All Sullivan Pancake Alternators use rare earth magnets for high power density and high efficiency. They have no brushes or slip rings to wear, and with few or no moving parts, they have very low noise and excellent reliability.
These units produce an AC voltage that varies in amplitude and frequency with RPM. Within their operational range, the faster they spin, the more power they can supply.
In most cases these alternators mount directly to an engine or drive shaft. No transmission is needed. The alternator hub is machined to accommodate the bolt pattern of the drive hub, or crankshaft interface.
It is also possible to drive the alternator with a coupling or to mount pancake alternators on a secondary shaft and drive them with a belt or gears. While less efficient than direct driving, this is an approach that can be used when space constraints prevent mounting directly to the drive hub.
Sullivan Alternators
Model NumberNo-load Voltage ConstantEngine SizeRated PowerRPMS676-230U-019.11 VAC/1000 RPM5cc to 30cc50 to 220W2500 to 7500 RPMS676-300F-0110.0 VAC/1000 RPM10cc to 50cc120 to 475W2500 to 7500 RPMS676-300F-0310.5 VAC/1000 RPMDirect mount to 3W-28i, most to 50cc200 to 690W2500 to 7500 RPMS676-300U-016.5 VAC/1000 RPMMost 10cc to 50cc140 to 525W2500 to 7500 RPMS676-400F-037.8 VAC/1000 RPMMost engines up to 50cc135 to 575W2500 to 7500 RPMS676-400U-0111.0 VAC/1000 RPMMost engines 20cc to 80cc325 to 1200W2500 to 7500 RPMS676-500U-0112.2 VAC/1000 RPMMost engines 50cc to 240cc650 to 2250W2500 to 7500 RPMS676-600F-0112.5 VAC/1000 RPMMost engines 100cc to 240cc1600 to 5000W2500 to 7500 RPMS676-600U-0112.0 VAC/1000 RPMMost engines 100cc to 240cc1150 to 4125W2500 to 7500 RPMS676-800U-0212.0 VAC/1000 RPMMost engines 150cc to 690cc3700 to 11400W2500 to 7500 RPMS686-600C-078.0 VAC/1000 RPMMost engines 100cc to 240cc2600 to 6000W2500 to 5000 RPM
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