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MCCB 3P 225A 50kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271175
$727.90 List price: $970.50
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Chint NM8N 225A 3P MCCB features 50kA breaking capacity, thermal-magnetic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N 225A MCCB, 225A 3P Moulded Case Circuit Breaker, 250AF MCCB, Thermal-Magnetic Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Rated Current: 225A
  • Frame Size: 250A frame, 250AF
  • Number of Poles: 3P
  • Trip Unit: Thermal-magnetic
  • Ultimate Breaking Capacity: 50kA
  • Service Breaking Capacity: 50kA, 100% of Icu
  • Rated Operational Voltage: 380/400/415V AC, with higher-voltage ratings available within the NM8N range
  • Rated Frequency: 50/60Hz
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 8kV
  • Operating Temperature: -40°C to +70°C
  • Installation: Fixed surface mounting
  • Connection: Screw terminals
  • Protection Degree: IP40
  • Mechanical Endurance: Up to 15,000 operations
  • Electrical Endurance: Up to 1,500 operations
  • Dimensions (H x L x W): 157mm x 105mm x 88.7mm
  • Weight: 1.85 kg
Key Features
  • Three-pole protection for low-voltage distribution systems
  • Thermal-magnetic trip unit provides overload and short-circuit protection
  • 50kA high short-circuit breaking capacity
  • 250A frame accommodates the 225A rated current
  • Suitable for switchboard mains, sub-mains and industrial distribution boards
  • Can be installed with line or load terminals at the top or bottom
  • Compatible with selected CHINT auxiliary, alarm, shunt-trip and undervoltage accessories
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with applicable electrical installation requirements, manufacturer instructions and the approved switchboard design. Correct fault level, discrimination, cable rating and protective settings must be verified before energisation.
Applications
  • Switchboard mains protection
  • Sub-main protection in commercial and industrial buildings
  • Low-voltage power distribution boards
  • Industrial control panels and machinery supply protection
  • Protection of feeders against overload and short-circuit faults
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand standard for low-voltage circuit-breakers; verify the specific product certification and RCM requirements before installation in Australia.
  • IEC 60947-1 and IEC 60947-2 product standards are specified for the CHINT NM8N series.
Environmental Benefits
  • Copper, aluminium and steel components can be recovered through appropriate electrical equipment recycling channels at end of service life
  • Thermal-magnetic protection helps prevent damage to downstream equipment, extending system service life and reducing replacement waste
  • Designed for long mechanical and electrical endurance, reducing the frequency of circuit-breaker replacement
Warranty Information

CHINT low-voltage apparatus is generally covered against defects in materials and workmanship for 27 months from the date of manufacture when supplied through authorised sales channels, subject to the applicable contract, installation and operating conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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