Autotransformer 20 kV with earth leakage monitor

Datasheet as PDF
Three-phase transformer


Autotransformerwith earth leakage monitor

Autotransformer in a housingEarth leakage monitor


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.

Technical data

Type size: EI 350/350/133
Voltage primary: 3 x 200 V
Voltage secondary: 3 x 400 V
Rated power: 20 kVA
Frequency: 50 Hz
Construction: open, built in a housing IP 23
Weight: 119 kg

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