I suggest that John has “nailed it”, as he often does.
Ralph
From: John Woodgate
Sent: Wednesday, May 15, 2024 7:26 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] SCCR Rating Question
I cant help you with a reference to a standard, but there is a language problem
and I think
Brian —
I am equally mystified by qualifying an SCCR with a voltage. Perhaps you could network into a friendly UL 408a panel shop and see what they say.
Mike Sherman
Sherman PSC LLC
On 05/15/2024 9:05 AM -05 Brian
I cant help you with a reference to a standard, but there is a language
problem and I think I can help with that, in the context of 'confusion'.
The 'SSCR voltage' on the nameplate actually means 'Minimum permitted
value of the Maximum voltage of the SSCR'. Obviously those words are too
long
I appreciate the replies, but I am not getting the information I am
seeking.
Some machines have just the SCCR Rating, such as
*SCCR: 10kA*
but a few machines we have looked at include a reference to the "Max
Voltage", such as
*SCCR: 10kA RMS Symmetrical, 480V Maximum*
What is the source,
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