In this series of videos Electrical Engineering Planet will dive deeply on what is Molded Case Circuit Breaker (MCCB), we will understand what is operating short circuit breaking capacity Ics and ultimate short circuit breaking capacity Icu also we will learn today what is rated operational voltage Ue, rated insulation voltage Ui, rated impulse withstand voltage Uimp consider subscribing to electrical engineering planet channel How to read MCB nameplate: https://www.youtube.com/watch?v=YDBdoV3gh7g Feel Free to visit our Facebook Page https://www.facebook.com/ElectricalEngineeringPlanet/