Residual current device
In the case of a residual current device (1) having a test circuit (2) for production of a fault test current, which test circuit (2) has at least one first test resistor (3) and a test button (4), it is proposed for accurate checking of the serviceability, in particular independently of the mains v...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | In the case of a residual current device (1) having a test circuit (2) for production of a fault test current, which test circuit (2) has at least one first test resistor (3) and a test button (4), it is proposed for accurate checking of the serviceability, in particular independently of the mains voltage, that the test circuit (2) has a control circuit (5), and that the control circuit (5) be designed such that a fault test current which is produced by the test circuit (2) - essentially independently of the applied voltage from an electrical mains system to be protected - has a predetermined and essentially constant value. |
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