AC Motors

AC Motors - Low Voltage Motors: Crane Duty Cage Motors

  • Low Voltage Motors: Crane Duty Cage Motors

    FEATURES VALUES/ STANDARDS
    Ambient Temperature -10 to +50°C
    Altitude Not exceeding 1000mtrs above mean sea level.
    Atmosphere Non corrosive & non Hazardous
    Relative Humidity Up to 100%
    Voltage 415V ±10%, 3 Ph.
    Frequency 50Hz ±5%
    Combined Variation 10%
    Duty S3, S4 & S5
    Service factor 1.0

    Execution & Features

    FEATURES VALUES/ STANDARDS
    Starting DOL
    Loading at reduced volts 75% Rated volts for 5 minutes.
    Insulation Class `F'
    Temp rise 'F'
    Direction of rotation Bi-directional
    No. Of leads 3 up to 100 Frame, 6 for 112 and above Frames
    Degree of protection IP 55
    Method of cooling IC 411
    T.box position Side (RHS looking from DE, towards DE)
    Bearing life
    (90% survival basis)    		 40,000 working hrs. For direct drive
    20,000 working hrs. For belt drive
    Vibration Normal class as per IS 12075
    Noise As per IS 12065
    Construction Foot
    Frame sizes 80 to 225
    Shaft extension Single cylindrical extension as per IS 1231
    Body material Aluminium up to 112, cast iron above 112 Frames
    T.box material Cast iron
    Fan material Polypropelene up to 112, cast iron for 132,160, aluminium for 180 to 200
    Accessories
    		 Nil
    Paint & shade NC base RAL 5012 shade
    Bearing type
    Greasing facility    		 Open type bearings for 80 to 200. No online greasing facility for up to 160 Frame. Online greasing facility for 180 to 225