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    2 hp NEMA AC Induction Motor, Three Phase 230/460V, ODP/TEFC

    The provided best ATO AC induction motor comes with NEMA B design, 2 hp, 2 pole number, three phase at 230/460V, has a maximum operating speed of 3450 revolutions per minute (rpm). C face footed mounting, open drip proof (ODP) enclosure motor or totally enclosed fan cooled (TEFC) enclosure motor can be chosen.
    SKU: ATO-IM-RT22
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    This 2 horsepower AC electric motor is 3 phase, 60Hz, 230/460V asynchronous motor for general purpose applications such as air compressors. It has 145TC rolled stell frame construction for strength and durability, and NEMA B design which providing low starting current and high locked rotor torque.
    2 hp 3 phase AC Induction Motor Specification

    Basics Model ATORT222D11 ATORT22T11
    Enclosure ODP TEFC
    Type General Purpose Asynchronous Motor
    Item Weight 55 Ibs
    Motor Length 14.6 inch
    Frame 145TC Frame
    Design NEMA Design B
    Certification CE, UL
    Motor Material Roll Steel
    Technical Parameters Service Factor 1.15 1.25
    Horsepower 2 hp
    Rated Frequency 60 Hz
    Phase Three Phase
    Pole 2 pole
    Voltage 230/460V AC
    Full Load Amps 5.31/2.65A
    Speed 3450 RPM
    Efficiency 85.5%
    Duty Continuous
    Isulation Class Class F
    Protection Class IP54/ IP55
    Mounting Method C Face, Footed
    Environment Ambient temperature -15℃≤θ≤40℃
    Altitude Altitude should be lower than 1000 meters above sea level

    2 hp 3 phase AC Induction Motor Dimension

    3 phase nema ac induction motor dimension
    Unit: inch

    AB BA Max
    C D E 2F H N-W O P R S U Min
    AH BF BC AJ AK Min
    145TC 5.6 2.75 7 6.18 0.16 6.5 14.6 3.5 2.75 5 0.34 2.25 6.7 7.08 0.771 0.188 0.875 1.41 3/4 2.12 1/2-13 +0.12 5.875 4.5 2

    NEMA AC Induction Motor Connection Diagram

    Nema induction motor connection diagram


    2 hp NEMA AC Induction Motor Details

    Tips: The AC induction motor bearing is overheating, why and how to do?

    • The match between bearing and shaft is too loose or too tight.
      This situation will result in redundant friction, thus leading to the temperature rise of the motor bearing. The loose spindle can be inlayed with the bushing. If it is too tight, it is required to reprocess the spindle to the standard size.
    • The bearing and end bell coordination is too loose or too tight.
      If it is too loose, the end bell can be inlayed with the bushing; if it is too tight, it is required to reprocess into the standard size.
    • The lubricating oil of the bearing is too much or too little, or the oil quality is not good.
      Place certain lubricating oil or exchange the lubricating oil.
    • The bearing has been damaged.
      Exchange the bearing.


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