Fusion Reactor (SU's) Power
Class 2/sA (10) <20-29>
Class 3/sB (20) <30-39>
Class 4/sC (30) <40-49>
Class 5/sD (40) <50-59>
Class 6/sE (50) <60-69>
Class 7/sF (60) <70-79>
Class 8/sG (70) <80-89>
Class 9/sH (80) <90-99>
Class 10/A (100) <200-224>
Class 11/B (110) <225-249>
Class 12/C (120) <250-274>
Class 13/D (130) <275-299>
Class 14/E (140) <300-324>
Class 15/F (150) <325-349>
Class 16/G (160) <350-374>
Class 17/H (170) <375-399>
Class 18/I (180) <400-424>
Class 19/K (190) <425-449>
Class 20/L (200) <450-474>
Class 21/lA (250) <570-599>
Class 22/lB (260) <600-629>
Class 23/lC (270) <630-659>
Class 24/lD (280) <660-699>
Class 25/lE (290) <700-729>
Class 26/xA (350) <740-779>
Class 27/xB (360) <780-819>
Class 28/xC (370) <820-869>
Class 29/xD (380) <870-909>
Class 30/xE (390) <910-939>
from a post by Michael Brinkhues on 7.11.2001