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MCCB 4P 160A 150kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271256
$2,117.50 List price: $2,823.30
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Chint NM8N 160A 4P MCCB features 150kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N-250R 160A MCCB, 4P Moulded Case Circuit Breaker, Thermal-Magnetic Circuit Breaker

Technical Specifications
  • Rated Current: 160A
  • Frame Size: 250A
  • Number of Poles: 4P
  • Trip Unit: Thermal-magnetic
  • Ultimate Short-Circuit Breaking Capacity: 150kA at 380/400/415V AC
  • Service Short-Circuit Breaking Capacity: 150kA at 380/400/415V AC
  • Rated Operational Voltage: 380/400/415V AC, with operation available up to 690V AC depending on breaking-capacity rating
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Rated Frequency: 50/60Hz
  • Thermal Trip Adjustment: 0.7–1.0 x In for 4-pole configurations
  • Magnetic Trip Adjustment: 7–12 x In for 125–160A thermal-magnetic models
  • Neutral Configuration: Protected neutral
  • Utilisation Category: A
  • Isolation: Suitable for isolation
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 cycles at 415V AC and rated current
  • Dimensions (H x L x W): 157mm x 140mm x 88.7mm
  • Weight: 2.5 kg
Key Features
  • High 150kA short-circuit breaking capacity at 415V AC
  • Four-pole construction for three-phase systems with neutral protection
  • Adjustable thermal and magnetic trip settings
  • 250A frame with a 160A rated current
  • Suitable for switchboard incomer and mains protection applications
  • Suitable for vertical or horizontal installation
  • Top or bottom line entry capability
  • Moulded-case construction with zero arcing distance
  • Compatible with optional auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
  • Installation, testing and commissioning should be performed by a licensed electrician in accordance with the manufacturer's instructions, AS/NZS 3000 and the requirements for low-voltage switchboards. Verify fault levels, protection settings, discrimination and enclosure assembly compliance before energising.
Applications
  • Switchboard mains protection
  • Three-phase commercial and industrial distribution boards
  • Low-voltage power distribution systems
  • Incomer protection for commercial buildings and industrial facilities
  • Protection of feeders and high-fault-level distribution circuits
Standards & Compliance
  • AS/NZS IEC 60947.2 for low-voltage circuit-breakers
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated material waste
  • Metal components in the breaker assembly can be recovered through appropriate electrical equipment recycling streams
  • Adjustable protection settings support correct system coordination and can help minimise unnecessary equipment damage during faults
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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