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

BRAND: CABAC
SKU: 269425
$2,637.50 List price: $3,516.60
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Chint NM8N 400A 3P MCCB features 50kA breaking capacity, basic electronic trip unit and a 630A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N 630 Frame MCCB, 400A Electronic Moulded Case Circuit Breaker, 3-Phase MCCB

Technical Specifications
  • Circuit Breaker Type: Moulded case circuit breaker
  • Poles: 3P
  • Rated Current: 400A
  • Frame Size: 630A
  • Trip Unit: Basic electronic type with DIP adjustment
  • 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
  • Current Adjustment Range: 250–400A, 0.4–1.0 x In
  • Utilisation Category: Category B
  • Protection Functions: Overload and short-circuit protection
  • Ingress Protection: IP00, or IP40 with terminal covers
  • Power Dissipation: 72W
  • Reference Standard: EN 60947-2
  • Dimensions (H x L x W): 255mm x 140mm x 113mm
  • Weight: 6.46 kg
Key Features
  • High 50kA ultimate and service breaking capacity at 380–415V AC
  • 630A frame with 400A adjustable electronic trip rating
  • Three-pole configuration for three-phase power distribution
  • Suitable for switchboard mains, sub-mains and industrial distribution systems
  • Electronic DIP adjustment supports flexible overload protection settings
  • Category B circuit breaker suitable for selectivity and time-delayed protection applications
  • Compatible with a range of optional accessories
  • Suitable for vertical or horizontal mounting and top or bottom line entry
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000 and the manufacturer's instructions. Confirm prospective fault current, discrimination, cable capacity, clearances and enclosure suitability before installation.
Applications
  • Main switchboard protection
  • Sub-main circuit protection
  • Commercial and industrial power distribution
  • Power centres and distribution switchboards
  • Motor control centres
  • Protection of large electrical equipment and feeders
Standards & Compliance
  • AS/NZS IEC 60947.2 for low-voltage circuit breakers
  • AS/NZS 3000 for installation and wiring practices
Environmental Benefits
  • Long service life and high mechanical durability can reduce replacement frequency and associated waste
  • Moulded case construction includes durable materials suitable for end-of-life material recovery
  • Electronic protection can support accurate overload settings and reduce unnecessary equipment damage
  • CHINT NM8N series documentation includes RoHS declarations for restricted substances compliance
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels, unless a signed supply contract specifies different terms.

Available Now

Available through authorised CHINT distributors in Australia.

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