Rear View of the SI 28 Series Alternator.

The picture shows the connection terminals on the back of the Alternator. There is a difference in the exciter terminal connection and one of the 12 volt connections.

28SI SPECIFICATIONS

Performance Output

12 Volts @ 200 Amps (140 Amps at engine idle)

Maximum Speed 10,000 RPM Continuous, 12,000 RPM Intermittent

Rotation--Clockwise

Temperature Limits--- Low -40°C (-40°F) High 125°C (257°F)

Polarity Negative Ground