BX9Z DC Mini Circuit Breaker


BX9Z series DC mini Circuit Breaker is suitable in normal current 63A and below, directly-current rated voltage 250V-1000V, uses for carries on the overload short-circuit protection to the current electrical power distribution system’s facility and the electrical equipment, and used in professional electric power, posts and telecommunications transportation, industrial and mining establishments, and so on. It comply with IEC60898-2 standards.

Technical Data

Standard IEC 60898-2
Number of poles 1P 2P 3P 4P
Rated working voltage (V DC) 250 500 750 1000
Frame level 63A
Rated current (In) (A) 6, 10, 16, 20, 25, 32, 40, 50, 63
Rated insulation voltage Ui (V DC) 1000/1200
Tripping characteristics C
Tripping type Thermal-magnetic
Rated ultimate short-circuit breaking

capacity (Icu)

Rated service short-circuit interrupting capacity (Ics) 10kA
Mechanical life (times) Actual 20000 times
Standard 9700 times
Electric life (times) Actual Average 1000 times
Standard 300 times
Overvoltage category
Pollution degree 2
Ingress protection IP20
Relative humidity ≤95%
Vibration Acc.to IEC60068-2-6
Shocks Acc.to IEC60068-2-27
Terminal capacity 2.5-35mm2
Fastening torque fo teminals 2.0-2.5N·m
Ambient temperature -5°C~+45°C
Storage temperature -25°C~+75°C
Installation method DIN35mm
Elevation ≤2000m



BX9Z 63A DC MCB Dimension

19 MB

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