Open Dripproof and Totally Enclosed Fan Cooled

AC Motor

  • Open Dripproof and Totally Enclosed Fan Cooled
  • Energy Efficient per NEMA (1993) MG1, 12-10
  • 140-440T Frames, 1 through 400 Horsepower
  • 3600 - 900 rpm / 2 through 8 pole
  • Both 60 hertz and 50 hertz operation
  • 250 Frame and larger ratings suitable for wye-start delta run or across-the-line starting
  • CE Mark on nameplate
  • Meets EPACT 92 (USA), NOM 74 (Mexico), and CSA C390 (Canada) efficiency levels

 

Product Overview

U.S. Motors' World Motor is designed for the global marketplace. It provides an economical method of meeting evolving efficiency requirements such as EPACT '92 for the United States, NOM 74 for Mexico and CSA C390 for Canada. The World Motor a general purpose motor that meets standard NEMA requirements on 60 hertz operation, including 40C ambient, Design B, class B temperature rise at full load and usable up to 3300 ft altitude.

The World Motor is available in open dripproof or totally enclosed fan cooled designs. Two types of totally enclosed fan cooled motors are available: the Unimount or the Hostile Duty. On 180 frame and larger, the Unimount frame is constructed from extruded aluminum and the Hostile Duty models have rugged cast iron frames and end bells. On 56 and 140 frames, both offer rolled steel shells with aluminum end bells on Unimount and cast iron end bells on Hostile Duty. Unimount designs also offer removable bases for footless applications.

Designed for flexibility, the 230/460 or 460 volt 60 hertz motors can be used on 190/380 or 380 volt 50 Hz. This 50/60 hertz operation is clearly defined on the dual frequency World Motor nameplate (see example on back cover). The nameplate also displays the "CE" mark verifying certification to the European community's low voltage directive.

The World Motor is constructed with all copper windings and low loss stator laminations to optimize efficiency. This product meets the federally legislated efficiency levels mandated effective October 24, 1997, in the USA. In addition, all conduit boxes are diagonally split and oversized from NEMA standards for ease of installation. The standard F1 position may be easily modified on all 180 frames and above for F2 assembly position when required.

To modify the stock product offerings, we offer several stock conversion options including: C-face, D-flange, canopy cap/drip cover, terminal block, and strip heater. In addition we offer a wide variety of features on special factory orders. For a more comprehensive description of our new line of World Motors please contact your U.S. Motors sales representative.

Meets North American Efficiency Requirements

  • USA - 1997 Federal Efficiency levels - EPACT 92
  • Mexico - NOM 74
  • Canada - CSA C390
  • Efficiency per NEMA MG1, 12-10

Meets International Requirements

  • 50 and 60 hertz operation
  • Wye-Delta or Across-the-Line Start (250 Frame or larger)
  Open Dripproof Open Dripproof TEFC
Unimount
TEFC
Hostile Duty
Type "FD" "FR" "FUT" "FCT"
Frame Material Steel Cast Iron Aluminum
(56-140 Rolled Steel)
Cast Iron
(140 Rolled Steel)
End Shield Material 140-250 Aluminum
280-320 Cast Iron
Cast Iron Aluminum Cast Iron
Paint Corro-Duty
(250 Hour Salt Spray)
Corro-Duty
(250 hour Salt Spray)
Corro-Duty
(250 hour Salt Spray)
Corro-Duty
(250 hour Salt Spray)
Horsepower Range 1/3 thru 60 HP 30 thru 400 HP 1 thru 30 HP 1 thru 200 HP
Frame Sizes 56 thru 320T Frame 360 thru 449T Frame 56 thru 286T Frame 140 thru 447T Frame
CE Mark on
Nameplate
Yes Yes Yes Yes
Phase Three Phase Three Phase Three Phase Three Phase
Speeds 60Hz
50Hz
3600 - 900rpm 3600 - 900rpm 3600 - 900rpm 3600 - 900rpm
3000 - 750 rpm 3000 - 750 rpm 3000 - 750 rpm 3000 - 750 rpm
Voltage 60Hz
50 Hz
200, 208-230/460,
460,575 Volt
200, 230/460,
460,575 Volt
200, 208-230/460,
460,575 Volt
200, 208-230/460,
460, 575 Volt
190/380, 380 Volt 190/380, 380 Volt 190/380, 380 Volt 190/380, 380 Volt
Hertz 50/60 hertz on 230/460
volt & 460 volt only,
60Hz on 200 & 575 volt
50/60 hertz on 230/460
volt & 460 volt only,
60Hz on 200 & 575 volt
50/60 hertz on 230/460
volt & 460 volt only,
60Hz on 200 & 575 volt
50/60 hertz on 230/460
volt & 460 volt only,
60Hz on 200 & 575 volt
Service Factor 1.15 on 60 Hz
1.0 on 50 Hz
1.15 on 60 Hz
1.0 on 50 Hz
1.25 on 60 Hz
1.0 on 50 Hz
1.15 on 60 Hz
1.0 on 50 Hz
Starting Factor
Across-the-Line
Wye-Delta
Part Winding Start*

56-360T
250-360T
56-360T

360-449T
360-449T
360-449T

56-280T
250-280T
56-280T

56-447T
250-447T
56-447T
Bearing Type Sealed on 56-140T
Double Shielded
180-320T
Double Shielded 360T
Open 400-440T
Sealed on 56-140T
Double Shielded
180-280T
Double Shielded
140-360T
Open 400-440T
Regreasing
Provisions
Yes
180 Frame and larger
Yes Shaft End 250 Frame
and larger

Home / Products / AC Motors