400A 3P MCCB Schneider Electric Molded Case Circuit Breaker

400A 3P MCCB Schneider Electric Molded Case Circuit Breaker

Technical Specifications
  • Flexible installation, switchboard or wall-mount
  • Current adjustment from 0.4 to 1 times the rating of circuit breaker
  • Thermal magnetic protection for breakers below 400A
  • Integrated earth protection available on request
  • Auxilliaries ordered separately
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400A 3P MCCB Schneider Electric Molded Case Circuit Breaker – Applications

ComPact NSX 400A 3P MCCB Schneider Electric Molded Case Circuit Breaker is designed to meet your needs from thermal-magnetic to advanced MicroLogic trip units.

An excellent choice for all standard and specific applications, including:

  • Standard applications: industries, buildings, infrastructures
  • Specific applications demanding high performance: marine, oil and gas extraction and processing, mining operations, metals and minerals production, and data centers
  • Source-changeover systems (changeover panels): service sector (hospital operating rooms, computer rooms, ), industry (assembly lines, ship engine rooms, etc.), infrastructures (runway, railway, etc.)

Breaker-status indications, during normal operation or after a fault

A single type of contact provides all the different indication functions:

  1. OF (ON/OFF) indicates the position of the circuit breaker contacts
  2. SD (trip indication) indicates that the circuit breaker has tripped due to:
    • an overload
    • a short-circuit
    • an earth fault (Vigi)
    • operation of a voltage release
    • operation of the “push to trip” button
    • disconnection when the device is ON.

The SD contact returns to de-energised state when the circuit breaker is reset.

  1. SDE (fault-trip indication) indicates that the circuit breaker has tripped due to:
  • an overload
  • a short-circuit
  • an earth fault (Vigi)
  1. SDV indicates that the circuit breaker has tripped due to an earth fault. It returns

de-energised state when the Vigi module is reset.

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400A 3P MCCB400A 3P MCCB Schneider Electric Molded Case Circuit Breaker
KSh0.00 including VAT
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