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MCCB 3P 400A 50kA Standard Electronic 630A Frame NM8N Chint

BRAND: CABAC
SKU: 269475
$2,183.70 List price: $2,911.60
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Chint NM8N 400A 3P MCCB features 50kA breaking capacity, standard electronic trip unit and a 630A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N-630S EN 400A 3P MCCB, Electronic Moulded Case Circuit Breaker, 400A 50kA MCCB

Technical Specifications
  • Product Series: NM8N
  • Model: NM8N-630S-EN-400/3/23
  • Number of Poles: 3P
  • Rated Current: 400A at 40°C
  • Frame Size: 630A
  • Breaking Capacity: 50kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Trip Unit: Standard electronic trip unit with DIP adjustment
  • Adjustable Current Range: 250–400A, 0.4–1.0 x In
  • Utilisation Category: Category B
  • Frequency: 50/60Hz
  • Ingress Protection: IP00, or IP40 with terminal covers
  • Mechanical Durability: Up to 15,000 operating cycles
  • Electrical Durability: Up to 4,000 operating cycles
  • Power Dissipation: 72W
  • Dimensions (H x L x W): 255mm x 113mm x 140mm
  • Weight: 5.96 kg
Key Features
  • Three-pole moulded case circuit breaker for low-voltage AC distribution
  • 50kA short-circuit breaking capacity at 380/400/415V AC
  • 630A frame with 400A rated electronic trip unit
  • Adjustable overload and short-circuit protection settings
  • Suitable for switchboard mains and sub-mains protection
  • Supports overload, short-circuit and undervoltage protection functions
  • Suitable for fixed installation and compatible with optional accessories
  • Top or bottom line connection and vertical or horizontal mounting options
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, AS/NZS 3000 and applicable switchboard requirements. Confirm discrimination, prospective fault current, conductor sizing and thermal derating before commissioning.
Applications
  • Switchboard mains protection
  • Switchboard sub-mains protection
  • Commercial and industrial power distribution
  • Power centres and electrical distribution boards
  • Motor control centres where suitable protection coordination is confirmed
  • Protection of cables, equipment and downstream distribution circuits
Standards & Compliance
  • Applicable product standard: AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • Installation should comply with AS/NZS 3000 and the requirements applicable to the completed switchboard assembly
  • Verify Australian certification and RCM requirements for the specific supplied configuration before installation
Environmental Benefits
  • Electronic protection settings can improve system coordination and reduce unnecessary equipment replacement caused by nuisance tripping
  • RoHS documentation is available for the NM8N series, supporting restriction of hazardous substances
  • Long mechanical and electrical service life can reduce replacement frequency and associated waste
  • Metallic components and engineering plastics may be recoverable through appropriate electrical equipment recycling at end of life
Warranty Information

CHINT's general warranty policy for low-voltage apparatus provides 27 months from the date of manufacture when products are sold through authorised channels, subject to applicable contract terms and exclusions.

Available Now

Available through authorised CHINT distributors in Australia.

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