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MCCB 4P 400A 70kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 268970
$3,163.00 List price: $4,217.40
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Chint NM8N 400A 4P MCCB features 70kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 400A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-400Q TM 400 4C, 400A 4P MCCB, 70kA moulded case circuit breaker, protected-neutral MCCB

Technical Specifications
  • Frame Size: 400 A
  • Rated Current: 400 A
  • Number of Poles: 4P
  • Trip Unit: Adjustable thermal-magnetic TM
  • Neutral Protection: Protected neutral, 4C configuration
  • Ultimate Breaking Capacity: 70 kA
  • Rated Operational Voltage: 380–415 V AC
  • Rated Frequency: 50/60 Hz
  • Overload Setting Range: 0.7–1.0 × In
  • Instantaneous Short-Circuit Setting: 5–10 × In
  • Mounting: Fixed, front connection
  • Isolation Suitability: Suitable for isolation
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.5 kg
Key Features
  • 70kA short-circuit breaking capacity
  • Adjustable thermal-magnetic overload and instantaneous trip protection
  • Four-pole construction with protected neutral
  • 400A frame and 400A rated current
  • Suitable for switchboard mains and low-voltage power distribution
  • Designed for reliable protection of cables, busbars and connected equipment
  • Compatible with optional CHINT NM8N accessories including auxiliary, alarm, shunt-trip and undervoltage releases
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, applicable switchboard requirements and AS/NZS 3000. De-energise and verify isolation before installation or servicing.
Applications
  • Main incoming protection in distribution switchboards
  • Commercial and industrial low-voltage power distribution
  • Protection of mains feeders, busbars and large subcircuits
  • Overload and short-circuit protection for three-phase four-wire systems
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 – applicable Australian/New Zealand standard for low-voltage circuit-breakers
Environmental Benefits
  • Long service life can reduce replacement frequency and associated material waste
  • Metal terminals and conductive components can be recovered through appropriate electrical equipment recycling
  • Provides protective coordination that can help limit damage to downstream equipment during overloads and short circuits
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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