Click here to download HDB9 Series brochure. (8MB PDF file)

HDB6s/HDB9 18mm Miniature Circuit Breaker

Standard: IEC 60898-1
Trip Curve: B,C and D curves


  • Protection of circuits against overload currents
  • Protection of circuits against short-circuit currents
  • Control
  • Isolation



  • High breaking capacity up to 10kA
  • “Class 3” current energy limiting capacity
  • High quality raw material with ambient temperature rating of -30℃ ~ 70℃
  • Thermoplastic material shell, impact resistance, fire retardancy
  • With “QUICK CLOSED” technology:
    Electrical Durability: 10000 times
    Mechanical Durability: 20000 times


Some of the Miniature Circuit Breaker on stock:

HDB9H series, 1-63A, 1P, 10kAIC @230V
HDB9H Series, 1-63A, 2P, 10kAIC @ 230V
HDB9H Series, 1-63A, 3P, 10kAIC @ 230V
HDB9H Series, 1-63A, 4P, 10kAIC @ 230V
HDB6s Series, 1/2/3/4/6/10/16/20/25/32/40/50/63A, 1P, 6/4.5kAIC @230V
HDB6s Series, 1/2/3/4/6/10/16/20/25/32/40/50/63A 2P, 6/4.5kAIC @400V
HDB6s Series, 1/2/3/4/6/10/16/20/25/32/40/50/63A, 3P, 6/4.5kAIC @400V
HDB6s Series, 1/2/3/4/6/10/16/20/25/32/40/50/63A, 4P, 6/4.5kAIC @400V