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

BRAND: CABAC
SKU: 271431
$2,580.70 List price: $3,440.90
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Chint NM8N 225A 3P MCCB features 50kA breaking capacity, magnetic-only trip unit for motor protection and a 250A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Motor Protection Circuit Breaker, Magnetic Trip MCCB

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 250A
  • Rated Current: 225A at 40°C
  • Number of Poles: 3P
  • Release Type: Magnetic-only trip unit
  • Breaking Capacity: 50kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 8kV
  • Utilisation Category: A
  • Installation: Fixed mounting with top or bottom line entry; vertical or horizontal mounting
  • Mechanical Life: 25,000 operating cycles
  • Electrical Life: 10,000 operating cycles at 415V AC and rated current
  • Suitable Applications: Motor starting and short-circuit protection
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • 225A rated current in a compact 250A frame
  • Magnetic-only trip unit suited to motor circuit short-circuit protection
  • 50kA short-circuit breaking capacity at 380/400/415V AC
  • Three-pole configuration for three-phase systems
  • Suitable for low-voltage distribution, switchboard mains and motor protection
  • Supports isolation and flexible mounting orientation
  • Compatible with selected CHINT NM8N accessories
Professional Installation Requirements
  • Installation, selection and commissioning should be performed by a licensed electrical contractor in accordance with applicable wiring rules, fault-level calculations and manufacturer instructions. The magnetic-only trip setting must be coordinated with the motor starting current, cabling and upstream protection.
Applications
  • Three-phase motor protection circuits
  • Switchboard mains and sub-main protection
  • Industrial power distribution boards
  • Commercial building electrical distribution
  • Manufacturing plant and machinery control panels
  • Low-voltage systems requiring high short-circuit withstand capability
Standards & Compliance
  • Applicable product standard: AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • Installation should comply with AS/NZS 3000 and applicable state or territory electrical requirements
Environmental Benefits
  • RoHS documentation is available for the NM8N series, supporting restricted-substance compliance
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Metal components such as copper and steel can be recovered through established electrical equipment recycling streams
Warranty Information

CHINT's general warranty policy for other low-voltage apparatus provides 27 months against defects in materials and workmanship from the date of manufacture, subject to authorised sales channels, contract terms and exclusions for improper installation or misuse.

Available Now

Available through authorised CHINT distributors in Australia.

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