Circuit breaker with optimised housing stabilisation, in particular at high switching capacities

摘要

The power switch has a housing accommodating a switching device region comprising a quenching chamber device and a contact slide device with the movable contact portions. The movable contact portions are positioned opposite to fixed contact portions. Another switching device region is provided with an overcurrent trip group consisting of a short-circuit release portion and an overload release portion. The housing walls in the region of another switching device range are formed with barbs of similar housing structures (13).