Thanks for the response! I'm not quite sure what "class 2" is. Is it
electrical shock resistance (perhaps double insulation and a high
hipot test) or fire resistance (over temperature shutdown or similar),
or power output limit (limiting fire creation capability of connected
equipment), or some or all? I'm just looking for ways to reduce the
testing costs for UL listing of a device. I heard my employer was
charged $16k to test a device with a UL listed power supply, UL listed
power inlet/line filter, and UL listed power switch. Everything else
was low voltage on the power supply output. I understand that each of
these components must be used within their limits (there was a
question as to whether the power switch would handle the power supply
inrush current). But, I look at a typical PC power supply that has all
the line connected components sealed in the box. If we were to use
something like that (but down in the 50W area), would it decrease our
testing costs? If so, who makes supplies like that (that would just
stick out our rear panel and provide us with "safe" DC inside the
box)?
What else can we do to reduce testing costs?
THANKS!
Harold
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