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What is the maximum rating for our NQ main lug only and main breaker off the shelf or RTI panelboards?

What are the available ampere ratings of our RTI NQ panels?
Product Line:
The maximum ampere rating for MLO NQ RTI panels is 600A and 400A for the main breaker panels.
Below are the ampere ratings in increments:
NQ MLO = 100, 225, 400, and 600.
NQ MB = 100, 225, and 400.

For a MB 600A panel, this would only be available as factory assembled.
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