IP23 fan mounted radially uncompensated armature control up to 10min-1, M=constant 144kW, 2300min-1, 420V, 370A ; 310V excitation voltage IM B3 A11=thermal motor protection in the reversing pole winding by PTC thermistor for switch-off G05=external fan mounting BS, top air inlet from AS G14=air filter G39=with mounted tacho REO 444 R 4W, DC 60V, in B 33 (radio energy)
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