Maximum 24V Charging Output for Cruising and High-RPM Operation

The ARCO 24V 7kW SF12 High Output Alternator delivers substantial engine-driven charging for large 24V battery banks, with its performance focused on cruising and mid-to-high engine speeds. Native 24V rotor and field architecture improves electrical efficiency and thermal performance, while external regulation enables charging to be managed by a compatible P-Type regulator. The isolated ground configuration, side-mounted M8 battery post and 49mm K6 pulley support integration into demanding marine, RV, commercial and off-grid electrical systems.

Key Features

• 7kW Output Class: Produces up to 284A / 7,810W at 27.5V during ARCO's cold maximum-output testing, providing substantial charging capacity for large 24V battery banks.
• High Cruising Output: Sustains 220A / 6,050W at 6,000 alternator RPM under hot operating conditions, making it particularly suited to charging while cruising or driving.
• Native 24V Architecture: Uses a dedicated 24V rotor and field system to improve efficiency and reduce operating temperatures.
• External Regulation: External-only P-Type configuration allows charging parameters to be managed through a compatible external alternator regulator.
• Isolated Ground: Provides electrical separation from the engine ground for compatible marine electrical installations.
• Side Battery Post: M8 threaded side-mounted battery post supports practical high-current cable routing within the installation.
• 49mm K6 Pulley: Supplied with a 49mm six-groove pulley for compatible serpentine belt drive systems.
• Advanced Thermal Management: Heat-shedding coatings, an externally mounted rectifier and dual cooling fans assist with temperature control during sustained high-output operation.
• SAE J1171 Certified: Meets SAE J1171 requirements for applicable marine installations.

With its emphasis on sustained power production at cruising and higher RPM, this alternator supports applications where significant charging capacity is required while the engine is underway. Its external regulation and thermal management also provide greater control when charging large-capacity battery systems.