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

BRAND: CABAC
SKU: 268974
$3,176.30 List price: $4,235.00
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Chint NM8N 400A 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: 400A 3-Pole Moulded Case Circuit Breaker, Thermal-Magnetic Circuit Breaker, Switchboard Main Circuit Breaker

Technical Specifications
  • Frame Size: 400A
  • Rated Current: 400A at 40°C
  • Number of Poles: 3P
  • Trip Unit: Thermal-magnetic, TM
  • Ultimate Breaking Capacity Icu: 100kA at 380–440VAC
  • Service Breaking Capacity Ics: 100kA at 380–440VAC
  • Rated Operational Voltage: Up to 690VAC
  • Rated Insulation Voltage: 1000V
  • Thermal Adjustment: 0.7–1.0 × In
  • Magnetic Adjustment: 5–10 × In for power distribution
  • Mounting: Fixed installation with front or rear connection
  • Standard Product Range: IEC 60947-1 and IEC 60947-2
  • Dimensions (H x L x W): 255mm x 113mm x 140mm
  • Weight: 5 kg
Key Features
  • 100kA short-circuit breaking capacity for high-fault-level installations
  • Thermal-magnetic overload and short-circuit protection
  • 400A frame with 400A rated current
  • Three-pole configuration for three-phase distribution systems
  • Suitable for switchboard mains, sub-mains and industrial power distribution
  • Adjustable thermal and magnetic trip settings
  • Supports vertical or horizontal installation
  • Top or bottom line entry permitted
  • Designed for circuits operating up to 690VAC
Professional Installation Requirements
  • Installation, selection and commissioning must be completed by a licensed electrical professional in accordance with the manufacturer's instructions, applicable wiring rules and the site's fault-level and discrimination requirements. Confirm local approval and RCM requirements before installation.
Applications
  • Main incomer protection in commercial and industrial switchboards
  • Sub-main protection in low-voltage distribution boards
  • Three-phase power distribution systems
  • Industrial plant and machinery supply protection
  • High prospective fault-current installations
  • Building services and data-centre electrical distribution
Standards & Compliance
  • Applicable Australian adoption: AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • Manufacturer product documentation references IEC 60947-1 and IEC 60947-2; verify RCM and project-specific Australian approval requirements before use
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Circuit protection helps limit damage to downstream electrical equipment during overloads and short circuits
  • Metal and polymer components may be recoverable through appropriate electrical equipment recycling streams
Warranty Information

CHINT's general policy for other low-voltage apparatus provides a 27-month warranty from the date of manufacture against defects in materials and workmanship when purchased through authorised sales channels; contract terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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