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MCCB 4P 250A 50kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271188
$1,257.30 List price: $1,676.40
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Chint NM8N 250A 4P MCCB features 50kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, 4P MCCB, Thermal-Magnetic Circuit Breaker, NM8N-250S-250/4/22

Technical Specifications
  • Frame Size: 250A
  • Rated Current: 250A
  • Number of Poles: 4P with protected neutral
  • Trip Unit: Adjustable thermal-magnetic
  • Breaking Capacity: 50kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 8kV
  • Overload Adjustment: 0.7–1.0 x In
  • Magnetic Trip Adjustment: 5–10 x In for 180–250A distribution ratings
  • Utilisation Category: A
  • Isolation: Suitable for isolation
  • Mechanical Life: 25,000 operating cycles
  • Electrical Life: 10,000 operating cycles at 415V AC and rated current
  • Product Standard: IEC 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.5 kg
Key Features
  • Four-pole configuration with protected neutral
  • 50kA short-circuit breaking capacity at typical low-voltage distribution voltages
  • Adjustable thermal overload and magnetic short-circuit protection
  • 250A frame with 250A rated current
  • Suitable for switchboard mains and feeder protection
  • Can be installed vertically or horizontally
  • Top or bottom line entry supported
  • Compatible with CHINT NM8N accessories and auxiliary components
Professional Installation Requirements
  • Installation, selection and commissioning must be performed by a licensed electrical professional in accordance with applicable wiring rules, fault-level calculations, manufacturer instructions and switchboard requirements. Verify that the product configuration and certification are suitable for the Australian installation before use.
Applications
  • Main switchboard protection
  • Commercial and industrial power distribution
  • Low-voltage feeder protection
  • Building services switchboards
  • Data centre and infrastructure power distribution
  • Overload and short-circuit protection for three-phase four-wire systems
Standards & Compliance
  • Designed to IEC 60947-2; AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand circuit-breaker standard reference for this product category.
Environmental Benefits
  • RoHS declarations are available for the NM8N product family, supporting restriction of hazardous substances in manufacture
  • Long mechanical and electrical service life can reduce replacement frequency and associated material waste
  • Copper and aluminium components used in electrical switchgear are recyclable at end of service life
Warranty Information

CHINT warranty policy states 27 months from the date of manufacture for other low-voltage apparatus sold through authorised sales channels, subject to the applicable contract and warranty terms.

Available Now

Available through authorised CHINT distributors in Australia.

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