The Necessity Of Breaking Capacity In The Filing Information Of Low-voltage Pole-mounted Circuit Breakers

In the process of power distribution system design and equipment selection, the filing information of Lv Pole Mounted Circuit Breakers must include the interruption capacity, which is a basic standard of technical and regulatory requirements in the industry.

In electrical engineering standards, the breaking capacity of a circuit breaker indicates the highest current it can interrupt in the event of a short circuit. This parameter directly reflects the circuit breaker's performance under extreme operating conditions. The absence of this item in the filing information will fail to demonstrate whether the product can complete its interruption action under the highest possible short-circuit current conditions in the system, which will affect engineering design and technical review judgments.