Can anyone explain what the meaning of the suffix letters "B" and "L" are on Siemens breaker panels?
For example, what is the difference between SN2040B an SN2040L?
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1 Answer
The difference is B = Main Breaker, L = Main Lug.
Ref: Siemens Product Literature page 8/9.
answered Jan 27 at 20:27
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Sometimes a 2-line answer including a link is really all there is to it. And for those who complain about Big Orange, their website happens to be a great resource for finding product literature, though inconsistent - one panel product page will have the literature and warranty and installation PDFs and another (same brand) will have just the installation PDF, etc. Jan 27 at 21:03
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1Page "2" (actual 4) here decrypts the entire model number. Jan 28 at 1:53
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@Harper-ReinstateMonica Correct with respect to the B vs. L issue. But that document does not actually list the SN part numbers. As it turns out (for obvious and expected reasons), B vs. L means exactly the same in both documents, but they cover different products. Jan 28 at 1:59
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1Yeah there's that. However in decrypting an SN I found they too conform to this format. Jan 28 at 2:03