How many plug in openings will it take to plug in a 400 or 600 amp PBQ fusible bus plug or a 400 or 600 amp PBL circuit breaker unit?

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Issue:
Plug in openings for PBQ fusible bus plug

Product Line:
PBQ fusible bus plug

Environment:
Product Characteristics

Resolution:
All of the 400A and 600A plug-in units (fusible and circuit breaker) plug into one opening but requires space equal to two plug-in openings.