VG 400 Alternators
14V/55-70A; 28V/35-45A
VG 450 Alternators
14V/42A; 28V/35-50A
22 SI Alternators
12V/100-145A; 24V/35-50A
VG 500 Alternators
24V/80A
VG2000 Alternators
(Bosch T1 replacement alternators)
28V/100-140A
You can find more information on SI alternators
here.