Control or Power Circuit per UL508A

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J-No

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Hi All,

I have a question regarding the load side of a power supply; specifically a 480VAC to 24VDC, 40A PS. If the 40A is feeding a load, such as an audio amplifier, would it still be considered a Control Circuit as per UL508A or a Power Circuit? I have heard that since it is a 24VDC power supply then it is automatically considered a control circuit. I don't agree but can't find anything specific for or against.

Thanks,
J
 
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