Chint Residual Current Circuit Breaker 30mA 6kA – NB1L

NB1L Residual Current Operated Circuit Breaker with Over-current Protection(Magnetic)
1.1 Function
    Personnel and fire protection: Cable and line protection against overload and short-circuits.
1.2 Selection
    Rated residual operating current
    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.
    Tripping class
    AC class 
    Tripping is ensured for sinusoidal,alternating currents, whether they be quickly applied or slowly increase.
      A class 
     Tripping is ensured for sinusoidal, alternating residual currents as well as for pulsed DC residual currents, whether they be quickly applied or slowly increase.
      Tripping curve
      B curve (3-5 In) protection and control of the circuits against  overloads and short-circuits; protection for people and big length cables in TN and IT systems.
      C curve (5-10 In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.
1.3 Approvals and certificates
    Detailed information, please refer to Certificates Table on the last page.