SKU:
EX 48612131
€ 1.779,77
1-2 weeks delivery time
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+
The Mastervolt Alpha 12/130 Multi-Belt (48612131) is a high-performance 12V alternator delivering 130A of charge current, optimized for dual battery systems. Supplied with the advanced Alpha Pro III regulator, it ensures fast, complete charging and extended battery life. Designed for all engine types, this alternator features dual A-section belts, multigroove pulley (Ø89 mm), and fan-based forced cooling for reliable output even at low RPMs and ambient temperatures above 40°C. Weighs 10.1 kg; mounting: six o’clock.
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Mastervolt 48612131 - Alpha Alternator 12/130 Multi-Belt with Alpha Pro III Charge Regulator (130A, 12V)
The Mastervolt Alpha 12/130 Multi-Belt alternator (part number 48612131) is engineered for demanding marine and mobile energy systems, providing 130 amps of regulated charge at 12 volts. Standard-equipped with the Alpha Pro III charge regulator, this system guarantees optimized multi-stage charging, battery longevity, and robust performance under harsh operating conditions.
Key Features
- High charge current: 130 A at 12 V
- Includes Alpha Pro III charge regulator for adaptive 3-stage charging
- Supports simultaneous charging of multiple battery banks using Battery Mate or isolators
- Optimized for low-RPM performance – full charging even at idle speeds
- Multigroove (dual A-belt) pulley design – 89 mm nominal diameter
- Forced cooling enables performance in temperatures over 40 °C
- Compatible with all engine types – multiple mounting fixations
- Ideal for setups using a second alternator and large battery banks
Technical Specifications
Part Number 48612131 System Voltage 12 V Total Charge Current 130 A Charge Voltage - Absorption 14.25 V Charge Voltage - Float 13.25 V Charge Regulation Alpha Pro III (included) Isolated Operation Yes Belt Section 2x A Nominal Pulley Diameter 89 mm (3.5 inch) Rotational Direction Bi-directional Mounting Position Six o’clock Cooling Method Pulley-driven fan (forced cooling) Operating Temperature Up to > 40 °C Weight 10.1 kg (22.3 lb)
Applications
- Marine power systems (yachts, cruisers)
- Mobile applications (RVs, expedition vehicles)
- Off-grid systems requiring rapid battery charging
- Systems with multiple battery banks or second alternators
Installation Notes
- Compatible with custom alternator brackets available from engine manufacturers or installers
- Use with Battery Mate or isolators for independent battery bank charging
Documents
Alpha 12_130 III multigroove - DataSheet Size: 230,4 KbAlpha 12_130 III multigroove - User Manual Size: 2,7 Mb -
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