ABB BC159 is an active, unclassified catalog component identified by MPN BC159, with no further electrical or mechanical ratings supplied for general panel-builder and controls inventory reference.
When a BOM line cites BC159, the practical move is to confirm the original panel reference and frame size against the drawing before specifying. The BC159 string on its own does not carry current, voltage, or dimensional data, so a substitution decision has to come from the panel-side documentation rather than this catalog row.
The data on file does not support a direct swap. BG150-14-20 is a sized stainless-steel screw lug in malleable iron with its own AWG range and conduit throat, while BC159 carries no ratings to match against. Treat them as separate SKU lines.
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