Chint NB1L RCBO

Chint original NB1L RCBO 1P+N B16 C10 C16 C20 C25 C40 C63 CHNT Residual Current Circuit Breaker with Over current Protection

Chint NB1L Residual Current Operated Circuit Breaker with over-current protection (Magnetic)

1. General

1.1 Function
      Personnel and fire protection: Cable and line protection against overload and short-circuits.

1.2 Selection
      Rated residual operating current
      IΔn ≤30 mA: additional protection in the case of direct contact.
      IΔn ≤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.