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MCCB 4P 25A 150kA Thermal Magnetic 125A Frame NM8N Chint

BRAND: CABAC
SKU: 271723
$1,455.80 List price: $1,941.00
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Chint NM8N 25A 4P MCCB features 150kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 125A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, 4-Pole MCCB, Thermal-Magnetic Circuit Breaker, High-Breaking-Capacity MCCB

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Series: NM8N-125R
  • Number of Poles: 4P
  • Rated Current: 25 A
  • Frame Size: 125 A
  • Trip Unit: Thermal-magnetic
  • Ultimate Breaking Capacity Icu: 150 kA at 380/400/415 Vac
  • Service Breaking Capacity Ics: 150 kA at 380/400/415 Vac
  • Rated Operational Voltage: 380/415 Vac
  • Maximum Operational Voltage: 690 Vac
  • Rated Insulation Voltage Ui: 1,000 Vac
  • Rated Impulse Withstand Voltage Uimp: 8 kV
  • Utilisation Category: A
  • Current Adjustment Range: 0.7–1.0 x In
  • Ingress Protection: IP00, or IP40 with terminal covers
  • Power Dissipation: 13.2 W
  • Mechanical Life: Up to 25,000 operating cycles
  • Mounting: Fixed, plug-in or DIN-rail compatible configurations
  • Connection: Front or rear connection options
  • Dimensions (H x L x W): 140mm x 78.5mm x 120mm
  • Weight: 1.55 kg
Key Features
  • Four-pole protection for three-phase and neutral systems
  • 25A thermal-magnetic overload and short-circuit protection
  • 125A frame accommodates a broad range of rated current options
  • 150kA ultimate and service breaking capacity at 380–415 Vac
  • Neutral pole included for four-pole distribution applications
  • Suitable for industrial and commercial low-voltage distribution
  • Can be installed vertically or horizontally
  • Top or bottom line entry options
  • Compatible with a range of auxiliary and operating accessories
Professional Installation Requirements
  • Installation, selection and commissioning must be performed by a licensed electrician in accordance with the manufacturer's instructions, applicable switchboard requirements and AS/NZS 3000. Confirm prospective fault current, discrimination, cable ratings and neutral-pole configuration before installation.
Applications
  • Switchboard mains protection
  • Industrial low-voltage power distribution
  • Commercial electrical distribution boards
  • Power centres and tertiary switchboards
  • Motor control and general circuit protection
  • Three-phase systems requiring switched and protected neutral conductors
Standards & Compliance
  • Applicable standard: AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • Manufacturer specification references IEC/EN 60947-2; verify Australian certification and installation suitability before use
Environmental Benefits
  • Long mechanical service life can reduce replacement frequency and associated material waste
  • Steel, copper and aluminium components are potentially recyclable at end of service life
  • Thermal-magnetic protection helps limit damage to cables and switchboard equipment during overload and short-circuit events
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 conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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