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MCCB 3P 250A 100kA Standard Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271405
$1,919.00 List price: $2,558.70
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Chint NM8N 250A 3P MCCB features 100kA breaking capacity, standard electronic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: NM8N 250A moulded case circuit breaker, 3-pole electronic MCCB, 250A switchboard circuit breaker

Technical Specifications
  • Frame Size: 250A
  • Rated Current: 250A at 40°C
  • Number of Poles: 3P
  • Trip Unit: Standard electronic type EN
  • Ultimate Breaking Capacity Icu: 100kA at 380–415V AC
  • Service Breaking Capacity Ics: 100kA at 380–415V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage Ui: 1,000V AC
  • Rated Impulse Withstand Voltage Uimp: 8kV
  • Frequency: 50/60Hz AC
  • Utilisation Category: A
  • Ingress Protection: IP40
  • Mechanical Endurance: 15,000 operating cycles
  • Electrical Endurance: 6,000 operating cycles
  • Connection Type: Fixed front connection
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 2 kg
Key Features
  • High 100kA short-circuit breaking capacity at 380–415V AC
  • Electronic trip unit for adjustable overcurrent protection
  • Three-pole configuration for three-phase low-voltage distribution
  • 250A frame and 250A rated current
  • Suitable for switchboard mains and sub-mains protection
  • Maintenance-free construction
  • Compatible with selected NM8N accessories and auxiliary devices
Professional Installation Requirements
  • Installation, commissioning and adjustment must be performed by a licensed electrician in accordance with the manufacturer's instructions, applicable Australian electrical regulations and switchboard design requirements. Confirm prospective fault current, discrimination, cable protection, terminal torque and required local certification before energising.
Applications
  • Main incomer protection in low-voltage switchboards
  • Sub-main protection in commercial and industrial distribution boards
  • Three-phase feeder protection
  • Overload and short-circuit protection for distribution circuits
  • Industrial power distribution and motor control assemblies
Standards & Compliance
  • IEC/EN 60947-2 product standard basis for low-voltage circuit-breakers
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand circuit-breaker standard; verify local approval and RCM requirements before installation
Environmental Benefits
  • Durable construction and long mechanical service life can reduce replacement frequency and associated waste
  • Metal components can be recovered for recycling at end of product life
  • Electronic protection enables accurate circuit protection, helping reduce damage to downstream equipment
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus, including MCCBs, when purchased through authorised sales channels. Contract terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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