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What is the maximum earth loop Impedance Zs value for the circuit breakers used in the Powerpact 4 panel board?

The maximum earth loop Impedance figures can be found on the attached pdf files.

16A to 250A
The standard MCCB's used for ratings of 16A to 250A with part numbers beginning with "MGP..." are identical to the NSX with thermal magnetic trip units.


400A & 630A
The standard MCCB's used for ratings of 400A & 630A with part numbers beginning with "MGP..." are identical to the NSX with Micrologic 2.3 trip units.
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