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MCCB 4P 250A 36kA Standard Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271380
$1,786.60 List price: $2,382.20
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Chint NM8N 250A 4P MCCB features 36kA breaking capacity, standard electronic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N-250C EM MCCB, 4P 250A Electronic Circuit Breaker, Moulded Case Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 250A
  • Rated Current: 250A
  • Number of Poles: 4P with protected neutral
  • Trip Unit: Standard electronic release, EM type
  • Breaking Capacity: 36kA Icu and Ics at 380–415V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 8kV
  • Frequency: 50/60Hz
  • Utilisation Category: A
  • Installation: Fixed mounting with front or rear connection
  • Electronic Protection: Adjustable long-time, short-time and instantaneous overcurrent protection
  • Mechanical Life: Up to 25,000 operating cycles
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.65 kg
Key Features
  • 250A rated current with a 250A frame
  • Four-pole configuration with protected neutral pole
  • Standard electronic trip unit for accurate adjustable protection
  • 36kA short-circuit breaking capacity at 380–415V AC
  • Overload and short-circuit protection for low-voltage distribution systems
  • Suitable for switchboard incomer and mains protection applications
  • Can be installed vertically or horizontally
  • Supports top or bottom line connection
  • Compact moulded-case construction with modular accessory options
Professional Installation Requirements
  • Installation, adjustment, testing and commissioning must be carried out by a licensed electrical contractor in accordance with applicable wiring rules, switchboard requirements and the manufacturer's instructions.
Applications
  • Switchboard mains and incomer protection
  • Commercial and industrial low-voltage distribution boards
  • Building services and infrastructure power distribution
  • Industrial machinery and electrical equipment protection
  • Sub-main and feeder circuit protection
Standards & Compliance
  • Applicable product standard: AS/NZS 60947.2 for low-voltage circuit-breakers; manufacturer documentation identifies compliance with IEC/EN 60947-2. Confirm Australian regulatory approval and RCM requirements before installation.
Environmental Benefits
  • Moulded-case construction and metallic conductive components can be recovered for recycling at end of service life
  • Electronic protection settings can support selective coordination and reduce unnecessary circuit interruption
  • Long mechanical service life helps reduce replacement frequency and material waste
  • Designed for repairable switchboard assemblies where accessories and components can be serviced or replaced
Warranty Information

CHINT low-voltage equipment is generally covered for 12 months from the date of production under normal storage, transport and operating conditions. Warranty coverage is subject to the applicable supply contract and excludes damage caused by incorrect installation, misuse, unauthorised modification or poor maintenance.

Available Now

Available through authorised CHINT distributors in Australia.

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