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MCCB 3P 250A 70kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268959
$2,845.40 List price: $3,793.90
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Chint NM8N 250A 3P MCCB features 70kA breaking capacity, thermal-magnetic trip unit and a 400A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N 400 Frame MCCB, 250A Three-Pole Moulded Case Circuit Breaker, NM8N-400Q TM 250 3P

Technical Specifications
  • Product Type: Moulded Case Circuit Breaker (MCCB)
  • Series: NM8N
  • Frame Size: 400A
  • Rated Current: 250A
  • Number of Poles: 3P
  • Trip Unit: Thermal-magnetic (TM)
  • Ultimate Breaking Capacity (Icu): 70kA at 380/400/415/440V AC
  • Service Breaking Capacity (Ics): 70kA at 380/400/415/440V AC
  • Rated Operational Voltage: 380/400/415/440V AC, 50/60Hz
  • Connection Type: Fixed installation
  • Insulation Voltage: Up to 1,000V AC
  • Dimensions (H x L x W): 185mm x 113mm x 140mm
  • Weight: 5.735 kg
Key Features
  • 70kA short-circuit breaking capacity at common low-voltage AC system voltages
  • Thermal-magnetic trip unit for overload and short-circuit protection
  • 250A rated current in a 400A frame size
  • Three-pole configuration for three-phase distribution systems
  • Suitable for switchboard mains and sub-mains protection
  • Compatible with NM8N series accessories and connection components
Professional Installation Requirements
  • Installation, selection of protective settings and commissioning must be carried out by a licensed electrician in accordance with AS/NZS 3000, applicable switchboard requirements and the manufacturer's instructions.
Applications
  • Main incoming protection in commercial and industrial switchboards
  • Sub-main and feeder protection
  • Three-phase power distribution systems
  • Industrial plant and machinery supply protection
  • Overload and short-circuit protection in low-voltage installations
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
Environmental Benefits
  • Long service life can reduce replacement frequency and associated product waste
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
  • Effective fault and overload protection can help prevent damage to downstream electrical equipment
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised sales channels, subject to the applicable contract terms.

Available Now

Available through authorised CHINT distributors in Australia.

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