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MCCB 3P 225A 70kA Magnetic Only 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271437
$2,779.20 List price: $3,705.60
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Chint NM8N 225A 3P MCCB features 70kA breaking capacity, magnetic-only trip unit for motor protection and a 250A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-250Q M 225A 3P MCCB, Motor Protection MCCB, Magnetic Trip Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Series: NM8N-250Q M
  • Rated Current: 225A
  • Frame Size: 250A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only
  • Rated Short-Circuit Breaking Capacity: 70kA
  • Rated Operational Voltage: 380/400/415V AC, with ratings available up to 690V AC
  • Rated Insulation Voltage Ui: 1000V AC
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Frequency: 50/60Hz
  • Utilisation Category: A
  • Standard: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • 70kA short-circuit breaking capacity
  • Magnetic-only trip unit suited to motor and high-inrush applications
  • 250A frame with a 225A current rating
  • Three-pole configuration for three-phase systems
  • Suitable for switchboard mains and feeder protection
  • Resettable circuit protection reduces the need for fuse replacement
  • Suitable for isolation when installed in accordance with the manufacturer’s requirements
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. Magnetic-only protection does not provide overload protection, so coordinated motor overload protection may be required.
Applications
  • Three-phase switchboard mains protection
  • Motor feeder and motor circuit protection
  • Industrial and commercial distribution boards
  • High-inrush load protection
  • Low-voltage power distribution systems
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 — applicable standard for low-voltage circuit-breakers
  • AS/NZS 3000:2018 — applicable requirements for selection and installation in Australian electrical installations
Environmental Benefits
  • Resettable protection reduces consumable fuse replacement and associated waste
  • Long service life can reduce replacement frequency and equipment waste
  • Metallic and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
  • Supports protection of motors and switchboard equipment, helping reduce premature replacement of larger components
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels; terms may vary according to the sales contract.

Available Now

Available through authorised CHINT distributors in Australia.

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