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MCCB 3P 100A 70kA Magnetic Only 125A Frame NM8N Chint

BRAND: CABAC
SKU: 271859
$1,111.70 List price: $1,482.30
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Chint NM8N 100A 3P MCCB features 70kA breaking capacity, magnetic-only trip unit for motor protection and a 125A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-125Q M 100A 3-pole MCCB, magnetic motor protection circuit breaker, moulded case circuit breaker

Technical Specifications
  • Series and Frame: NM8N-125, 125A frame
  • Rated Current: 100A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only, M type
  • Rated Ultimate Breaking Capacity Icu: 70kA at 380/400/415/440V AC
  • Rated Service Breaking Capacity Ics: 70kA at 380/400/415/440V AC
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage Ui: 1000V
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Utilisation Category: A
  • Pollution Degree: 3
  • Ingress Protection: IP40
  • Operating Temperature: -40°C to +70°C
  • Mechanical Endurance: 15,000 operating cycles
  • Electrical Endurance: 8,000 operating cycles
  • Mounting: Fixed installation with front or rear connection; DIN rail mounting supported
  • Dimensions (H x L x W): 140mm x 78.5mm x 90mm
  • Weight: 1.24 kg
Key Features
  • 70kA short-circuit breaking capacity at typical 400/415V AC system voltages
  • Magnetic-only trip unit for short-circuit protection in motor applications
  • 125A frame with a 100A rated current
  • Three-pole construction for three-phase circuits
  • Suitable for switchboard mains and industrial power distribution
  • Magnetic-only protection should be coordinated with a separate overload relay for complete motor protection
  • Supports top or bottom line connection
  • Designed for AC systems up to 690V
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000 and the manufacturer's instructions. Confirm fault levels, cable ratings, motor starting current, overload coordination and required accessories before energising.
Applications
  • Motor short-circuit protection when used with a separate overload relay
  • Three-phase switchboard mains protection
  • Industrial power distribution
  • Commercial building electrical distribution
  • Protection of motor feeders and high-current outgoing circuits
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • AS/NZS 3000:2018 for selection, installation and verification within Australian electrical installations
Environmental Benefits
  • Long service life can reduce replacement frequency and associated material waste
  • Metal and thermoplastic components can be separated and directed to appropriate recycling streams at end of life
  • Supports equipment protection and reliable power distribution, helping reduce damage-related waste
Warranty Information

CHINT warranty policy states that other low-voltage apparatus is covered against defects in materials and workmanship for 27 months from the date of manufacture when purchased through authorised sales channels. Contractual terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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