MANUFACTURED BY LIMITORQUE. SIZE B320-50, RATIO 4:1, S/N-L460354. ORDER NUMBER 211521.02X. ELECTRIC ACTUTOR WITH MANUAL OVERIDE. MOTOR IS 1.9 HP, 230/460 VOLT, 1700 RPM. I.D. NUMBER B77V7127M-VM, TYPE XP. MOTOR IS DESIGNED FOR HAZARDOUS ENVIRONMENT, CLASS 1, GROUP D, CLASS 2, GROUP D.