Description
Product details
Crane duty motors are specially designed for frequent starts/stops & reversing required in cranes & lifts of all types. They can also be used in applications such as material handling, weirs & sluices, auxiliary motors in rolling mills or wherever intermittent drives are required. Range: KW : 1.5 Pole : 4P Mounting : B5 Frame : 100 Voltage : 415V ± 10% or as required Frequency : 50Hz ± 5% or as required Ambient : 50°C. (Refer Table 1) Altitude : up to 1000m above msl (Refer Table 2) Rotor type : Squirrel cage aluminum die cast Enclosure : Totally enclosed fan cooled (TEFC) Protection : IP55 Ins. class : Class F with temp. rise limited to class B Duty cycle : S1 Standards : IS 12615 Table 1Table 2Ambient temp. (°C) Deration factor for Power Altitude above msl (m) Deration factor for Power 50°C1.0010001.0055°C0.9615000.9760°C0.9220000.9425000.9030000.86 Construction: Castings: Crane duty motors body is made out of aluminium die cast and end shields are made from high quality castings as per IS 210. All components are machined to correct accuracy & alignment. Stampings: The stampings are made from low loss high permeability steel. Terminal Box: Standard location of terminal box. Winding & Protection: All motors are wound with super enameled dual coat copper wires. This enable motors to be used for inverter applications as well. Features like vacuum pressure impregnation (VPI) & PTC thermistors embedded in stator winding can be provided on request. Earthing terminals: Two earthing terminals are provided, one in the terminal box & other on the motor body. Motors with integral brakes: These motors can be supplied with integral electromagnetic DC fail safe brakes with built in rectifiers .
