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NDB6Z-125 Series Circuit Breaker
Updated:August 12,2022 16:14PM

Nader NDB6Z-125 series MCB is suitable for AC / DC 50Hz/ 60Hz, rated voltage DC60V to DC1200V, rated current 63A to 125A power lines, as overload and short-circuit protection of power facilities and electrical equipment, as well as infrequent conversion of lines and infrequent startup of motors, and as an isolating switch. The product is a high-performance miniature circuit breaker, which is suitable for low-voltage terminal power distribution in the fields of photovoltaic, industry, energy, communication and infrastructure. The circuit breaker complies with GB/T14048.2 and IEC60947-2 standards. The product has accurate protection characteristics, high breaking capacity, stable action performance, small size and beautiful appearance
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Features of NDB6Z-125 Series

  • High breaking, zero flashover.
  • Safe isolation function, compact contact system structure, more reliable operation.
  • Contact status indication.


Technology data

Technology data for NDB6Z-125 series

Impulse voltage endurance 4000V
Altitude ≤2000m
Ambient temperature -40℃~+70℃
Meet a criterion IEC 60947-2
Instantaneous Tripping Characteristic Type C


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Questions & Answers for NDB6Z-125 series

  • What is the function of miniature circuit breaker?
    A Miniature Circuit Breaker (MCB) is an automatically operated electrical switch used to protect low voltage electrical circuits from damage caused by excess current from an overload or short circuit.
  • What is miniature circuit breaker how it works?
    A miniature circuit breaker (MCB) automatically switches off the electrical circuit during an abnormal condition of the network means in overload condition as well as faulty condition. Nowadays we use an MCB in a low voltage electrical network instead of a fuse. Handling an MCB is electrically safer than a fuse.
  • What is mean by miniature circuit breaker?
    miniature circuit breaker: a small trip switch operated by an overload and used to protect an electric circuit, esp a domestic circuit as an alternative to a fuse.
  • How does a house breaker work?
    Inside each circuit breaker is a spring hooked over a small piece of solder (a melt-able fusible alloy). Each breaker is connected to an electrical wire that runs through your house. The electricity that flows through your house runs through the solder.
  • What is the advantage of miniature circuit breaker?
    MCB (Miniature Circuit Breaker) is a circuit breaker with optimum protection facilities of overcurrent and short circuit only. Its basic function is to detect the fault condition and interrupt the current flow. it avoids overheating in case of excess current & provides fire protection.
  • What is the difference between MCCB and MCB?
    MCB is miniature circuit breaker which is used to break small currents. Like in domestic LT circuits. The ratings usually end up to 100 A. MCCB is a Module case circuit breaker which has a rugged construction as it can break larger currents usually from (100-1000A).