SCHNAP Logo

Making Trade Life Easy!
Trade Discount 25%

MCCB 4P 250A 150kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 269229
$3,639.50 List price: $4,852.60
+ −
30 Days Return Electricians Unlock Trade Access
Chint NM8N 250A 4P MCCB features 150kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 400A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N 400A Frame MCCB, 250A 4-Pole Moulded Case Circuit Breaker, 150kA MCCB with Protected Neutral

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 400A
  • Rated Current: 250A
  • Pole Configuration: 4P with protected neutral
  • Trip Unit: Thermal-magnetic
  • Ultimate Breaking Capacity Icu: 150kA at 380/415V AC
  • Service Breaking Capacity Ics: 150kA at 380/415V AC
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage Ui: 1000V
  • Rated Impulse Withstand Voltage Uimp: 12kV
  • Thermal Adjustment Range: 0.7–1.0 times rated current
  • Magnetic Adjustment Range: 5–10 times rated current
  • Utilisation Category: Category A
  • Mounting: Fixed installation with front or rear connection
  • Standard Product Series: NM8N-400R
  • Dimensions (H x L x W): 255mm x 113mm x 185mm
  • Weight: 6.7 kg
Key Features
  • 400A frame with a 250A adjustable thermal-magnetic trip unit
  • Four-pole switching with protected neutral pole
  • 150kA short-circuit breaking capacity at 380/415V AC
  • Adjustable overload and instantaneous short-circuit protection
  • Suitable for switchboard mains and high-fault-level distribution protection
  • High insulation rating and impulse withstand capability
  • Designed for commercial, industrial and infrastructure power distribution
Professional Installation Requirements
  • Installation, commissioning and adjustment must be performed by a licensed electrician or suitably qualified electrical contractor in accordance with applicable Australian wiring rules, switchboard requirements and the manufacturer's instructions.
Applications
  • Switchboard mains protection
  • Commercial and industrial power distribution
  • Main incoming protection for high-fault-level installations
  • Protection of feeders, busbars and large electrical equipment
  • Four-wire three-phase systems requiring protected neutral switching
Standards & Compliance
  • AS/NZS IEC 60947.2 for low-voltage circuit-breakers
Environmental Benefits
  • RoHS-related compliance documentation is available for the NM8N product series, supporting reduced use of restricted hazardous substances
  • Durable moulded-case construction and high mechanical life can reduce replacement frequency and material waste
  • Adjustable protection settings can support efficient system coordination and help minimise unnecessary equipment damage
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

Related Products