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MCCB 3P 160A 50kA Magnetic Only 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271428
$2,580.70 List price: $3,440.90
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Chint NM8N 160A 3P MCCB features 50kA breaking capacity, magnetic-only trip unit for motor protection and a 250A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-250S Magnetic Circuit Breaker, 160A Motor Protection MCCB, 3-Pole Moulded Case Circuit Breaker

Technical Specifications
  • Breaker Type: Moulded case circuit breaker
  • Frame Size: 250A frame
  • Rated Current: 160A
  • Number of Poles: 3P
  • Release Type: Magnetic-only motor protection
  • Breaking Capacity: 50kA at AC 380/400/415V
  • Rated Operational Voltage: 380/400/415V AC, 50/60Hz
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Magnetic Trip Setting: 9–14 × In
  • Utilisation Category: A
  • Standard: IEC/EN 60947-2
  • Connection: Fixed, front connection
  • Mechanical Life: 25,000 operating cycles
  • Electrical Life: 10,000 operating cycles at AC 415V and rated current
  • Operating Temperature: -40°C to +70°C
  • Dimensions (H x L x W): 157mm x 105mm x 88.7mm
  • Weight: 1.85 kg
Key Features
  • Three-pole protection for three-phase circuits
  • Magnetic-only release intended for motor protection applications
  • 50kA short-circuit breaking capacity at common low-voltage operating voltages
  • 250A frame accommodates the 160A rated current
  • Adjustable magnetic trip range from 9 to 14 times rated current
  • Suitable for switchboards, motor feeders and industrial distribution equipment
  • Front-mounted fixed installation arrangement
  • Designed for coordination with a separate overload relay where motor overload protection is required
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000 and the manufacturer's instructions. Magnetic-only protection does not provide thermal overload protection, so suitable coordinated motor overload protection is required where applicable.
Applications
  • Motor feeders requiring high short-circuit protection
  • Three-phase industrial machinery
  • Switchboard incomer or feeder protection when correctly coordinated with upstream and downstream devices
  • Commercial and industrial low-voltage distribution systems
  • Motor control centres and plant electrical installations
Standards & Compliance
  • IEC/EN 60947-2 for low-voltage circuit-breakers
  • Australian installation should comply with AS/NZS 3000 Wiring Rules
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Metal and thermoplastic components can be separated for appropriate recycling at end of service life
  • RoHS declaration is available for the NM8N product range
  • Provides durable fault protection that can help reduce damage to downstream electrical equipment
Warranty Information

CHINT low-voltage apparatus is covered for defects in materials and workmanship for 27 months from the date of manufacture when purchased through authorised sales channels. Contractual terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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