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MCCB 4P 315A 150kA Thermal Magnetic 400A Frame NM8N Chint

BRAND: CABAC
SKU: 269230
$3,639.50 List price: $4,852.60
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Chint NM8N 315A 4P MCCB features 150kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 400A frame. For switchboard mains protection.

Alternatively Known As: 4-pole MCCB, moulded case circuit breaker, thermal-magnetic circuit breaker, main switch MCCB

Technical Specifications
  • Product Series: NM8N-400R
  • Rated Current: 315 A
  • Frame Size: 400 A
  • Number of Poles: 4P, protected neutral configuration
  • Trip Unit: Thermal-magnetic, TM
  • Ultimate Breaking Capacity: 150 kA at 380/400/415 V AC
  • Service Breaking Capacity: 150 kA at 380/400/415 V AC
  • Rated Operational Voltage: Up to 690 V AC
  • Rated Insulation Voltage: 1,000 V AC
  • Rated Impulse Withstand Voltage: 8 kV
  • Thermal Adjustment Range: 0.7–1.0 x In
  • Magnetic Trip Adjustment: 5–10 x In
  • Neutral Protection: Neutral pole protected and operated with the three phase poles
  • Utilisation Category: A
  • Mounting: Fixed mounting with front or rear connection
  • Installation Position: Vertical or horizontal; top or bottom line entry
  • Applicable Product Standard: IEC/EN 60947-2
  • Operating Temperature: -40 °C to +70 °C
  • Dimensions (H x L x W): 255mm x 185mm x 113mm
  • Weight: 5.5 kg
Key Features
  • 150 kA high breaking capacity for high fault-level applications
  • 315 A thermal-magnetic overcurrent protection
  • 400 A frame accommodates 250–400 A rated-current variants
  • Four-pole configuration with protected neutral
  • Adjustable thermal and magnetic trip settings
  • Suitable for switchboard mains and secondary distribution protection
  • Can be installed vertically or horizontally
  • Top or bottom line entry options
  • Optional accessories include auxiliary contacts, shunt trip, undervoltage release, motor operator and rotary handles
Professional Installation Requirements
  • Installation, selection of protective settings and connection to a switchboard must be performed by a licensed electrical contractor. The completed switchboard assembly must be designed, verified and installed in accordance with applicable Australian requirements, including AS/NZS 3000 and AS/NZS 61439 where applicable.
Applications
  • Main incoming protection in commercial switchboards
  • Industrial power distribution boards
  • Large commercial building electrical distribution
  • Data centre and infrastructure switchboards
  • Motor and equipment feeder protection where suitable coordination has been confirmed
  • High prospective fault-current installations
Standards & Compliance
  • AS/NZS IEC 60947.2 is the relevant Australian/NZ product-standard adoption for circuit-breakers of this type; verify the product certification and RCM requirements before installation
  • AS/NZS 61439.1 and AS/NZS 61439.2 apply to the design and verification of the completed low-voltage switchboard assembly
  • AS/NZS 3000 applies to the electrical installation and wiring requirements
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and equipment waste
  • Metallic conductors and major internal components are recoverable through appropriate electrical-equipment recycling streams
  • RoHS-related documentation is available for the NM8N product family, supporting restriction of hazardous substances
  • Accurate overload and short-circuit protection can reduce damage to downstream electrical equipment and extend system life
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 sales contract and exclusions for incorrect installation, misuse, unauthorised modification or repair.

Available Now

Available through authorised CHINT distributors in Australia.

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