DC MOTOR. IP 23 FAN UNIT. RADIALLY-MOUNTED UNCOMPENSATE ARM. CONTR. TO 10MIN-1.M=CONST 144KW. 2680 MIN-1. 520V. 296A ; 310V FIELD VOLTAGE. IM B 35 A11=THERMALMOTOR PROTECTION IN THE INTERPOLE WINDING WITH PTC THERMISTOR FOR TRIP G04=FAN MOUNT.NONDRIVE END TOP AIR INTAKE FROM NONDRIVE END G14=AIR FILTER H54=PULSE GENERATOR ROD 436.001 (HEIDENHAIN) 2X1024 PULSES PER REVOLUTION MOUNTING COSTS WITHDEVICE L73=SERVICE COVERS WITH INSPECTION WINDOW Y53=STANDARD PAINT FINISH IN RAL ... Y81=NON-STANDARD VOLTAGE. FREQUENCY OF FAN UNIT MOTOR