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Rotary Phase Converters

 
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 Phase Converters...
     TURN SINGLE PHASE INTO THREE PHASE ELECTRICIT


Phase Converters convert single phase power to industrial 3-phase power. Different types of phase converters exist, and they each have a certain method to achieve the conversion. Because American Rotary offers every type of phase converter available...Rotary, Digital, CNC, and Static...you can always be sure that we will recommend the method that is preferred for your specific application!

Rotary Phase Converters are a cost-effective and efficient means to start and run 3-phase motors on single phase power at 100% of their rated horsepower. Rotary phase converters can be used with heavy loads, resistive loads, multiple motor loads, multiple speed loads, and CNC equipment.

Click on Link Below for Valuable Information on Rotary Phase Converters
Phase Converters 101 Rotary Phase Converter Details Sizing Rotary Phase Converters American Rotary Advantages

5 Year Parts & Labor Warranty

Larger sizes are available please call 1-800-458-3687 for a detailed quote!

Determine the load type of the application, and then consult the chart below. 
Please call us toll free at 1-800-458-3687 for sizing assistance and/or a professional recommendation.

  • Easy - no flywheel, clutch, little resistance/inertia, 1-2 times full load current upon start-up
  • Medium- machine inertia, medium resistance, 3-4 times full load current upon start-up
  • Hard - flywheel, no clutch, starts against load, 5-6 times, or locked rotor current upon start-up
  • Very Hard- elevator, hydraulic pump, equipment under continuous load etc
  • Frequent Start- instant reversing, heavy running loads
  • CNC - turning centers, PLC's, EDM, CNC machining
  • Resistive - heaters, transformers, welders, power supplies etc.
Rotary Phase Converter Largest HP Motor Load Maximum CNC Load Max Total Load Combined Equip† Operating Cost‡
HP kW Easy Med Hard Amps kW HP* Amps kW ($ per/hr)
3 2.2 2 2 1.5 0-5 0-1.5  1.5  9  2.7  $.01
5 3.7 3 3 2 0-8 0-2.4  2.5  15  4.5  $.015
7.5 5.6 5 5 3 0-11 0-3.3  3.75  22  6.6  $.02
10 7.4 7.5 6 5 0-15 0-4.5  5  28  8.4  $.03
15 11.2 10 10 7.5 0-20 0-6  7.5  42  12.6  $.045
20 14.9 15 12 10 0-25 0-7.5  10  54  16.2  $.06
25 18.6 20 15 10 0-30 0-9  12.5  68  20.4  $.07
30 22.4 25 20 15 0-42 0-12.6  15  80  24.0  $.09
40 29.8 30 25 20 0-55 0-16.5  20  104  31.2  $.12
50 37.3 40 35 25 0-70 0-21  25  126  37.8  $.15
60 44.7 50 40 30 0-80 0-24  30  150  45.0  $.18
80 58.7 60 50 40 0-110 0-33  40  208  62.4  $.24
100 73.3 80 70 50 0-140 0-42  50  252  75.6  $.30
120 88.0 100 80 60 0-160 0-48  60  300  90.0  $.36
* total spindle horsepower: total kW of the machine must be less than max CNC load kW.
† combined loads do not include CNC or voltage sensitive loads.
‡ cost based on national average of $.10/kWhr.
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