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MCCB 3P 200A 50kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271174
$614.10 List price: $818.80
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Chint NM8N 200A 3P MCCB features 50kA breaking capacity, thermal-magnetic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N-250S/200/3 MCCB, 200A 3P moulded case circuit breaker, 50kA thermal-magnetic circuit breaker

Technical Specifications
  • Device Type: Moulded case circuit breaker
  • Poles: 3P
  • Rated Current: 200 A
  • Frame Size: 250 A
  • Trip Unit: Adjustable thermal-magnetic
  • Thermal Adjustment Range: 140–200 A, 0.7–1.0 x In
  • Breaking Capacity: 50 kA at 380/400/415 V AC
  • Rated Operational Voltage: Up to 690 V AC, 50/60 Hz
  • Rated Insulation Voltage: 1,000 V
  • Rated Impulse Withstand Voltage: 8 kV
  • Utilisation Category: A
  • Connection: Fixed front connection; rear and plug-in options available for the NM8N-250 frame
  • Mechanical Endurance: 15,000 operating cycles
  • Electrical Endurance: 6,000 operating cycles at 415 V AC and rated current
  • Standards Basis: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • Three-pole protection for three-phase distribution circuits
  • 50 kA short-circuit breaking capacity at 415 V AC
  • Adjustable thermal overload and magnetic short-circuit protection
  • 250 A frame accommodates the 200 A rated trip setting
  • Suitable for switchboard mains and sub-mains protection
  • Supports vertical or horizontal installation with top or bottom line entry
  • Maintenance-free operating mechanism
Professional Installation Requirements
  • Installation, adjustment and commissioning must be performed by a licensed electrician in accordance with the manufacturer’s instructions, AS/NZS 3000 and applicable switchboard requirements. Verify fault levels, discrimination, conductor sizing and Australian conformity documentation before energising.
Applications
  • Main switchboard incomer protection
  • Sub-main circuit protection
  • Commercial and industrial power distribution
  • Three-phase switchboards and distribution boards
  • Protection of feeders and electrical equipment against overload and short circuit
Standards & Compliance
  • AS/NZS 60947.2 is the applicable Australian/New Zealand product standard for low-voltage circuit-breakers; verify the specific unit’s Australian conformity documentation before installation.
  • Electrical installation and switchboard integration should comply with AS/NZS 3000 and applicable switchboard requirements.
Environmental Benefits
  • RoHS declarations are available for the NM8N product family, supporting restriction of hazardous substances.
  • The steel, copper and aluminium content of the breaker can be recovered through appropriate electrical-equipment recycling streams.
  • Long mechanical and electrical service life can reduce replacement frequency and associated material waste.
  • Accurate overload and short-circuit protection helps reduce damage to downstream electrical equipment.
Warranty Information

CHINT low-voltage apparatus supplied through authorised sales channels is covered for defects in materials and workmanship for 27 months from the date of manufacture, subject to the applicable contract and warranty conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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