To GaryAviation,

So one of over one hundred customers is challenging your certification? Does this halt your sales or can you simply tell this one customer to take a hike? Losing <1% of your customers doesn't seem too bad, or is this process of filing a complaint more formal?

A more generic question perhaps someone can answer: I have interpreted the Low Voltage Directive in such a way that it is my understanding that a device powered by an external 24VDC Wall Wart power supply would NOT fall under the directive. The device does not accept or provide any voltages higher than 24VDC. The Wall Wart is CE certified and of course would plug into the mains.

Thanks,

John