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NDM2Z Series DC Molded Case Circuit Breaker
Updated:August 12,2022 15:01PM

NDM2Z series MCCB is applicable to a DC power circuit, in which rated operational voltage is DC250V and rated operational current is to 800A, the breaker is used for allocating electric power, protecting circuit and power equipment. The breaker has overload and short circuit protections.
2021 Quick Selection Guide »

NDM2Z-63-3P
NDM2Z-125-3P
NDM2Z-250-3P
NDM2Z-400-3P
NDM2Z-630-3P

Features

Features of NDM2Z Series

  • The circuit breaker features, high breaking capacity, short flashover, vibration resistance and etc.

 

Downloads and support

Find out more about NDM2Z Series

NDM2-Series-MCCB-Datasheet.pdf 

 

FAQs

Questions & Answers for NDM2Z Series

  • What is a molded case circuit breaker?
    Moulded Case Circuit Breakers Explained. ... A moulded case circuit breaker (MCCB) is a type of electrical protection device that is used to protect the electrical circuit from excessive current, which can cause overload or short circuit.
  • 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).
  • What is MCCB and its working?
    Molded Case Circuit Breaker (MCCB) is a circuit breaker and trip device assembled in a mould case. Also it can automatically cut off electric power in case of overload and short circuit. It is meant for higher rated current and is commonly used in Industrial applications.
  • What causes MCCB to trip?
    Circuit overloading is known to be the most common reason for circuit breaker tripping. It simply means that we're running too many heavy power-consuming devices at the same time on the same circuit. The next most dangerous cause is a short circuit.
  • How do molded case circuit breakers work?
    The traditional molded-case circuit breaker uses electromechanical (thermal magnetic) trip units that may be fixed or interchangeable. An MCCB provides protection by combining a temperature sensitive device with a current sensitive electromagnetic device. Both these devices act mechanically on the trip mechanism.
  • Why we use Mccb instead of MCB?
    If evaluated from their power capacities, the MCB is essentially used for low-current requirements, such as, home wiring or small electronic circuits; while the MCCB is better used for high-power requirements. Type of electrical switch which protects the circuit from overload or short circuit.

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