此时间为从跳闸线圈受电到主触头电弧电流开断为止的总时间。
This is the total time from energizing the trip coil until the interruption of current on the primary arcing contacts.
如有故障发生，熔断器会断开，使所有故障电流流经跳闸线圈，将断路器断开。
If a fault occurs, the fuse ruptures diverting all the fault current through the trip coil, tripping the breaker.
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