Hi, in this video, I want to raise the awareness about using DC-MCBs as switching devices within the (high- voltage) PV-DC circuit as well as they are mostly used anywhere else too. This is a safety issue which must be tackled very carefully. Polarized DC-Breakers are even started to be banned out of our breaker boxes!

Video-clip sources:
   • Do not use this type of DC Isolator f...  
   • DC Circuit Breaker Fires  

In this video polarity, flow of current, correct connection, etc. is explained by an expert:
   • Polarity DC Breakers Explained  

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