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MCCB 4P 400A 50kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268958
$2,911.60 List price: $3,882.10
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Chint NM8N 400A 4P MCCB features 50kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 400A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-400 MCCB, 4P 400A moulded case circuit breaker, thermal-magnetic circuit breaker

Technical Specifications
  • Frame Size: 400 A
  • Rated Current: 400 A
  • Number of Poles: 4P
  • Trip Unit: Thermal-magnetic
  • Breaking Capacity Icu: 50 kA at AC 380/400/415 V
  • Service Breaking Capacity Ics: 50 kA at AC 380/400/415 V
  • Rated Operational Voltage: Up to 690 V AC
  • Rated Insulation Voltage Ui: 1,000 V AC
  • Rated Impulse Withstand Voltage Uimp: 8 kV
  • Current Adjustment Range: 0.7–1.0 x In
  • Utilisation Category: A
  • Connection: Fixed front connection
  • Electrical Life: Up to 4,000 cycles at AC 415 V and rated current
  • Mechanical Life: Up to 15,000 open-close cycles
  • Dimensions (H x L x W): 255mm x 113mm x 185mm
  • Weight: 6.7 kg
Key Features
  • Four-pole construction with protected neutral
  • Thermal-magnetic overload and short-circuit protection
  • 50 kA short-circuit breaking capacity at 380/400/415 V AC
  • Adjustable thermal trip current from 70% to 100% of rated current
  • Suitable for isolation applications
  • Designed for low-voltage power distribution and switchboard protection
  • Accessory-compatible design for selected auxiliary and control devices
Professional Installation Requirements
  • Installation, testing and commissioning must be carried out by a licensed electrician in accordance with the manufacturer's instructions, applicable wiring rules and switchboard requirements. Confirm fault levels, discrimination, conductor sizing and local product approval before energisation.
Applications
  • Main switchboard incomer protection
  • Commercial and industrial power distribution boards
  • Power centre and tertiary switchboard assemblies
  • Motor control centre supply protection
  • Large commercial building electrical distribution systems
Standards & Compliance
  • AS/NZS IEC 60947.2: applicable Australian and New Zealand standard for low-voltage moulded case circuit breakers; verify product marking, certification and RCM requirements before installation
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated material waste
  • Thermal-magnetic protection helps prevent damage to downstream equipment and electrical assets during overload and short-circuit conditions
  • Metallic and thermoplastic components may be recoverable through appropriate electrical equipment recycling at end of life
Warranty Information

CHINT low-voltage apparatus is generally covered for defects in materials and workmanship for 27 months from the date of manufacture when purchased through authorised sales channels, subject to the applicable contract and warranty conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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