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MCCB 3P 250A 36kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268935
$1,786.60 List price: $2,382.20
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Chint NM8N 250A 3P MCCB features 36kA breaking capacity, thermal-magnetic trip unit and a 400A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Thermal-Magnetic Circuit Breaker, NM8N-400C TM 250 3P

Technical Specifications
  • Rated Current: 250 A
  • Frame Size: 400 A
  • Number of Poles: 3P
  • Trip Unit: Thermal-magnetic, TM
  • Breaking Capacity: 36 kA at 380/400/415 V AC
  • Rated Operational Voltage: 380/400/415, 440, 500 and 660/690 V AC
  • Rated Insulation Voltage: 1,000 V
  • Rated Impulse Withstand Voltage: 8 kV
  • Utilisation Category: A
  • Connection: Fixed, front connection
  • Mechanical Durability: 15,000 operations
  • Electrical Durability: 1,500 operations at rated voltage
  • Dimensions (H x L x W): 255mm x 113mm x 140mm
  • Weight: 5 kg
Key Features
  • Thermal-magnetic overload and short-circuit protection
  • 400 A frame with a 250 A rated current
  • Three-pole configuration for three-phase distribution systems
  • 36 kA short-circuit breaking capacity at typical low-voltage system voltages
  • Suitable for switchboard mains, sub-mains and industrial distribution protection
  • Fixed-mount MCCB design with front connection
  • Compatible with NM8N accessory components, subject to configuration
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, applicable Australian wiring rules and local electrical regulations. Confirm system fault level, discrimination, cable ratings and RCM requirements before installation.
Applications
  • Switchboard mains protection
  • Sub-main protection
  • Industrial and commercial low-voltage distribution boards
  • Three-phase feeder and incomer protection
  • Overload and short-circuit protection for distribution circuits
Standards & Compliance
  • AS/NZS IEC 60947.2: applicable standard for low-voltage circuit-breakers; verify product certification and RCM requirements before installation
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated material waste
  • Metallic and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
  • Passive protective operation does not require continuous energy consumption during normal service
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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