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MCCB 3P 630A 50kA Thermal Magnetic 800A Frame NM8N Chint

BRAND: CABAC
SKU: 272927
$4,168.80 List price: $5,558.40
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Chint NM8N 630A 3P MCCB features 50kA breaking capacity, thermal-magnetic trip unit and a 800A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Thermal-Magnetic Circuit Breaker, 630A 3P Circuit Breaker

Technical Specifications
  • Rated Current: 630A
  • Frame Size: 800A
  • Number of Poles: 3P
  • Breaking Capacity: 50kA at 380/415V AC
  • Trip Unit: Adjustable thermal-magnetic
  • Thermal Overload Adjustment: 0.7–1.0 x In
  • Instantaneous Short-Circuit Adjustment: 5–10 x In, ±20%
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1,000V
  • Rated Impulse Withstand Voltage: 12kV
  • Mechanical Durability: Up to 15,000 operations
  • Electrical Durability: Up to 2,000 operations at 400V AC
  • Product Standard: IEC/EN 60947-2
  • Dimensions (H x L x W): 300mm x 113mm x 195mm
  • Weight: 10.5 kg
Key Features
  • 50kA short-circuit breaking capacity at 380/415V AC
  • Three-pole configuration for three-phase distribution systems
  • Adjustable thermal protection for overload conditions
  • Adjustable magnetic protection for short-circuit conditions
  • 800A frame with 630A rated current
  • Suitable for fixed front connection applications
  • Can be used for switchboard mains and sub-mains protection
  • Designed for low-voltage power distribution systems
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, the manufacturer's instructions and applicable switchboard requirements. Verify fault levels, discrimination, cable ratings and terminal compatibility before installation.
Applications
  • Switchboard mains protection
  • Sub-main and feeder protection
  • Commercial and industrial power distribution
  • Three-phase low-voltage distribution boards
  • Protection of cables and downstream electrical equipment from overload and short circuit
Standards & Compliance
  • Applicable product standard: AS/NZS IEC 60947.2 for low-voltage circuit-breakers
  • Installation should comply with AS/NZS 3000 Wiring Rules
Environmental Benefits
  • Helps prevent premature damage to cables and downstream equipment, reducing replacement waste
  • Long mechanical and electrical service life can reduce product replacement frequency
  • Supports maintainable and energy-efficient low-voltage distribution system design
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus purchased through authorised sales channels, subject to contract terms and warranty conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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