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MCCB 4P 32A 150kA Standard Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271416
$2,977.70 List price: $3,970.30
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Chint NM8N 32A 4P MCCB features 150kA breaking capacity, standard electronic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N 250A Frame MCCB, 4-Pole Electronic MCCB, High-Breaking-Capacity MCCB, Main Switchboard Circuit Breaker

Technical Specifications
  • Series: NM8N
  • Frame Size: 250 A
  • Rated Current: 32 A
  • Number of Poles: 4P, protected neutral configuration
  • Trip Unit: Standard electronic type, EM
  • Ultimate Breaking Capacity: 150 kA, R breaking-capacity code
  • Rated Operational Voltage: Up to 690 V AC
  • Rated Insulation Voltage: 1,000 V
  • Rated Frequency: 50/60 Hz
  • Utilisation Category: A
  • Mounting: Fixed installation
  • Ingress Protection: IP40
  • Operating Temperature: -40 °C to +70 °C
  • Mechanical Endurance: Up to 25,000 operating cycles
  • Electrical Endurance: Up to 10,000 cycles at 415 V AC
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.65 kg
Key Features
  • High 150 kA ultimate short-circuit breaking capacity
  • Standard electronic trip unit for adjustable and accurate overcurrent protection
  • Protected neutral pole suitable for four-wire distribution systems
  • 250 A frame with a 32 A electronic rating
  • Provides overload and short-circuit protection
  • Suitable for isolation applications
  • Designed for low-voltage commercial and industrial distribution systems
  • Compatible with selected CHINT NM8N accessories and communication modules
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician or suitably qualified electrical contractor in accordance with applicable Australian wiring rules, manufacturer instructions and switchboard requirements. Confirm fault levels, protection settings, selectivity and required RCM conformity before energisation.
Applications
  • Main switchboard protection
  • Low-voltage commercial distribution boards
  • Industrial electrical distribution systems
  • Data centre and infrastructure switchboards
  • Four-wire three-phase systems requiring protected neutral switching
  • Overload and short-circuit protection for incoming or feeder circuits
Standards & Compliance
  • Applicable product standard: AS/NZS IEC 60947.2 for low-voltage circuit-breakers
  • CHINT NM8N product documentation specifies IEC 60947-1 and IEC 60947-2; Australian installation must also meet AS/NZS 3000 and applicable electrical safety requirements
Environmental Benefits
  • Electronic protection can support accurate system protection and reduce unnecessary equipment replacement after faults
  • Durable moulded-case construction and high mechanical endurance can extend service life and reduce replacement waste
  • CHINT provides RoHS documentation for the NM8N product series
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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