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Alternator Regulators: Description

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Fiat voltage regulators are of the dual stage vibrating contact type. An induction auxiliary coil, considerably smaller than the magnetizing coil, is mounted near contact side of the yoke. In addition to two regulating resistors, an additional resistor works in series with the main voltage coil. The regulator is grounded through the mounting flanges. Resistors are protected from impacts by a metal shield secured to mounting flange.

SPECIFICATIONS

Application Data
Fiat Part No RC 2/12B
Alternator Test RPM 5000
1st Stage Testing (Amps) 25-35
2nd Stage Testing (Amps) 2-12
2nd Stage Testing (Volts) 14.2±.3
Resistance Values (Ohms)  
  Plug "15" & Ground 28±2
  Plug "15" & "67" W/ Con. Open 5.65±.3
Armature Air Gap (In.) .059±.0028