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MCCB 3P 400A 150kA Magnetic Only 400A Frame NM8N Chint

BRAND: CABAC
SKU: 269517
$4,003.40 List price: $5,337.90
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30 Days Return Electricians Unlock Trade Access
Chint NM8N 400A 3P MCCB features 150kA breaking capacity, magnetic-only trip unit for motor protection and a 400A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-400R M 400A 3P MCCB, Magnetic Motor Protection Circuit Breaker, 400A Moulded Case Circuit Breaker

Technical Specifications
  • Frame Size: 400A
  • Rated Current: 400A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only electromagnetic release
  • Rated Ultimate Breaking Capacity Icu: 150kA at 380/400/415V AC; 100kA at 440V AC
  • Rated Service Breaking Capacity Ics: 150kA at 380/400/415V AC; 100kA at 440V AC
  • Magnetic Trip Setting: 9–14 x In for motor protection
  • Rated Operational Voltage: 380/400/415/440V AC
  • Rated Insulation Voltage Ui: 1,000V
  • Rated Impulse Withstand Voltage Uimp: 12kV
  • Mechanical Endurance: 15,000 operations
  • Electrical Endurance: 1,500 operations
  • Connection Type: Fixed-mounted MCCB
  • Dimensions (H x L x W): 250mm x 135mm x 140mm
  • Weight: 5 kg
Key Features
  • 150kA high short-circuit breaking capacity at 380–415V AC
  • Magnetic-only trip unit designed for motor short-circuit protection
  • 400A frame with 400A rated current
  • Three-pole configuration for three-phase systems
  • Adjustable instantaneous magnetic trip setting from 9–14 times rated current
  • Suitable for use with a contactor and separate thermal overload relay in motor protection arrangements
  • Moulded case construction for low-voltage power distribution and industrial switchboards
Professional Installation Requirements
  • Installation, selection, fault-level verification and commissioning must be performed by a licensed electrician in accordance with applicable Australian wiring rules, manufacturer instructions and switchboard requirements. Because this is magnetic-only protection, a separate overload protection device is required where motor overload protection is needed.
Applications
  • Three-phase motor short-circuit protection
  • Industrial motor control centres and switchboards
  • High-fault-level switchboard feeders
  • Power distribution systems requiring magnetic-only MCCB protection
  • Motor protection systems using a contactor and separate thermal overload relay
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand product standard for low-voltage circuit-breakers; verify certification and Regulatory Compliance Marking for the supplied unit
  • Installation should comply with AS/NZS 3000 wiring requirements
Environmental Benefits
  • Long mechanical and electrical endurance can reduce replacement frequency and associated waste
  • Copper and other metallic components can be recovered through established electrical equipment recycling streams
  • Reusable accessory and switchboard-compatible construction can support equipment refurbishment rather than complete replacement
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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