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MCCB 3P 250A 150kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271248
$1,389.60 List price: $1,852.80
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Chint NM8N 250A 3P MCCB features 150kA breaking capacity, thermal-magnetic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, 3-Phase MCCB, Thermal-Magnetic Circuit Breaker, Main Switchboard Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Number of Poles: 3P
  • Frame Rating: 250A
  • Rated Current: 250A
  • Trip Unit: Thermal-magnetic
  • Ultimate Breaking Capacity Icu: 150kA at 380/400/415V AC
  • Service Breaking Capacity Ics: 150kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage Ui: 1000V AC
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Utilisation Category: A
  • Electrical Life: Up to 10,000 operations at 415V AC
  • Mechanical Life: Up to 25,000 operations
  • Standard Product Series: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • High 150kA short-circuit breaking capacity at 380/400/415V AC
  • Thermal-magnetic trip unit for overload and short-circuit protection
  • Three-pole configuration for three-phase distribution systems
  • 250A frame with a 250A rated current
  • Suitable for fixed front or rear connection arrangements
  • Zero arcing distance design supports compact switchboard installation
  • Suitable for isolation when installed in accordance with the manufacturer’s instructions
  • Compatible with optional auxiliary, shunt, under-voltage and motor operating accessories
Professional Installation Requirements
  • Installation, testing and commissioning must be carried out by a licensed electrician in accordance with AS/NZS 3000, the manufacturer’s instructions and the requirements of the switchboard assembly. Verify fault levels, cable ratings, discrimination and operating voltage before commissioning.
Applications
  • Main switchboard protection
  • Sub-main circuit protection
  • Commercial and industrial distribution boards
  • Low-voltage three-phase power distribution
  • Protection of cables and electrical equipment against overload and short circuit
  • Power centre and motor control centre installations where a 250A MCCB is specified
Standards & Compliance
  • AS/NZS IEC 60947.2 for low-voltage circuit-breakers
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Metal components such as copper and steel can be recovered for recycling at end of service life
  • RoHS-related product documentation is available for the NM8N series, supporting reduced use of restricted hazardous substances
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 terms.

Available Now

Available through authorised CHINT distributors in Australia.

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