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MCCB 3P 225A 70kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271199
$926.40 List price: $1,235.20
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Chint NM8N 225A 3P MCCB features 70kA breaking capacity, thermal-magnetic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N-250Q TM 225 3P moulded case circuit breaker, thermal-magnetic MCCB

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Rated Current: 225A
  • Frame Size: 250A
  • Number of Poles: 3P
  • Trip Unit: Thermal-magnetic, TM
  • Ultimate Short-Circuit Breaking Capacity Icu: 70kA at 380/400/415V AC
  • Service Short-Circuit Breaking Capacity Ics: 70kA at 380/400/415V AC
  • Rated Operational Voltage: 380/400/415V AC, 50/60Hz
  • Rated Insulation Voltage Ui: 1000V
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Utilisation Category: A
  • Mounting: Fixed, front connection
  • Terminal Connection: Screw terminals
  • Operating Temperature: -40°C to +70°C
  • Mechanical Life: 25,000 operating cycles
  • Electrical Life: 10,000 operating cycles at 415V AC and rated current
  • Standard Basis: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • 70kA short-circuit breaking capacity for high-fault-level distribution systems
  • Thermal-magnetic trip unit for overload and short-circuit protection
  • Three-pole configuration for three-phase switchboards
  • 250A frame accommodates the 225A rated current
  • Suitable for switchboard mains and sub-mains protection
  • Can be used for isolation where correctly installed and configured
  • Zero arcing distance design
  • Compatible with optional auxiliary, alarm, shunt-trip and undervoltage accessories
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with applicable Australian electrical legislation, AS/NZS 3000 and the switchboard manufacturer's requirements. Confirm fault level, discrimination, cable sizing and local conformity requirements before energisation.
Applications
  • Main switchboard protection
  • Distribution-board mains protection
  • Commercial and industrial sub-mains
  • Three-phase power distribution systems
  • High prospective short-circuit current installations
Standards & Compliance
  • AS/NZS 60947-2 is the relevant Australian/New Zealand product standard for low-voltage circuit-breakers; confirm product conformity and required RCM or local certification documentation before installation.
Environmental Benefits
  • Thermal-magnetic protection can help prevent equipment damage and premature replacement caused by overloads and short circuits
  • Durable moulded-case construction supports long service life and reduced replacement waste
  • Electrical components and metals can be separated for responsible end-of-life recycling where suitable facilities are available
Warranty Information

CHINT warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture when products are sold through authorised channels. Contract terms and local Australian warranty conditions may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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