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MCCB 3P 350A 150kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 269223
$3,374.80 List price: $4,499.70
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Chint NM8N 350A 3P MCCB features 150kA breaking capacity, thermal-magnetic trip unit and a 400A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N thermal-magnetic moulded case circuit breaker, 350A 3P MCCB, 400A frame circuit breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 400A
  • Rated Current: 350A
  • Number of Poles: 3P
  • Trip Unit: Adjustable thermal-magnetic release
  • Ultimate Breaking Capacity: 150kA at 380/400/415V AC
  • Service Breaking Capacity: 150kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1,000V AC
  • Rated Frequency: 50/60Hz
  • Thermal Overload Adjustment: 0.7–1.0 x In
  • Utilisation Category: Category A
  • Ingress Protection: IP40 with terminal covers
  • Installation: Panel-mounted, vertical or horizontal orientation
  • Electrical Endurance: Up to 4,000 operating cycles
  • Mechanical Endurance: Up to 15,000 operating cycles
  • Applicable Product Standard: IEC 60947-2
  • Dimensions (H x L x W): 255mm x 213mm x 140mm
  • Weight: 5.64 kg
Key Features
  • High 150kA short-circuit breaking capacity
  • 400A frame with a 350A rated current
  • Thermal-magnetic protection against overload and short circuit
  • Adjustable thermal and magnetic trip settings
  • Three-pole configuration for three-phase distribution systems
  • Suitable for switchboard mains, sub-mains and industrial distribution boards
  • Supports optional accessories including auxiliary contacts, shunt release, undervoltage release and motor operator
  • Top or bottom line connection options
  • Can be installed vertically or horizontally
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, AS/NZS 3000 and applicable switchboard requirements. Confirm prospective fault current, protection coordination, conductor sizing, terminal torque and local electrical approval requirements before energisation.
Applications
  • Main circuit protection in commercial and industrial switchboards
  • Sub-main protection in large electrical distribution systems
  • Industrial plant power distribution
  • Commercial building distribution boards
  • Data centre and infrastructure power systems
  • Motor control and high-current feeder protection where the selected trip characteristics are suitable
Standards & Compliance
  • Applicable Australian adoption: AS/NZS IEC 60947.2 for low-voltage circuit-breakers
  • Installation should comply with AS/NZS 3000 Wiring Rules and relevant switchboard requirements
  • Confirm product marking, RCM status and local approval requirements before installation
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Metal and thermoplastic components may be recyclable through suitable electrical equipment recycling programmes
  • Thermal-magnetic operation requires no electronic control power for basic overcurrent protection
  • RoHS documentation is available for the NM8N product family
Warranty Information

CHINT's general warranty policy covers other low-voltage apparatus sold through authorised channels for 27 months from the date of manufacture, subject to the applicable sales contract and warranty exclusions. Australian statutory consumer rights may also apply.

Available Now

Available through authorised CHINT distributors in Australia.

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