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Order Lookup3-Phase NEMA Frame General Purpose AC Motors
Available58 products
Three-phase NEMA frame general purpose AC motors don't require starting capacitors, run capacitors, or centrifugal starting switches that can wear out and fail. Motors operate with a higher torque and greater efficiency than single-phase models of the same HP, rpm, and frame size. They have three-windings that create a naturally rotating magnetic field within the frame of the motor and are suitable for use in nonhazardous applications with pumps, ventilation equipment, machine tools, and other industrial equipment. Motors may have a single protrusion on the motor shell such as a conduit box that houses the electrical connections between the external power cables and the internal electrical wiring of the motor. They have NEMA frame construction with standard dimensions that allow drop-in replacement of motors from multiple suppliers with no modifications required to existing installations. The frame size for these motors is shown on the motor nameplate under āFrameā or āFRā.
HP
NEMA 42 Frame 3-Phase NEMA Frame General Purpose AC Motors
NEMA 42 frame three-phase general purpose AC motors have a standard 3/8" diameter, 1-1/8" length shaft whose center is 2-5/8" above the base mounting surface. Variations to the frame's standard dimensions and design are indicated by a letter designation following the frame number, such as 42CZ. The letter āCā indicates that the motor can be face mounted, and āZā indicates that the frame has a nonstandard shaft. These frame standards and letter designations are defined by the National Electrical Manufacturers Association (NEMA).
Totally Enclosed Fan-Cooled with Face Mount
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NEMA 48 Frame 3-Phase NEMA Frame General Purpose AC Motors
NEMA 48 frame three-phase general purpose AC motors have a standard 1/2" diameter, 1-1/2" length shaft whose center is 3" above the base mounting surface. Variations to the frame's standard dimensions and design are indicated by a letter designation following the frame number. These frame standards and letter designations are defined by the National Electrical Manufacturers Association (NEMA).
Open Dripproof with Rigid Base Mount
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Totally Enclosed Fan-Cooled with Rigid Base Mount
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Totally Enclosed Nonventilated with Rigid Base Mount
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NEMA 56 Frame 3-Phase NEMA Frame General Purpose AC Motors
NEMA 56 frame three-phase general purpose AC motors have a standard 5/8" diameter, 1-7/8" length shaft whose center is 3-1/2" above the base mounting surface. Variations to the frame's standard dimensions and design are indicated by a letter designation following the frame number, such as 56HZ or 56C. The letter āHā indicates that the frame has a set of mounting holes at 3" and 5", āZā indicates that the frame has a nonstandard shaft, and āCā indicates that the motor can be face mounted. These frame standards and letter designations are defined by the National Electrical Manufacturers Association (NEMA).
Open Air-Over with Not Applicable Mount
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Open Air-Over with Rigid Base Mount
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Open Dripproof with Cradle Base Mount
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Open Dripproof with Face Mount
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Open Dripproof with Face/Base Mount
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Open Dripproof with Not Applicable Mount
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Open Dripproof with Resilient Base Mount
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Open Dripproof with Rigid Base Mount
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Open Dripproof with Universal Mount
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Totally Enclosed Air-Over with Face Mount
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Totally Enclosed Air-Over with Rigid Base Mount
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Totally Enclosed Fan-Cooled with Face Mount
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Totally Enclosed Fan-Cooled with Face/Base Mount
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Totally Enclosed Fan-Cooled with Not Applicable Mount
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Totally Enclosed Fan-Cooled with Rigid Base Mount
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Totally Enclosed Fan-Cooled with Universal Mount
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Totally Enclosed Nonventilated with Face Mount
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Totally Enclosed Nonventilated with Not Applicable Mount
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Totally Enclosed Nonventilated with Rigid Base Mount
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NEMA 440 Frame 3-Phase NEMA Frame General Purpose AC Motors
NEMA 440 frame three-phase general purpose AC motors have a standard 3-3/8" diameter, 8-1/2" length shaft whose center is 11" above the mounting surface. Variations to the frame's standard dimensions and design are indicated by a letter designation following the frame number, such as 444TS. The letter āTā specifies integral HP motor dimension standards set by NEMA in 1953 and 1964, and āSā indicates a standard shorter shaft for direct-drive applications. These frame standards and letter designations are defined by the National Electrical Manufacturers Association (NEMA).
Open Dripproof with Rigid Base Mount
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Totally Enclosed Fan-Cooled
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Totally Enclosed Fan-Cooled with Face Mount
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Totally Enclosed Fan-Cooled with Rigid Base Mount
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