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MCCB 4P 63A 150kA Standard Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271417
$2,977.70 List price: $3,970.30
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Chint NM8N 63A 4P MCCB features 150kA breaking capacity, standard electronic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N 250R Electronic MCCB, 4-Pole Moulded Case Circuit Breaker, Main Switchboard Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Number of Poles: 4P with protected neutral
  • Rated Current: 63A
  • Frame Size: 250A
  • Breaking Capacity: 150kA at 380/400/415V AC; 100kA at 440V AC
  • Trip Unit: Standard electronic type EM for power distribution
  • Protection Functions: Long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection
  • Electronic Current Setting: Adjustable from 0.4 to 1.0 times rated current
  • Rated Insulation Voltage Ui: 1000V AC
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Utilisation Category: A
  • Standard: IEC/EN 60947-2
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 cycles at 415V AC and rated current
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.65 kg
Key Features
  • 150kA ultimate short-circuit breaking capacity at 380/400/415V AC
  • 250A frame with a 63A adjustable electronic trip unit
  • Four-pole construction with adjustable neutral protection
  • Real-time current and protection parameter display
  • Four-stage protection for overload, short circuit and earth-fault conditions
  • Suitable for vertical or horizontal installation
  • Can be used for isolation when installed in accordance with the applicable requirements
Professional Installation Requirements
  • Installation, configuration and testing should be performed by a licensed electrician in accordance with the manufacturer's instructions, AS/NZS 3000 and the applicable switchgear requirements. Verify fault levels, discrimination, conductor sizing, terminal torque and electronic protection settings before energising.
Applications
  • Main switchboard protection
  • Commercial and industrial power distribution
  • Low-voltage mains protection
  • Protection of switchboards, electrical equipment and distribution circuits
  • High fault-level installations requiring high breaking capacity
Standards & Compliance
  • Applicable standard reference: AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • Installation should comply with AS/NZS 3000 Wiring Rules and relevant local electrical requirements
Environmental Benefits
  • Durable moulded-case construction and long mechanical service life can reduce replacement waste
  • Electronic protection settings allow closer matching to the protected circuit, helping avoid unnecessary trips and equipment replacement
  • Metallic and thermoplastic components can be separated for recycling at end of service life
  • Supports efficient and reliable operation of low-voltage electrical distribution systems
Warranty Information

CHINT low-voltage apparatus is generally warranted against defects in materials and workmanship for 27 months from the date of manufacture when sold through authorised channels. Contractual terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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