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MCCB 3P 40A 70kA Magnetic Only 125A Frame NM8N Chint

BRAND: CABAC
SKU: 271855
$1,111.70 List price: $1,482.30
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Chint NM8N 40A 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 40A 3P MCCB, Magnetic MCCB, Moulded Case Circuit Breaker, Motor Protection MCCB

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 125A
  • Rated Current: 40A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only release
  • Rated Service Voltage: 380/400/415V AC, 50/60Hz
  • Rated Insulation Voltage Ui: 1000V
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Rated Ultimate Short-Circuit Breaking Capacity Icu: 70kA at 380/400/415V AC
  • Utilisation Category: A
  • Connection Type: Fixed front or rear connection options
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 operating cycles at 415V AC and rated current
  • Operating Temperature: -40°C to +70°C
  • Dimensions (H x L x W): 140mm x 78.5mm x 90mm
  • Weight: 1.19 kg
Key Features
  • High 70kA short-circuit breaking capacity at 380/400/415V AC
  • Magnetic-only trip unit for instantaneous short-circuit protection
  • 125A frame accommodates a 40A rated current configuration
  • Three-pole construction for three-phase circuits
  • Suitable for motor circuits when coordinated with separate overload protection
  • Suitable for fixed installation and DIN-rail mounting arrangements
  • Zero arcing distance design
  • Isolation function supported by the NM8N series
Professional Installation Requirements
  • Installation, selection and commissioning must be carried out by a licensed electrician in accordance with applicable Australian electrical requirements. Magnetic-only protection does not provide motor overload protection; a suitable overload relay or motor protection device must be correctly coordinated with the MCCB.
Applications
  • Three-phase motor circuit short-circuit protection
  • Industrial switchboards and distribution boards
  • Commercial and industrial power distribution
  • High-fault-level mains and submain protection where the protection scheme is correctly coordinated
  • Electrical equipment and machinery protection
Standards & Compliance
  • Designed to IEC/EN 60947-2 for low-voltage circuit-breakers
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand product standard for MCCBs; verify the specific product certification and RCM requirements before installation
Environmental Benefits
  • Durable moulded-case construction can extend service life and reduce replacement waste
  • Copper, aluminium and steel components can be recovered through appropriate electrical equipment recycling streams
  • CHINT publishes RoHS documentation for the NM8N product family, subject to the exact product variant and supply configuration
Warranty Information

CHINT’s general warranty policy states 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels, subject to applicable contract terms and conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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