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MCCB 4P 350A 36kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268945
$2,646.90 List price: $3,529.20
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Chint NM8N 350A 4P MCCB features 36kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 400A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Thermal-Magnetic Circuit Breaker, NM8N-400C TM 350A 4P

Technical Specifications
  • Series: NM8N
  • Rated Current: 350A
  • Number of Poles: 4P
  • Frame Rating: 400A
  • Trip Unit: Thermal-magnetic
  • Breaking Capacity: 36kA at 380/400/415V AC
  • Rated Operational Voltage: 380/400/415V AC, maximum 690V AC
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Thermal Adjustment Range: 0.7–1.0 x In
  • Utilisation Category: A
  • Neutral Protection: Protected neutral pole
  • Isolation Suitability: Suitable for isolation
  • Mechanical Life: Up to 15,000 operating cycles
  • Electrical Life: Up to 10,000 operating cycles at 415V AC
  • Dimensions (H x L x W): 255mm x 185mm x 113mm
  • Weight: 7 kg
Key Features
  • Four-pole configuration for three-phase and neutral circuit protection
  • Thermal-magnetic trip unit for overload and short-circuit protection
  • 36kA ultimate short-circuit breaking capacity at 380/400/415V AC
  • 400A frame accommodates rated currents up to 400A
  • Protected neutral for comprehensive switchboard protection
  • Adjustable thermal trip setting from 70% to 100% of rated current
  • Suitable for switchboard mains and feeder protection
  • Front connection fixed MCCB design
Professional Installation Requirements
  • Installation, adjustment and commissioning should be performed by a licensed electrical contractor in accordance with the manufacturer's instructions and applicable Australian wiring requirements. De-energise and verify isolation before installation or maintenance.
Applications
  • Main switchboard protection
  • Commercial and industrial distribution boards
  • Three-phase feeder protection
  • Large HVAC and mechanical services switchboards
  • Motor and equipment feeder protection where the thermal-magnetic characteristics are suitable
  • Overload and short-circuit protection for low-voltage distribution circuits
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
Environmental Benefits
  • Long operating life can reduce replacement frequency and associated material waste
  • Metal components such as copper and steel can generally be recovered through appropriate electrical equipment recycling streams
  • Overload and short-circuit protection helps limit damage to downstream electrical equipment, reducing premature replacement
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels, subject to the applicable contract and warranty conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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