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  • Rotor-fed 3-phase AC commutator motor (type DNR)

    The rotor-fed three-phase AC commutator motor enables infinite variable speed regulation in a simple and economic way. The speed regulation is an inherent part of the motor itself, this permits robust construction and results in compact overall dimensions.

    The rotor-fed three-phase AC commutator motor enables infinite variable speed regulation in a simple and economic way. The speed regulation is an inherent part of the motor itself, this permits robust construction and results in compact overall dimensions.

    The FAURNDAU motor is an outstanding drive for machines that require variable speed.

    All FAURNDAU three-phase AC commutator motors are available with 4 or 6 poles.

    The special advantages of this drive system:

    • The infinitely variable speed control is an inherent part of the motor, no mechanical linkages are used
    • The rated torque is constant over the whole speed range
    • Starting torque of up to the 2,5 times of rated torque
    • High efficiency ensures optimum use of electrical energy
    • Control by contactors - direct from the three-phase supply, therefore simple control circuits
    • Brush life up to 15000 operation hours
    Power range 2.0 - 125 KW
    Sizes DNR 0 - DNR 75-6
    Enclosure IP 21 S, IPR 44
    Speed range 0 - 2500 Upm
    Insulation Class B or B/F

    Optional equipment and special versions (tachogenerator, filter, overload relay) possible.

     

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