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MCCB 3P 160A 70kA Basic Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271344
$1,237.40 List price: $1,649.90
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Chint NM8N 160A 3P MCCB features 70kA breaking capacity, basic electronic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Three-Pole Electronic Circuit Breaker, NM8N-250Q-EN-160/3

Technical Specifications
  • Rated Current: 160 A
  • Number of Poles: 3P
  • Frame Size: 250 A
  • Trip Unit: Basic electronic, EN type
  • Breaking Capacity Icu: 70 kA at 380/400/415 V AC
  • Service Breaking Capacity Ics: 70 kA at 380/400/415 V AC
  • Rated Operational Voltage: 380/400/415 V AC
  • Maximum Operational Voltage: 690 V AC
  • Rated Insulation Voltage: 1000 V AC
  • Rated Impulse Withstand Voltage: 8 kV
  • Frequency: 50/60 Hz
  • Utilisation Category: A
  • Mounting: Surface mounting with screw terminals
  • Ingress Protection: IP40
  • Mechanical Endurance: Up to 25,000 operating cycles
  • Electrical Endurance: Up to 10,000 operating cycles at 415 V AC and rated current
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 2 kg
Key Features
  • Three-pole MCCB for low-voltage power distribution
  • 250A frame with 160A rated current
  • Basic electronic trip unit for adjustable overcurrent protection
  • 70kA ultimate and service short-circuit breaking capacity at 380/400/415V AC
  • Suitable for switchboard mains and sub-mains protection
  • Compatible with optional auxiliary, alarm, shunt-trip, undervoltage and rotary-handle accessories
  • Suitable for isolation when installed in accordance with the manufacturer’s instructions
  • Operating temperature range of approximately -35°C to +70°C for the basic electronic type
Professional Installation Requirements
  • Installation, selection of protection settings and commissioning must be performed by a licensed electrician in accordance with the manufacturer’s instructions, AS/NZS 3000 and applicable switchboard requirements. Confirm fault levels, discrimination, cable ratings and local certification before energising.
Applications
  • Main incoming protection in commercial and industrial switchboards
  • Sub-main circuit protection
  • Three-phase power distribution systems
  • Protection of feeders, plant and large electrical equipment
  • Switchboard applications requiring high short-circuit breaking capacity
Standards & Compliance
  • Applicable product standard: AS/NZS 60947.2 for low-voltage circuit-breakers. The product is specified to IEC/EN 60947-2; verify Australian certification and RCM requirements for the intended installation before use.
Environmental Benefits
  • Metal components, including copper and steel, can be recovered through appropriate electrical equipment recycling streams
  • Electronic protection and adjustable trip settings can support accurate system protection and reduce unnecessary equipment replacement
  • Durable construction and high mechanical endurance can extend service life and reduce replacement waste
  • CHINT publishes RoHS documentation for the NM8N range, subject to the exact product configuration and market version
Warranty Information

CHINT’s published general policy for other low-voltage apparatus provides a 27-month warranty from the date of manufacture when supplied through authorised sales channels; contractual terms and Australian distributor conditions may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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