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MCCB 3P 250A 150kA Magnetic Only 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271450
$3,110.10 List price: $4,146.80
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30 Days Return Electricians Unlock Trade Access
Chint NM8N 250A 3P MCCB features 150kA 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-Only MCCB, NM8N-250R 3P MCCB

Technical Specifications
  • Rated Current: 250 A
  • Frame Size: 250 A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only release for motor protection
  • Ultimate Breaking Capacity Icu: 150 kA at 380/400/415 V AC
  • Service Breaking Capacity Ics: 150 kA at 380/400/415 V AC
  • Rated Operational Voltage: 380/400/415 V AC
  • Maximum Operational Voltage: 690 V AC
  • Rated Insulation Voltage Ui: 1000 V AC
  • Rated Impulse Withstand Voltage Uimp: 8 kV
  • Frequency: 50/60 Hz
  • Utilisation Category: A
  • Mounting: Fixed installation with front connection
  • Terminal Connection: M8 terminals
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.75 kg
Key Features
  • Magnetic-only protection suited to motor starting applications
  • High 150 kA short-circuit breaking capacity at 380/400/415 V AC
  • Three-pole construction for three-phase distribution systems
  • 250 A frame size with a compact moulded-case design
  • Suitable for switchboards, power distribution and motor control centres
  • Accessory-compatible platform with options including auxiliary contacts, shunt trips and undervoltage releases
Professional Installation Requirements
  • Installation, selection and commissioning should be performed by a licensed electrician in accordance with AS/NZS 3000, manufacturer instructions and applicable switchboard requirements. Confirm fault levels, cable protection, motor starting current and coordination before installation.
Applications
  • Three-phase switchboard mains protection
  • Motor control centres and motor feeder protection
  • Industrial power distribution boards
  • Commercial and industrial switchboards
  • High prospective fault-current installations
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • Installation should comply with AS/NZS 3000:2018 and applicable local electrical requirements
Environmental Benefits
  • Moulded-case construction supports a long service life and reduces replacement waste
  • Copper and metal components can be recovered through appropriate electrical equipment recycling streams
  • Magnetic-only motor protection can support reliable motor operation and reduce damage-related equipment replacement
Warranty Information

CHINT low-voltage apparatus supplied through authorised sales channels is covered for manufacturing defects for 27 months from the date of manufacture, unless different terms apply under the supply contract.

Available Now

Available through authorised CHINT distributors in Australia.

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