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Voltage Regulator

Internal Design
Designation
Early
Type I
Bosch
Late
Type II
Bosch
Conditions In-Car
Air Temperature
9.45 at 25 Volts At Degrees Celsius (V @ deg C)
Warm Temperature
9.45 at 60-80 Volts At Degrees Celsius (V @ deg C)
Condition On-Bench
Air Temperature
12.60 at 25 Volts At Degrees Celsius (V @ deg C)
Warm Temperature
12.60 at 60 Volts At Degrees Celsius (V @ deg C)
Test In-Car Alternator Speed
6000 Revolutions Per Minute (rpm)
Engine Speed
3000 Revolutions Per Minute (rpm)
Load On Alternator
30-50 Ampere (A)
Test On-Bench
Alternator Speed
6000 Revolutions Per Minute (rpm)
Engine Speed
0
Load On Alternator
5 Ampere (A)
In-Car Control Voltage
at B+ and D- on alternator
Cold Reading
1 minute
14.1-14.8 Volts (V)
Warm Reading
15 min. @ 3000 rpm
13.4-14.2 Volts (V)
On-Bench Control Voltage
Cold Reading
1 minute
14.4-14.8 Volts (V)
Warm Reading
15 min. @ 3000 rpm
13.8-14.3 Volts (V)
Load Control Tolerance
13.7 - 14.5
47 Ampere (A)
60 Ampere (A)
77 Ampere (A)