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MCCB 4P 160A 50kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271184
$1,257.30 List price: $1,676.40
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Chint NM8N 160A 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: CHINT NM8N-250S-160/4/22, 160A 4P MCCB, 250A Frame Moulded Case Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Series: NM8N
  • Frame Size: 250A
  • Rated Current: 160A
  • Number of Poles: 4P
  • Trip Unit: Adjustable thermal-magnetic
  • Overload Adjustment Range: 112–160A, 0.7–1.0 x In
  • Magnetic Trip Setting: Fixed at 10 x In
  • Breaking Capacity: 50kA at 380/400/415V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Neutral Protection: Protected neutral with phase-equivalent protection
  • Frequency: 50/60Hz
  • Mounting: Fixed type
  • Utilisation Category: Category A
  • Ingress Protection: IP40
  • Mechanical Endurance: Up to 15,000 operating cycles
  • Electrical Endurance: Up to 6,000 operating cycles
  • Connection: Front connection with copper conductors or cable lugs
  • Dimensions (H x L x W): 157mm x 140mm x 88.7mm
  • Weight: 2.5 kg
Key Features
  • 50kA short-circuit breaking capacity at 380–415V AC
  • Four-pole configuration for three-phase and neutral systems
  • Adjustable thermal overload protection from 112A to 160A
  • Thermal-magnetic protection for overload and short-circuit faults
  • 250A frame accommodates a 160A rated current
  • Protected neutral option supports comprehensive four-pole protection
  • Suitable for fixed switchboard and power-distribution installations
  • Accessory-compatible design with optional auxiliary, alarm, shunt and undervoltage releases
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, the manufacturer's instructions and applicable switchboard requirements. Confirm prospective fault current, discrimination, cable sizing and local certification before installation.
Applications
  • Switchboard mains protection
  • Commercial and industrial power distribution
  • Three-phase distribution boards with neutral protection
  • Building services and plant switchboards
  • Incoming protection for low-voltage distribution assemblies
  • Overload and short-circuit protection for feeder circuits
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand product standard for low-voltage circuit-breakers of this type
  • AS/NZS 3000 applies to selection, installation and verification within Australian electrical installations
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Modular construction and compatible accessories can support repair or upgrading rather than complete replacement
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling channels
Warranty Information

CHINT's general warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture against defects in materials and workmanship when purchased through authorised sales channels; contract terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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