Each one of these breakers, MCCB, ELCB or the earth leakage alarm breakers, is combined with a MDU.
The MDU, Measuring Display Unit, means a device having functions of measurement, indication, or transferring the measuring data.

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1. 1.The measuring device is contained in the circuit breaker, and achieved smaller spaces / less works for mounting.
2. 2.We monitor the electrical circuits, and contribute to saving energy by visualizations. Also tasmitting of electrical circuit information to the upper systems is available.
3. 3.By recording accident causes and accident current in memories, so accident prevention and facility protection is possible.