Siemens Aktiengesellschaft

Lukas Kalous

Milos Petracek

Pavel Mrtvy

Pavel Naiman

Zbynek Augusta

Daniel Vavra

Pavel Safar

An assembly device is disclosed for fixing a molded case circuit breaker, including a housing with at least one screw hole for a fixation screw for fixing the molded case circuit breaker to a bus bar. The assembly device includes a screw head holding device for holding a screw head of the fixation screw, the assembly device being configured to be arranged inside a cavity of the housing of the molded case circuit breaker in such a way that a screw head of a fixation screw arranged at the screw hole for mounting the molded case circuit breaker to the bus bar is engageable with the screw head holding device in an engagement direction. Furthermore, a circuit breaker system is disclosed including a molded case circuit breaker and an assembly device. Moreover, a method is disclosed for mounting a molded case circuit breaker to a bus bar.

Assembly device, circuit breaker system and method for improving fixing a molded case circuit breaker to a bus bar

An embodiment relates to an electric switch, particularly an electric circuit-breaker, including a rotor housing that can be turned to an ON and an OFF position and at least one electric contact arm that is mounted rotatably in the rotor housing and can be swiveled jointly with as well as relatively to it. A display element is included that is coupled indirectly or directly to the rotor housing and which in one display position indicates the ON position of the rotor housing and in another display position indicates the OFF position of the rotor housing.

Electric switch

A test button is disclosed for an electrical switching device, especially for a circuit breaker; and an electrical switching device is disclosed, especially a circuit breaker, with a test button. The test button is at least one embodiment is embodied for actuation of a tripping mechanism of the electrical switching device. In this case, the test button actuates the tripping mechanism on the one hand if the test button is actuated manually and on the other hand if a cover element of the electrical switching device is opened. The actuation of the tripping mechanism by way of the test button ensures that the electrical switching device cannot be switched on or tripped respectively.

Growing community of inventors

Vermerovice, Czechia

Lukas Kalous