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MCCB 3P 250A 150kA Magnetic Only 400A Frame NM8N Chint

BRAND: CABAC
SKU: 269514
$4,003.40 List price: $5,337.90
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Chint NM8N 250A 3P MCCB features 150kA breaking capacity, magnetic-only trip unit for motor protection and a 400A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-400R M 250A MCCB, 3-Pole Motor Protection Circuit Breaker, Magnetic-Only MCCB, 400A Frame MCCB

Technical Specifications
  • Series: NM8N
  • Frame Size: 400A frame
  • Rated Current: 250A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only electromagnetic release, M type
  • Ultimate Short-Circuit Breaking Capacity: 150kA at 380–415V AC
  • Service Short-Circuit Breaking Capacity: 150kA at 380–415V AC
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 8kV
  • Utilisation Category: A
  • Electrical Life: Up to 4000 operating cycles
  • Mechanical Life: Up to 15000 operating cycles
  • Protection Rating: IP40
  • Reference Product Standard: IEC/EN 60947-2
  • Dimensions (H x L x W): 255mm x 213mm x 140mm
  • Weight: 5.25 kg
Key Features
  • High 150kA short-circuit breaking capacity at 380–415V AC
  • Magnetic-only trip unit for short-circuit protection and motor circuit applications
  • 400A frame with a 250A rated current
  • Three-pole configuration for three-phase systems
  • Suitable for isolation when installed and operated in accordance with the manufacturer’s instructions
  • Designed for industrial distribution boards, motor feeders and high fault-level switchboards
  • External overload protection is required because the magnetic-only trip does not provide thermal overload protection
  • Fixed front-connection format
Professional Installation Requirements
  • Installation, selection and commissioning must be carried out by a licensed electrician in accordance with AS/NZS 3000, the switchboard manufacturer’s requirements and the CHINT installation instructions. Motor circuits require coordinated external overload protection because this MCCB has a magnetic-only trip unit.
Applications
  • Industrial switchboard mains and sub-main protection
  • Three-phase motor feeder short-circuit protection
  • Motor control centres and industrial distribution boards
  • High fault-level commercial and industrial electrical installations
  • Automatic transfer and main incoming switchboard assemblies
Standards & Compliance
  • Applicable product standard: AS/NZS 60947.2 for low-voltage circuit breakers; verify the exact certification and RCM status for the supplied unit before Australian installation
  • Installation and selection should comply with AS/NZS 3000 Wiring Rules
  • Switchboard integration may also require compliance with the applicable AS/NZS 61439 series requirements
Environmental Benefits
  • Durable moulded-case construction supports a long service life and reduces replacement waste
  • Electrical and metallic components can be separated for recycling at end of life where local recycling facilities accept them
  • RoHS-related product declarations are available for the NM8N series, supporting restriction of hazardous substances
Warranty Information

CHINT’s general warranty policy covers other low-voltage apparatus for 27 months from the date of manufacture when purchased through authorised sales channels. Contract terms may vary and exclusions apply for improper installation, misuse or unauthorised modification.

Available Now

Available through authorised CHINT distributors in Australia.

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