UL 244A

UL 244A Standard for Solid-State Controls for Appliances

These requirements cover component electronic controls intended to be factory installed on or in appliances and other utilization equipment rated 600 V or less, used in ordinary dry locations as defined in the National Electrical Code, NFPA 70, and that comply with the requirements for such appliances and equipment.

For a control covered by this standard, it is assumed that:

    
 	
  • No voltage greater than 600 V above ground will be present in a control
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  • An isolation transformer, if provided, will generally furnish power at a lower potential than the primary voltage
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  • The output of the control will not be located in a circuit operating at greater than 600 V above ground in the end-use product
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If conditions other than these are provided, consideration shall be given to the need for additional requirements.

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