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MCCB 4P 125A 150kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271255
$2,117.50 List price: $2,823.30
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Chint NM8N 125A 4P MCCB features 150kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Thermal-Magnetic Circuit Breaker, 4P Main Circuit Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Series: NM8N-250R
  • Number of Poles: 4P
  • Rated Current: 125A
  • Frame Size: 250A
  • Trip Unit: Thermal-magnetic
  • Ultimate Breaking Capacity Icu: 150kA at 380–415V AC
  • Service Breaking Capacity Ics: 150kA at 380–415V AC
  • Rated Insulation Voltage Ui: 1,000V
  • Rated Frequency: 50/60Hz
  • Utilisation Category: A
  • Mounting: Fixed installation
  • Terminal Connection: Copper conductor with cable lug
  • Protection Functions: Overload and short-circuit protection
  • Mechanical Life: Up to 15,000 operating cycles
  • Electrical Life: Up to 6,000 operating cycles
  • Ingress Protection: IP40
  • Dimensions (H x L x W): 140mm x 78.5mm x 120mm
  • Weight: 2.4 kg
Key Features
  • Four-pole configuration for three-phase systems with neutral switching
  • High 150kA short-circuit breaking capacity at 380–415V AC
  • Thermal-magnetic trip unit for overload and short-circuit protection
  • 250A frame accommodates rated currents from 125A to 250A
  • Suitable for switchboard mains and low-voltage power distribution protection
  • Can be installed with line or load connection orientation as specified by the manufacturer
  • Designed for fixed mounting in commercial and industrial switchboards
Professional Installation Requirements
  • Installation, selection and commissioning must be performed by a licensed electrician or suitably qualified electrical professional. Install in accordance with the manufacturer's instructions, AS/NZS 3000 and the switchboard manufacturer's requirements. Confirm fault levels, discrimination, cable capacity and enclosure assembly compliance before energisation.
Applications
  • Switchboard mains protection
  • Commercial and industrial low-voltage distribution boards
  • Three-phase power distribution systems with neutral conductors
  • Main incoming protection for electrical switchboards
  • Industrial plant and building services distribution
  • High prospective fault-current installations
Standards & Compliance
  • IEC 60947-2 product standard for circuit-breakers; verify the applicable AS/NZS adoption and local certification requirements before installation
  • AS/NZS 3000 for selection and installation of electrical equipment
  • AS/NZS 61439 for applicable low-voltage switchboard and controlgear assemblies
Environmental Benefits
  • Long service life can reduce replacement frequency and associated material waste
  • Copper and other metallic components can be recovered and recycled at end of service life
  • Thermal-magnetic protection helps prevent equipment damage and premature replacement following overload or short-circuit events
Warranty Information

CHINT warranty policy for other low-voltage apparatus indicates coverage against defects in materials and workmanship for 27 months from the date of manufacture, subject to authorised-channel purchase and applicable terms.

Available Now

Available through authorised CHINT distributors in Australia.

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