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MCCB 3P 180A 50kA Magnetic Only 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271429
$2,580.70 List price: $3,440.90
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Chint NM8N 180A 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: CHINT NM8N-250S 180A 3P MCCB, magnetic circuit breaker, motor protection MCCB, moulded case circuit breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 250A
  • Rated Current: 180A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only release for motor protection
  • Rated Ultimate Short-Circuit Breaking Capacity Icu: 50kA at 380/400/415V AC
  • Rated Service Short-Circuit Breaking Capacity Ics: 50kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage Ui: 1000V
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Utilisation Category: A
  • Isolation Suitability: Suitable for isolation
  • Installation: Fixed or DIN rail mounting with front or rear connection
  • Mechanical Endurance: 25,000 operating cycles
  • Electrical Endurance: 10,000 operating cycles at 415V AC and rated current
  • Manufacturer Standard: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • Three-pole configuration for three-phase circuits
  • 50kA high short-circuit breaking capacity at 415V AC
  • Magnetic-only trip unit suited to motor-starting applications
  • 180A rated current in a 250A frame
  • Suitable for switchboard mains and industrial power distribution protection
  • Compact fixed-mount MCCB with front or rear connection options
  • Suitable for AC systems up to 690V
  • Zero arcing distance design
Professional Installation Requirements
  • Installation, selection and adjustment should be performed by a licensed electrical contractor in accordance with AS/NZS 3000, the manufacturer's instructions and the requirements of the switchboard assembly. Confirm prospective fault current, cable ratings, discrimination and motor starting characteristics before commissioning.
Applications
  • Motor circuit short-circuit protection
  • Industrial switchboards
  • Commercial building power distribution
  • Three-phase mains and feeder protection
  • Manufacturing machinery and motor control panels
  • Data centre and infrastructure electrical distribution
Standards & Compliance
  • AS/NZS IEC 60947.2 for low-voltage circuit breakers, subject to verification of the specific Australian-market product documentation
  • AS/NZS 3000 for electrical installation and switchboard wiring requirements
Environmental Benefits
  • Copper and other metallic components can be recovered and recycled at end of service life
  • Long mechanical and electrical endurance can reduce replacement frequency and associated waste
  • RoHS documentation is available for the NM8N product series
  • Supports reliable electrical distribution and motor protection, helping reduce damage-related equipment waste
Warranty Information

CHINT's general policy specifies a 27-month warranty from the date of manufacture for other low-voltage apparatus sold through authorised channels, subject to contract terms, correct installation and operating conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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