Siemens FC/MA MOC Switch
Allis Chalmers FC/MA MOC Switch
Used in the following
FB-500A1
FC-1000
FC-500
FC-500A
FC-500A1
FC-500B
FC-500-VR
FC-750
FCV-500
FCV-1000
MA-150
MA-250
MA-250A
MA-250B
MA-250-C1
MA-350
MA-350A
MA-350-C1
MA-75