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MCCB 3P 125A 50kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271171
$879.20 List price: $1,172.20
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Chint NM8N 125A 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: NM8N-250S 3P 125A MCCB, moulded case circuit breaker, thermal-magnetic circuit breaker, 50kA MCCB

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Rated Current: 125A
  • Frame Size: 250A
  • Number of Poles: 3P
  • Trip Unit: Thermal-magnetic
  • Rated Short-Circuit Breaking Capacity Icu: 50kA at 380/400/415V AC
  • Rated Service Breaking Capacity Ics: 50kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Frequency: 50/60Hz
  • Utilisation Category: Category A
  • Standard Product Design: IEC/EN 60947-2
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 operating cycles at 415V AC
  • Ambient Operating Temperature: -40°C to +70°C
  • Connection Type: Fixed front connection
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • High 50kA fault interruption capability
  • 250A frame with 125A thermal-magnetic trip rating
  • Three-pole protection for three-phase distribution systems
  • Suitable for overload and short-circuit protection
  • Designed for switchboard mains and sub-mains applications
  • Compact moulded-case construction with zero arcing distance
  • Optional internal and external accessories available for the NM8N platform
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, AS/NZS 3000 and applicable switchboard requirements. Confirm fault levels, discrimination, conductor sizing and Australian certification before energising.
Applications
  • Switchboard mains protection
  • Sub-mains protection
  • Commercial and industrial power distribution
  • Three-phase feeder protection
  • Building services distribution boards
  • Industrial control and power distribution assemblies
Standards & Compliance
  • Applicable Australian product standard: AS/NZS 60947.2 for circuit-breakers
  • The product is specified to IEC/EN 60947-2; verify the exact Australian certification, RCM status and compliance documentation for the supplied unit before installation
Environmental Benefits
  • Copper, aluminium and steel components can be recovered through established electrical equipment recycling streams
  • Long mechanical and electrical service life can reduce replacement frequency and associated waste
  • Thermal-magnetic protection helps limit damage to downstream equipment during overload and short-circuit events
Warranty Information

CHINT's general warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture when purchased through authorised sales channels, subject to contract terms and warranty conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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