NB1-63H CHINT MCB Miniature Circuit Breaker

NB1-63 CHINT MCB Miniature Circuit Breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems. Protection of circuits against short-circuit currents, protection of circuits against overload currents, switch, isolation.

Tripping C curve (5-10In): protection for resistive and inductive loads with low inrushcurrent.

1-pole, AC, 13A, C-curve, fork type busbar connection from below
6kA, IEC/EN 60898-1, 10kA; (Icu=10kA IEC/EN 60947-2)

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  • Excellent breaking capacity
  • Double connection function of lead wire and bus bar
  • Stored energy operation, fast closing, long service life
  • Convenient installation, disassembly
  • Contact on-off indication, higher security
  • Green environmental protection and energy saving


  • Ambient temperature:-35℃~+70℃(Refer to 5.3)
  • The atmosphere condition:≤95%
  • Pollution degree:II
  • Altitude:≤2000m(if exceed 2000m,Refer to 5.4)
  • Rate Current In: 1A,2A,3A,4A,6A,10A,13A,16A,20A,25A,32A,40A,50A,63A
  • Number of poles: 1P,2P,4P
  • Tripping curves: C Type,(7~10)In
  • Electrical and mechancial life
  • Electrical life:> 1500
  • Mechancial life:>20,000
  • Rated impulse withstand voltage Uimp:4KV