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MCCB 3P 350A 100kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268973
$3,176.30 List price: $4,235.00
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Chint NM8N 350A 3P MCCB features 100kA breaking capacity, thermal-magnetic trip unit and a 400A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, 350A MCCB, 3P Thermal-Magnetic Circuit Breaker, NM8N-400H TM MCCB

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 400A
  • Rated Current: 350A
  • Number of Poles: 3P
  • Trip Unit: Thermal-magnetic, TM
  • Rated Ultimate Breaking Capacity: 100kA at 380–440V AC
  • Rated Service Breaking Capacity: 100kA at 380–440V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 12kV
  • Overload Current Adjustment: 245–350A
  • Instantaneous Short-Circuit Adjustment: 1750–3500A
  • Utilisation Category: A
  • Installation: Fixed mounting with front or rear connection options
  • Electrical Life: Up to 10,000 operations at 415V AC
  • Dimensions (H x L x W): 255mm x 113mm x 140mm
  • Weight: 5.2 kg
Key Features
  • High 100kA short-circuit breaking capacity at common low-voltage distribution voltages
  • Adjustable thermal overload protection from 245A to 350A
  • Adjustable magnetic instantaneous protection from 1750A to 3500A
  • Three-pole configuration for three-phase distribution systems
  • 400A frame accommodates multiple current ratings within the NM8N range
  • Suitable for isolation and circuit protection
  • Compatible with optional CHINT auxiliary, shunt-release, undervoltage and operating accessories
  • Designed for switchboards, power distribution equipment and industrial electrical installations
Professional Installation Requirements
  • Installation, adjustment and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, the switchboard manufacturer's requirements and applicable local electrical regulations. Verify fault levels, discrimination, cable capacity and RCM requirements before installation.
Applications
  • Main incoming protection for commercial and industrial switchboards
  • Sub-main protection in low-voltage distribution boards
  • Protection of feeders, busbar sections and large electrical loads
  • Power distribution in industrial buildings, commercial premises and infrastructure facilities
  • Motor and equipment feeder protection where the thermal-magnetic characteristics are suitable
Standards & Compliance
  • Manufacturer specifies IEC/EN 60947-2 for the NM8N MCCB range
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand product standard for low-voltage circuit-breakers; confirm the specific unit's local certification and RCM status before supply
  • Installation and incorporation into switchboards should comply with AS/NZS 3000 and, where applicable, AS/NZS 61439
Environmental Benefits
  • Metal and thermoplastic components can be separated and directed to appropriate recycling streams at end of service life
  • Long mechanical and electrical service life can reduce replacement frequency and associated material waste
  • Effective overload and short-circuit protection helps limit damage to connected equipment and reduce premature system replacement
  • RoHS declarations are available for the NM8N product range, subject to verification for the supplied variant
Warranty Information

CHINT's general warranty policy covers other low-voltage apparatus for 27 months from the date of manufacture when purchased through authorised sales channels, subject to the applicable terms and customer contract.

Available Now

Available through authorised CHINT distributors in Australia.

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