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MCCB 3P 250A 36kA Magnetic Only 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271426
$2,117.50 List price: $2,823.30
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Chint NM8N 250A 3P MCCB features 36kA breaking capacity, magnetic-only trip unit for motor protection and a 250A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, Magnetic MCCB, Motor Protection MCCB, 3-Pole 250A Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Series: NM8N
  • Number of Poles: 3P
  • Frame Size: 250A
  • Rated Current: 250A
  • Trip Unit: Magnetic-only release
  • Ultimate Breaking Capacity: 36kA
  • Rated Insulation Voltage: 1,000V AC
  • Rated Operational Voltage: Up to 690V AC, subject to configuration
  • Magnetic Trip Setting: Adjustable approximately 9–14 times rated current for motor protection
  • Mechanical Durability: Up to 15,000 operations
  • Electrical Durability: Up to 1,500 operations
  • Mounting: Fixed installation
  • Connection: Front connection, subject to accessory configuration
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • Magnetic-only trip unit for short-circuit protection without integral overload protection
  • 250A frame and rated current for high-current switchboard applications
  • Three-pole configuration for three-phase systems
  • 36kA ultimate breaking capacity
  • Adjustable magnetic trip range suited to motor starting characteristics
  • Compatible with selected NM8N auxiliary and installation accessories
  • Suitable for industrial, commercial and motor-control switchboards
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, approved switchboard practices and applicable Australian electrical regulations. Separate overload protection is required where the magnetic-only release does not provide thermal overload protection.
Applications
  • Motor short-circuit protection in three-element motor starter arrangements
  • Switchboard mains and sub-main protection
  • Industrial power distribution boards
  • Commercial electrical distribution systems
  • Three-phase machinery and equipment protection
Standards & Compliance
  • Applicable circuit-breaker standard: AS/NZS IEC 60947.2:2015
  • Manufacturer product documentation references IEC 60947-1 and IEC 60947-2
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Metallic components such as copper, aluminium and steel may be recoverable through appropriate electrical equipment recycling streams
  • Magnetic-only protection avoids the electronic components and standby energy consumption associated with electronic trip units
Warranty Information

Warranty coverage is subject to CHINT Australia or the authorised distributor's current terms. Claims generally require correct installation, operation within the published specifications and retention of purchase documentation; misuse, unauthorised modification and incorrect installation may be excluded.

Available Now

Available through authorised CHINT distributors in Australia.

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