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What is the standard amps per square inch on panelboard bussing?

Issue:
What is the standard amps per square inch on panelboard bussing?

Product Line:
Circuit breaker panelboards sold and supported in the USA.

Environment:
Application

Cause:
Specification

Resolution:
Manufacturers have a choice of testing their panels by amps per sq. inch or heat rise.
Schneider chooses to test by the heat rise method as we feel it is a better test of how connections and joints will react based on actual temperatures rather than the sq. in.
calculation method. We don't have an amps per sq. in. rating for our panels. If the customer requires such a rating, you can select the High Density Buss option of 750 amps per sq in for Aluminum or 1000 amps per sq in. for Copper in product selectors.

 
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