High-Output 12V Marine Alternator with Isolated Ground for Advanced Charging Systems

Reliable charging is essential for marine vessels with increasing electrical demands. Delivering a nominal 225A output and up to 254A maximum output, this 12V high-output marine alternator is engineered to provide consistent charging performance across a wide operating range. Featuring a DF315 mounting configuration, externally regulated operation, isolated ground, rear battery post and a 49mm K6 serpentine pulley, it integrates seamlessly with advanced charging systems while offering dependable performance in demanding marine environments.

Key Features

• 225A Nominal Output: Delivers high charging capacity to support battery banks, inverters and power-intensive onboard electrical equipment.
• 254A Maximum Charging Output: Produces up to 254 amps at higher alternator speeds for rapid battery replenishment during engine operation.
• Excellent Hot Output Performance: Maintains up to 187A at cruising speed and 157A at idle under hot operating conditions, helping ensure dependable charging when it is needed most.
• External Regulation Compatible: Designed exclusively for use with an external regulator, providing accurate charging control for modern battery management systems.
• Isolated Ground Design: Electrically isolated ground configuration supports specialised marine installations requiring a separate grounding circuit.
• DF315 Mounting Configuration: Suits compatible marine engine applications requiring a DF315 mounting arrangement.
• Rear Battery Post Connection: M8 threaded rear battery post provides a secure electrical connection while simplifying cable routing.
• 49mm K6 Serpentine Pulley: Factory-fitted 6-groove pulley delivers efficient belt engagement and reliable power transfer.
• Compact 130mm Small Frame: High-output performance in a space-saving housing for installations with limited engine room clearance.
• Avalanche-Rated Diode Assembly: Six positive and six negative 50A avalanche-rated diodes provide increased durability and protection against voltage spikes.
• Wide Operating RPM Range: Begins charging from just 1,061 alternator RPM and supports continuous operation up to 19,000 alternator RPM.
• Corrosion-Resistant Finish: Available with a black Cerakote or E-coating finish to help withstand harsh marine environments.

Combining high charging capacity with an isolated ground configuration and external regulation, this alternator is built to support demanding marine electrical systems. Its robust construction and consistent output provide dependable performance across a broad range of operating conditions.