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US 2020/0288599 A1Published application
Low-voltage switching device having an asymmetrically guided air flow-based cooling system
AssigneeSiemens Aktiengesellschaft
InventorsPeter KAESBAUER, Norbert REICHENBACH
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Abstract
A low-voltage switching device includes a housing in which power-electronic components are arranged in the region of ventilation of a fan. In an embodiment, the power-electronic components operate under temperature regulation by virtue of an air flow that is guided asymmetrically proceeding from the fan. Therefore, the low-voltage switching device can be operated at a nominal device current range of up to 650 A as the result of the asymmetrically guided air flow.
Claims25
A low-voltage switching device, comprising:
- a housing, power electronic components being arranged in the housing in a region of ventilation of a fan, the power electronic components being configured to operate under temperature regulation by virtue of an air flow, originating from the fan and guided asymmetrically to create an asymmetrically guided air flow, the low-voltage switching device being configured to operate with a nominal device current range of up to 650 A as a result of the asymmetrically guided air flow.
Dependencies are inferred from the claim text.