Icon Fitness MC 5100 Motor Controller. Used on several Nordictrack treadmill models.
Nordictrack MC 5100 Motor Controller
NordicTrack®
X11i Incline Trainer - NTL240120
X11i Incline Trainer - NTL240122
X9i Incline Trainer - 831.249190
X9i Incline Trainer - 831.249191
X9i Incline Trainer - 831.249192
X9i Incline Trainer - 831.249193
X9i Incline Trainer - 831.249194
X9i Incline Trainer - 831.249196
X9i Incline Trainer - 831.249280X9i Incline Trainer - 831.249281
X9i Incline Trainer - NTL190100
X9i Incline Trainer - NTL190101
X9i Incline Trainer - NTL190102
X9i Incline Trainer - NTL190103
X9i Incline Trainer - NTL190104
X9i Incline Trainer - NTL190106
X9i Incline Trainer - NTL190107