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MCCB 4P 315A 70kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268968
$3,163.00 List price: $4,217.40
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Chint NM8N 315A 4P MCCB features 70kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 400A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Thermal-Magnetic Circuit Breaker, Main Switchboard Circuit Breaker

Technical Specifications
  • Product Series: NM8N
  • Breaker Type: Moulded case circuit breaker
  • Rated Current: 315 A
  • Frame Size: 400 A
  • Number of Poles: 4P
  • Trip Unit: Thermal-magnetic
  • Neutral Protection: Protected neutral
  • Rated Ultimate Breaking Capacity Icu: 70 kA at 380/400/415 V AC
  • Rated Service Breaking Capacity Ics: 70 kA at 380/400/415 V AC
  • Rated Operational Voltage Ue: 380/400/415 V AC, 50/60 Hz
  • Rated Insulation Voltage Ui: 1000 V
  • Rated Impulse Withstand Voltage Uimp: 8 kV
  • Utilisation Category: Category A
  • Standard: IEC/EN 60947-2
  • Isolation Function: Suitable for isolation
  • Connection: Fixed type
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.5 kg
Key Features
  • High 70kA short-circuit breaking capacity at 380/400/415V AC
  • Four-pole configuration with protected neutral
  • Thermal-magnetic overload and short-circuit protection
  • 400A frame with 315A rated current
  • Suitable for switchboard mains and large distribution circuits
  • Designed for low-voltage power distribution applications
  • Zero arcing distance design supports compact switchboard installation
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, applicable switchboard requirements and the manufacturer's installation instructions. Confirm prospective fault current, selectivity, cable ratings and required Australian approvals before installation.
Applications
  • Main incomer protection in commercial switchboards
  • Industrial power distribution boards
  • Building services and plant-room electrical systems
  • Large HVAC and mechanical services installations
  • Overcurrent and short-circuit protection for low-voltage feeders
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand product standard for low-voltage circuit-breakers; verify certification for the specific NM8N variant
  • AS/NZS 3000 applies to selection, installation and verification within Australian electrical installations
  • Confirm applicable RCM and local electrical safety requirements before supply or installation
Environmental Benefits
  • RoHS documentation is available for the NM8N product series, supporting restriction of hazardous substances
  • Long service life and high mechanical endurance can reduce replacement frequency and material waste
  • Metal and engineering-plastic components can be separated for appropriate end-of-life recycling
  • Provides reliable system protection that can help prevent damage and premature replacement of downstream electrical equipment
Warranty Information

CHINT warranty policy specifies 27 months from the date of manufacture for other low-voltage apparatus, including MCCBs, when purchased through authorised sales channels. Contract terms and local warranty conditions may apply.

Available Now

Available through authorised CHINT distributors in Australia.

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