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207 E Market Street Nappanee, IN 46550

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Speak with a human M-F : 9 – 4 EST

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It’s a cell, photos ok : (574) 236-6220

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How to Select

Kay Industries is committed to ensuring your complete satisfaction with your Phasemaster® rotary phase converter. That is why we collaborate with you to ensure that you receive the appropriate phase converter for your application.

Follow these methods to choose the optimal phase converter for your application:

1. Obtain Information. A few fundamental pieces of information are required to choose the best phase converter. Once you’ve completed the sizing and selection worksheet, you’ll have all the information you need to assure your pleasure.

NOTE: Once you’ve finished the worksheet, leave the rest to us. Simply fill out the form online. We will contact you with our recommendation within one business day.

OR

2. Consult the Application Guide to determine the best Phasemaster Rotary phase converter model for your application.

3. Choose the appropriate conversion size from our sizing tables.

4. Determine if extra accessories, such as weatherproof enclosures, lightning protection, and transformers, are required for your application.

If you have any questions, please email us or call 574-236-6220 to speak with one of our application engineering consultants.

How to Use Sizing and Selection Tables

A phase converter is rated in two ways. The first and most essential rating is the maximum number of motor horsepower that the converter can start. This might be a single motor or a group of motors. Starting one 10 HP motor, for example, is the same as starting two 5 HP motors at the same time. In this scenario, a 10 HP converter is appropriate.

The second rating is the Maximum or Total HP, which functions concurrently but does not begin simultaneously. A Type MA Phasemaster® converter can typically run three times as many HP as it can start. A 15 HP, a 10 HP, and a 5 HP motor (for a total of 30 HP) that start independently but run simultaneously might be powered by a 15HP converter. The greatest motor that can be started is 15HP, and the maximum load is 45HP.

Never sum your total operational HP for sizing purposes unless all of your loads start at the same time. If the total HP working at the same time exceeds the Maximum HP capability of that converter, upgrade to a larger model. For size considerations, use the largest motor. Check with Kay Industries to confirm your choice.

Never size your converter based just on total amperage; you will most likely overpay for that much capacity.

If you have any questions, please email us or call 574-236-6220 to speak with one of our application engineering consultants.

Type MA-A

Includes fuses and a starter to turn the converter on and off as needed by the load. The MA-A is suitable for unattended or cyclical loads such as compressors, elevators, and air conditioners. When ordering, please specify the voltage!

Model No. Largest HP Max HP

Dimensions L

W H Wt.
SD- 60-A 1.5 3 12 12 14 75
MA-00-A 2 4 12 12 15 100
MA-0-A 3 6 12 12 15 120
MA-1-A 5 10 14 17 18 225
MA-1B-A 7.5 15 17 20 22 277
MA-2-A 10 20 19 20 25 327
MA-3-A 15 30 20 22 26 444
MA-4-A 20 40 22 24 27 450
MA-5-A 25 50 25 24 27 515
MA-6-A 30 60 25 27 33 660
MA-7-A 40 80 26 27 33 805
MA-8-A 50 100 27 29 35 925
MA-9 60 120 30 29 35 970

Type MA-R

In a side-mounted enclosure, there is a factory installed disconnect switch, fuses, and terminal blocks. When ordering, please specify the operational voltage.

Model No. Largest HP Max HP

Dimensions L

W H Wt.
SD- 60-R 1.5 3 12 12 14 75
MA-00-R 2 4 12 12 15 100
MA-0-R 3 6 12 12 15 120
MA-1-R 5 10 14 17 18 225
MA-1B-R 7.5 15 17 20 22 277
MA-2-R 10 20 19 20 25 327
MA-3-R 15 30 20 22 26 444
MA-4-R 20 40 22 24 27 450
MA-5-R 25 50 25 24 27 515
MA-6-R 30 60 25 27 33 660
MA-7-R 40 80 26 27 33 805
MA-8-R 50 100 27 29 35 925
MA-9-R 60 120 30 29 35 970

Type PI

Completely enclosed converters for pivot irrigation or other heavy-duty outdoor applications. Auto controls are also provided for unattended sites.

Model No. Largest HP Max HP

Dimensions L

W H Wt.
PI- 6 2 4 13 16 14 120
PI-10 3 6 14 16 14 136
PI-15 5 10 17 20 14 207
PI-20 7.5 15 20 21 20 307
PI-30 10 20 22 21 20 372
PI-40 15 30 25 26 20 503
PI-50 20 40 26 28 21 720
PI-60 25 50 28 28 21 770
PI-80 30 60 31 30 24 905
PI-100 40 80 31 30 33 1005
PI-120 50 100 33 24 28 1570