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POWERTEC Brushless DC Motors
Versatile, Efficient, Responsive

POWERTEC's selection of enclosures - TENV, TEAO, DPFG and DPBV - provides suitable motor enclosures and mounting for virtually any industrial environment. The motors are available with NEMA foot mountings; NEMA C-face, and D-flange mountings are also available.

These brushless DC motors use efficient ceramic ferrite permanent magnets bonded to the rotor to produce the magnetic field. Thus, there are no losses in the motor due to rotor induction currents. All of the current delivered to the brushless DC motor is used to develop torque.

The powerful and lightweight permanent magnet rotor design provides low rotor inertia for high torque to inertia ratios in a relatively small frame. This high torque density equates to a very responsive motor with high starting and running torque, rapid start-stop capabilities and smooth operation over the entire speed range.

The brushless DC motor is a true synchronous motor. The rotor field is always in sync with the excitation field; it does not have losses due to slip. This factor, inherent to brushless DC design, combined with various primary and secondary feedback options, allows for precise speed and torque control.

Reliable, low-maintenance brushless DC motors do not have any brushes to replace or a commutator to wear out. Little heat is generated in the rotor allowing the bearings to run cooler while increasing bearing life. Factory mounted feedback devices are integral to the motor and eliminate high maintenance couplings.


Features & Benefits

Features Benefits
Brushless Technology
Reliable, high-performance motor technology - long-life, virtually maintenance free, cooler running, low acoustic noise, same HP as other technologies in smaller motor frame 
Optimum ferrite permanent magnet design
Low rotor inertia 
High power density 
High torque density 
NEMA enclosures and mounting options
Satisfies broad end-use requirements 
Patented double-finned, aluminum frame
Efficient cooling of the stator assembly 
Withstands higher shock loads than conventional cast iron enclosures 
Oversized bearings pressed into steel bearing insert, clamped rear bearing (NEMA 180 to 320 frames) 
All thrust loads accommodated by rear bearing, increasing reliability and durability 
Integral shaft mounted Hall sensors or resolver and encoder 
No coupling, yields higher feedback resolution and accuracy 
Four different wiring configurations for various horsepower and speed requirements 
Flexible and versatile 
Robust stator has: 
Concentric coil windings 
Inverter duty insulation system 
Proprietary trickle varnish process 
Stator better withstands high voltage transients of PWM waveforms
Class H insulated, conservatively rated for class F operation 
Additional assurance of motor integrity over broad temperature range 
Near unity power factor at all speeds and loads
Eliminates costly power factor correction 
Reduced power consumption for important energy savings 
0 percent speed regulation No slip, drift, higher throughput
Standard two year warranty Assured quality and reliability




Totally Enclosed, Non-Ventilated (TENV) Enclosure

These motors are ideally suited for use in harsh industrial environments with unclean or particle saturated air. POWERTEC TENV motors offer high horsepower in a small frame size - from 0.25 HP in a NEMA 42 frame to 100 HP in a NEMA 320 frame.

Agency approvals: UL Recognized, CSA Listed, CE Certified (pending)




Dripproof, Fully Guarded (DPFG) Enclosure

DPFG motors offer high horsepower in a small frame size - from 5 HP in a NEMA 180 frame to 300 HP in a NEMA 320 frame. The motor is cooled by integral fans mounted to the motor shaft. Air is drawn into and exhausted through finned plates in both ends of the motor enclosure. The larger rear fan incorporates a balanced, asymmetrical design. This design reduces audible resonance and causes turbulent airflow within the motor to eliminate hot spots. Our patented double finned aluminum frame allows more efficient cooling of the stator.

Agency approvals: UL Recognized, CSA Listed, CE Certified (pending)




Totally Enclosed, Air Over Motors (TEAO) Enclosure

TEAO motors provide high horsepower in a small frame size - from 10 HP in a NEMA 250 frame to 250 HP in a NEMA 320 frame. An aluminum shroud encloses a portion of the external finned aluminum motor housing. This design allows air to be moved over a large surface area of the motor for efficient cooling. This design also has the advantage of preventing dust particles from accumulating on the motor's surface, which act as an insulator and inhibit proper cooling of the motor.

