| 摘要 |
A low-voltage, high-power safety switching device is described, one wall part of which (for example, 3) exhibits a hole (8, 9) for tool access to a voltage-carrying element of the device (for example, gripping lug 2). In order to create such a switching device, which indeed exhibits at least one hole in a wall part, so that testing is possible through access to voltage-carrying elements but still the conditions for the class of protection are simultaneously ensured, according to the invention it is proposed that the hole (8, 9) be provided in a disc (5) which is guided movably at a distance from the device element (2) over a recess in the wall part between a closing position (Figure 1) and a test position in such a way that the hole (8, 9) in the closing position of the disc (5) is closed by a part of the housing (for example, transverse web 6) and is located open over the device element (2) in the test position of the disc (5). <IMAGE>
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