Chint Moulded Case Circuit Breaker 3 Pole (NXM-630 S) 500,630 Amp


  • This 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.
  • With a current rating of up to 2500A,
  • MCCBs are used mostly in industrial areas on high voltage and heavy duty machinery.
  • These breakers are used instead of miniature circuit breakers (MCBs) in large scale PV systems for system isolation and protection purposes.
  • The MCCB uses a temperature sensitive device (the thermal element) with a current sensitive electromagnetic device (the magnetic element) to provide the trip mechanism for protection and isolation purposes.
  • This enables the MCCB to provide:
    • Overload Protection,
    • Electrical Fault Protection against short circuit currents, and
    • Electrical Switch for disconnection.


Item: MCCB (shaped case electrical switch) 3 post

Brand: Chint

Model: NXM-630 S

Number of post: 3

Appraised Current: discretionary 500,630 (should compose)

Recurrence: 50/60 Hz

Appraised Short out Breaking Limit: 50 kA (50,000A)

Mounting: with screw

Mounting mode: vertical or even

Type: fixed

Endorsements: KEMA, ESC, UKrSEPRO, PCT, RCC, KC

Standard: IEC/EN 60947-2


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