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MCCB 4P 180A 36kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271155
$1,058.80 List price: $1,411.70
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Chint NM8N 180A 4P MCCB features 36kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N 250A Frame MCCB, 4P 180A Moulded Case Circuit Breaker, Thermal-Magnetic Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 250A frame
  • Rated Current: 180A
  • Number of Poles: 4P
  • Trip Unit: Thermal-magnetic
  • Breaking Capacity: 36kA at 380/400/415V AC
  • Rated Operational Voltage: 380/400/415V AC, with operation up to 690V AC depending on application
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Neutral Protection: Protected neutral configuration
  • Utilisation Category: A
  • Isolation: Suitable for isolation
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 operating cycles at 415V AC and rated current
  • Reference Standard: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.5 kg
Key Features
  • Four-pole protection for three-phase and neutral distribution systems
  • Thermal-magnetic trip protection for overload and short-circuit conditions
  • 36kA short-circuit breaking capacity at 380/400/415V AC
  • 250A frame with an 180A rated current
  • Protected neutral configuration
  • Suitable for fixed mounting and isolation applications
  • Suitable for industrial, commercial and switchboard distribution equipment
  • Optional accessories are available across the NM8N range
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000 and the switchboard manufacturer's requirements. Verify fault levels, discrimination, conductor sizing, terminal torque and protective-device settings before energisation.
Applications
  • Switchboard mains protection
  • Three-phase commercial distribution boards
  • Industrial power distribution systems
  • Power centres and motor control centres
  • Protection of feeders and submains
  • Low-voltage electrical distribution up to the applicable rated voltage
Standards & Compliance
  • IEC/EN 60947-2 for moulded case circuit breakers; Australian and New Zealand adoption is AS/NZS IEC 60947.2:2015
  • Installation and selection should comply with AS/NZS 3000
Environmental Benefits
  • Resettable circuit-breaker design avoids routine replacement waste associated with single-use fuses
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Supports reliable electrical distribution and protection, helping prevent equipment damage from overloads and short circuits
Warranty Information

CHINT warranty policy indicates 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels; contract terms and local distributor conditions may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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