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MCCB 3P 400A 50kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268950
$1,786.60 List price: $2,382.20
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Chint NM8N 400A 3P MCCB features 50kA breaking capacity, thermal-magnetic trip unit and a 400A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N 400S MCCB, 400A moulded case circuit breaker, 3-pole thermal-magnetic circuit breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 400A
  • Rated Current: 400A at 40°C
  • Number of Poles: 3P
  • Trip Unit: Adjustable thermal-magnetic release
  • Breaking Capacity: 50kA
  • Service Breaking Capacity: 100% of Icu
  • Rated Operating Voltage: Up to 690VAC
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 12kV
  • Rated Frequency: 50/60Hz
  • Mounting: Surface mounting with screw terminals
  • Degree of Protection: IP40
  • Mechanical Durability: Up to 15,000 operating cycles
  • Electrical Durability: Up to 1,500 operating cycles
  • Dimensions (H x L x W): 255mm x 113mm x 140mm
  • Weight: 5.24 kg
Key Features
  • 400A frame and 400A rated current for high-current distribution circuits
  • Three-pole configuration for three-phase power systems
  • Thermal-magnetic trip unit provides overload and short-circuit protection
  • 50kA ultimate breaking capacity for high fault-current applications
  • Adjustable trip settings support coordination with upstream and downstream protection
  • Suitable for switchboard mains, sub-mains and industrial distribution boards
  • Compatible with optional auxiliary, alarm, shunt-trip and undervoltage accessories
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, applicable wiring rules and the switchboard design. Verify fault levels, discrimination, cable ratings and enclosure clearances before energisation.
Applications
  • Switchboard mains protection
  • Switchboard sub-main protection
  • Commercial and industrial power distribution
  • Three-phase feeder protection
  • Industrial machinery and plant distribution circuits
  • High-current building services and infrastructure
Standards & Compliance
  • Applicable product standard: AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • Installation should comply with AS/NZS 3000 and the requirements of the completed switchboard assembly
Environmental Benefits
  • Long service life can reduce replacement frequency and associated material waste
  • Copper, steel and aluminium components can be recovered through appropriate electrical equipment recycling streams
  • Overload and short-circuit protection helps limit equipment damage and reduce premature replacement of connected assets
  • The NM8N series has published RoHS environmental documentation
Warranty Information

12-month warranty against defects in design, workmanship and materials from the date of delivery, subject to CHINT warranty terms and exclusions for misuse, modification or incorrect installation.

Available Now

Available through authorised CHINT distributors in Australia.

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