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DIN EN 60204 “Safety of Machinery” stipulates that auxiliary circuits must be protected with earth leakage monitors in order to increase operating safety.
A changeover contact indicates an earth fault and therefore allows faults to be rectified without the need of expensive downtimes. The device can be provided with an optional fault memory that requires a fault to be acknowledged after it has been rectified. A test button is provided to test the functionality of the device at any time.
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