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MCCB 4P 63A 70kA Standard Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271397
$2,183.70 List price: $2,911.60
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Chint NM8N 63A 4P MCCB features 70kA breaking capacity, standard electronic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N 4P MCCB, 63A Moulded Case Circuit Breaker, 70kA Electronic MCCB, Protected Neutral MCCB

Technical Specifications
  • Product Series: NM8N
  • Frame Size: 250A
  • Rated Current: 63A
  • Poles: 4P
  • Trip Unit: Standard electronic EN type
  • Neutral Protection: Protected neutral pole
  • Ultimate Breaking Capacity: 70kA at 380/400/415V AC
  • Service Breaking Capacity: 70kA at 380/400/415V AC
  • Rated Insulation Voltage Ui: 1000V AC
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Rated Operational Voltage Ue: 380/400/415V, 440V, 500V and 660/690V AC, subject to breaking-capacity derating
  • Rated Short-Time Withstand Current Icw: 1kA for 1 second at 63A
  • Utilisation Category: A
  • Connection: Fixed front or rear connection
  • Ambient Operating Temperature: -25°C to +70°C for standard electronic release
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 operating cycles at 415V AC and rated current
  • Applicable Product Standard: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.65 kg
Key Features
  • Four-pole MCCB for three-phase systems with neutral protection
  • 70kA short-circuit breaking capacity at common low-voltage operating voltages
  • Standard electronic trip unit for adjustable overload and short-circuit protection
  • 250A frame with a 63A rated current
  • Suitable for switchboard mains and distribution protection
  • Suitable for isolation when installed and operated in accordance with the manufacturer’s instructions
  • Zero-arc-distance design
  • Fixed mounting with front or rear connection options
Professional Installation Requirements
  • Installation, testing and commissioning should be performed by a licensed electrician in accordance with AS/NZS 3000, applicable switchboard requirements and the manufacturer’s instructions. Confirm fault level, voltage, discrimination, cable capacity and required local approvals before installation.
Applications
  • Main incoming protection in low-voltage switchboards
  • Commercial and industrial distribution boards
  • Three-phase mains protection with protected neutral
  • High fault-level power distribution systems
  • Electrical equipment and submain protection
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 is the applicable Australian and New Zealand standard for low-voltage circuit-breakers; verify product marking and local approval requirements before installation
  • AS/NZS 3000 applies to electrical installation, wiring and switchboard integration
Environmental Benefits
  • Electronic trip protection can help reduce unnecessary equipment replacement by providing controlled overload and short-circuit protection
  • Durable moulded-case construction and high operating life can reduce replacement frequency and associated material waste
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams at end of life
Warranty Information

CHINT’s general warranty policy for other low-voltage apparatus provides coverage against defects in materials and workmanship for 27 months from the date of manufacture when supplied through authorised sales channels; contract terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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