range of installations. An excellent choice for use as a primary or secondary alternator, especially in generator-free power systems.
Key Features
- 130 A charging current at 12 V DC
- Delivered with Alpha Pro III charge regulator (standard)
- Fast & efficient charging even at low RPM
- Forced air cooling – reliable output above 40°C
- Electrically isolated – safe for multi-bank charging systems
- Optional multigroove pulley for high-performance belts
- Supports charging of 2–3 battery sets via Battery Mate or isolator
- Multiple mounting options – six o’clock standard position
- Fits a wide range of engines; custom brackets available
General Specifications
Specification Value Total Charge Current 130 A Nominal Voltage 12 V DC Charge Regulation Alpha Pro III (included) Isolated Operation Yes Rotational Direction 2 (bi-directional) Mounting Position Six o’clock Belt Section 2x A Multigroove Pulley Optional (available for 12/130 model) Cooling Fan-assisted (via pulley) Weight 10.1 kg / 22.3 lb Nominal Pulley Diameter 89 mm / 3.5 inch
Charging Characteristics
Stage Voltage Absorption 14.25 V Float 13.25 V
Applications
- Marine vessels with starter + service battery banks
- Mobile installations with auxiliary battery loads
- Generator-free off-grid setups using large battery banks
- Secondary alternator on the main engine for inverter systems
Documents
Alpha 12_130 III - DataSheet Size: 230,4 KbAlpha 12_130 III - User Manual Size: 1021,5 Kb -
Ask a Question
Popular products
-
1-2 weeks delivery time€ 1.788,19 -
-
-
1-2 weeks delivery time€ 1.704,04 -
1-2 weeks delivery time€ 2.217,35 -
-
-
-
-