Agency approvals: UL Recognized, CSA Listed, CE Certified (pending)




Dripproof, Blower Ventilated (DPBV) Enclosure

This enclosure permits cooling by an external blower. Our patented double finned aluminum frame allows more efficient cooling of the stator assembly. Air is exhausted through finned plates in the shaft end of the motor enclosure. These motors are protected from solid particles greater than 12 mm in diameter and liquids striking or entering the enclosure at an angle of not more than 15 degrees from the vertical (NEMA IP22). The motor is cooled in accordance with NEMA IC06. DPBV motors offer high horsepower in a small frame size - from 5 HP in a NEMA 180 frame to 300 HP in a NEMA 320 frame.

Agency approvals: UL Recognized, CSA Listed, CE Certified (pending)

  • Features & Benefits
  • Selection Overview:
  • TENV
  • DPFG
  • TEAO
  • DPBV
  • Dimensions
  • Cutaway View
  • Exploded View
  • Standard Options:
  • NEMA 42 Frame
  • NEMA 140 Frame
  • NEMA 180 Frame
  • NEMA 210 Frame
  • NEMA 250 Frame
  • NEMA 280 Frame
  • NEMA 320 Frame
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    Sample Model Number Code - NEMA 42 Frame

    This chart identifies the components of a typical model number code for a POWERTEC Ferrite NEMA 42 Frame. Contact your Powertec Industrial Motor Distributor or the Customer Center (803/328-1888, FAX 803/328-1870 or E-mail) for additional information and application assistance.






    Sample Model Number Code - NEMA 140 Frame

    This chart identifies the components of a typical model number code for a POWERTEC Ferrite NEMA 140 Frame. Contact your Powertec Industrial Motor Distributor or the Customer Center (803/328-1888, FAX 803/328-1870 or E-mail) for additional information and application assistance.





    Sample Model Number Code - NEMA 180 Frame

    This chart identifies the components of a typical model number code for a POWERTEC Ferrite NEMA 180 Frame. Contact your Powertec Industrial Motor Distributor or the Customer Center (803/328-1888, FAX 803/328-1870 or E-mail) for additional information and application assistance.





    Sample Model Number Code - NEMA 210 Frame

    This chart identifies the components of a typical model number code for a POWERTEC Ferrite NEMA 210 Frame. Contact your Powertec Industrial Motor Distributor or the Customer Center (803/328-1888, FAX 803/328-1870 or E-mail) for additional information and application assistance.





    Sample Model Number Code - NEMA 250 Frame

    This chart identifies the components of a typical model number code for a POWERTEC Ferrite NEMA 250 Frame. Contact your Powertec Industrial Motor Distributor or the Customer Center (803/328-1888, FAX 803/328-1870 or E-mail) for additional information and application assistance.





    Sample Model Number Code - NEMA 280 Frame

    This chart identifies the components of a typical model number code for a POWERTEC Ferrite NEMA 280 Frame. Contact your Powertec Industrial Motor Distributor or the Customer Center (803/328-1888, FAX 803/328-1870 or E-mail) for additional information and application assistance.





    Sample Model Number Code - NEMA 320 Frame

    This chart identifies the components of a typical model number code for a POWERTEC Ferrite NEMA 320 Frame. Contact your  Distributor or the Customer Center (803/328-1888, FAX 803/328-1870 or E-mail) for additional information and application assistance.



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  • NEMA 42 frames   (56 KB)
  • NEMA 140 frames (75 KB)
  • NEMA 180 frames (102 KB)
  • NEMA 210 frames (105 KB)
  • NEMA 250 frames (179 KB)
  • NEMA 280 frames (143 KB)
  • NEMA 320 frames (155 KB)


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