Subject: SELV vs ELV
We've been looking at a PSU which has UL recognition. Our -48V DC CO
equipment has been assessed with respect to being powered from SELV source
and this is stated in our UL report, but now that I've received a copy of
the UL report for the PSU, it states that the output is ELV
Hi Dave:
the UL report for the PSU, it states that the output is ELV, not SELV,
because of the connector interfacing the modules to the rack.
I don't see how a connector makes the difference
between ELV and SELV.
The terms ELV and SELV imply the energy is
derived from a hazardous
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