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MCCB 3P 250A 36kA Magnetic Only 400A Frame NM8N Chint

BRAND: CABAC
SKU: 269498
$2,448.40 List price: $3,264.50
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Chint NM8N 250A 3P MCCB features 36kA breaking capacity, magnetic-only trip unit for motor protection and a 400A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-400C Magnetic MCCB, 250A Motor Protection MCCB, 3-Pole Moulded Case Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Rated Current: 250A
  • Frame Size: 400A
  • Number of Poles: 3P
  • Breaking Capacity: 36kA at AC 380/400/415V
  • Trip Unit: Magnetic-only release for motor protection
  • Magnetic Trip Adjustment: 7–12 x In
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 12kV
  • Utilisation Category: A
  • Mounting: Fixed installation with front or rear connection
  • Installation Orientation: Vertical or horizontal
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 cycles at AC 415V rated current
  • Operating Temperature: -40°C to +70°C
  • Dimensions (H x L x W): 255mm x 140mm x 113mm
  • Weight: 1.85 kg
Key Features
  • 250A rated current within a 400A frame size
  • 36kA short-circuit breaking capacity at typical 380–415V AC system voltages
  • Magnetic-only trip unit designed for motor protection applications
  • Three-pole configuration for three-phase circuits
  • Suitable for switchboard mains, submains and motor circuit protection
  • Supports front or rear connection arrangements
  • Can be installed vertically or horizontally
  • Suitable for isolation when installed in accordance with the manufacturer's requirements
Professional Installation Requirements
  • Installation, selection of magnetic trip settings and commissioning must be carried out by a licensed electrician in accordance with the manufacturer's instructions, applicable switchboard requirements and AS/NZS 3000. Confirm fault levels, discrimination, cable ratings and local certification requirements before energisation.
Applications
  • Switchboard mains protection
  • Three-phase motor circuit protection
  • Industrial and commercial power distribution
  • Submains and feeder protection
  • Low-voltage AC electrical equipment protection
Standards & Compliance
  • Relevant product standard: AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers; verify product certification, RCM requirements and installation suitability for the intended Australian application.
Environmental Benefits
  • Long mechanical service life can reduce replacement frequency and associated product waste
  • Metal components and electrical conductors may be recoverable through appropriate electrical equipment recycling streams
  • Reliable fault protection can help reduce damage to downstream electrical equipment and extend system service life
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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