How do you increase the KA rating of a breaker?

Answer 1

Increasing a breaker’s KA rating involves using one with a higher interrupting capacity or adding current-limiting devices like fuses to reduce fault energy. Another option is using a series-rated combination, where the upstream breaker absorbs excess fault current. Upgrading the electrical system’s design, including stronger conductors and Transformers, also helps manage higher short-circuit currents. Always verify system compatibility before making changes to ensure safety and compliance with electrical codes.