Request a Quote

Simply fill out this form and submit it online, or print a copy and fax it to 574-289-5932,

and we will contact you with a recommendation including our exclusive performance guarantee.

You will receive a response within 24 business hours. 

For immediate assistance, call 800-348-5257 and ask for application and sizing assistance. 

 

 

Step 1: Tell Us About Your Application
Step 2: Technical Information
Step 3: Tell Us How To Contact You

 

 

 

 

Application Data Required

What size single-phase service is available?

 

Why is this important?

The first step in any application is to verify there is adequate 1-phase service for the planned 3-phase load.

Application Data Required

What is the single-phase supply voltage at the service entrance? (208, 230, etc.)? What output voltage is required for the load?

 

Why is this important?

Whatever 1-phase voltage goes in is what comes out 3-phase. If the 1-phase input voltage and 3-phase load voltage are different, a transformer may be needed. The converter output is ALWAYS 3-wire delta. A 4-wire wye output will require the addition of a delta-wye transformer.

Application Data Required

What output voltage is required for the load? What is the single-phase supply voltage at the service entrance?(208, 230, etc.)?

 

Why is this important?

Whatever 1-phase voltage goes in is what comes out 3-phase. If the 1-phase input voltage and 3-phase load voltage are different, a transformer may be needed. The converter output is ALWAYS 3-wire delta. A 4-wire wye output will require the addition of a delta-wye transformer.

Application Data Required

What type of machine is going to be operated on the converter. Be specific, a compressor, fan, lathe, air conditioner, laser, etc.? Does the load consist of a motor, a heater or a rectifier (power supply)?

 

Why is this important?

Single speed AC motors are fairly easy loads to handle. Heater and rectifier loads are more demanding. Computer controlled machine tools and motors which run on variable frequency drives should be reviewed by Kay Industries before selecting a converter.

Application Data Required

How big are the motors (HP), heaters or rectifier? If the load contains heaters or rectifiers, what is the KW rating? “The converter has to put out 60 amps” is a VERY POOR way to select a converter. A converter doesn’t put out anything that the load does not require. The ONLY significant load information is the ACTUAL HP or amperage the load will pull at its full rating.

 

Why is this important?

Converters are sized based the HP or KW rating of the largest single load. A common sizing mistake is to specify the load in amps. Often, the amperage specified is actually the recommended branch circuit size for the load equipment. But the branch circuit breaker is ALWAYS larger than the load. The converter can usually be much smaller thus saving a lot of $$$.

Application Data Required

Starting load. If there is more than one motor or other load device, what is the total HP that will be started together?

 

Why is this important?

Converter sizing is based on the maximum HP it is expected to start. Never add all the motor HP together unless they start at exactly the same time.

Application Data Required

What is the total load that will operate together?

 

Why is this important?

Converters can operate approximately 2-4 times their starting capability.

Application Data Required

Will the load be attended? Does it cycle on and off from its own internal controls such as the case with a compressor, or air conditioner?

 

Why is this important?

A cycling load may require a converter with automatic controls so that the converter can be shut down when the load is off. The converter can run continuously without problem but it’s not economical.

Application Data Required

Where will the converter be installed?

 

Why is this important?

Standard converters are designed for indoor installation. Kay Industries offers totally enclosed converters and weatherproof enclosures for outdoor applications