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What is the difference RCB and RCBO?By : Sankalp - 09-Jan-2018 
What is the difference between Residual Circuit Breaker (RCB) and Residual Circuit Breaker for Overcurrent Protection?
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Arpit 09-Jan-2018

1. RCCB - Residual Current Circuit Breaker, no integrated overload protection. When the unit is used for 3-phase protection, it will trip by sensing the leakage current by summation of the phases and neutral current in event of exceeding the preset earth leakage current value.

2. RCBO - This is a type of RCCB but with integral overload protection.