NB1L RCBO
![](/files/images/ab/11/ab1109b87b80b8e7f4bef10443a001b0.jpg)
NB1L Residual Current Operated Circuit Breaker with over-current protection (Magnetic)
Personnel and fire protection: Cable and line protection against overload and short-circuits.
I∆n ≤30 mA: additional protection in the case of direct contact.
I∆n ≤300 mA: preventative fire protection in the case of ground fault currents.