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MCCB 3P 125A 150kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271243
$1,389.60 List price: $1,852.80
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Chint NM8N 125A 3P MCCB features 150kA breaking capacity, thermal-magnetic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N-250R 125A MCCB, Moulded Case Circuit Breaker, 3P Thermal-Magnetic Circuit Breaker

Technical Specifications
  • Rated Current: 125 A
  • Number of Poles: 3 pole
  • Frame Size: 250 A
  • Trip Unit: Thermal-magnetic
  • Rated Ultimate Breaking Capacity: 150 kA at 380–415 V AC
  • Rated Service Breaking Capacity: 150 kA at 380–415 V AC
  • Rated Insulation Voltage: 1000 V AC
  • Rated Impulse Withstand Voltage: 8 kV
  • Rated Frequency: 50/60 Hz
  • Utilisation Category: A
  • Short-Time Withstand Current: 2 kA for 1 second
  • Mounting: Fixed installation
  • Isolation Function: Suitable for isolation
  • Terminal Connection: Copper conductors with cable lugs
  • Mechanical Life: Up to 15,000 operating cycles
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 1.85 kg
Key Features
  • High 150 kA short-circuit breaking capacity at 380–415 V AC
  • Thermal-magnetic protection for overload and short-circuit faults
  • Compact 250 A frame with a 125 A rated current
  • Three-pole configuration for three-phase distribution systems
  • Suitable for switchboard mains, sub-mains and industrial distribution protection
  • Can be installed with line entry from the top or bottom
  • Suitable for vertical or horizontal mounting
  • Optional auxiliary, alarm, shunt-trip and undervoltage accessories available for the NM8N platform
Professional Installation Requirements
  • Installation, testing and commissioning must be carried out by a licensed electrician in accordance with the manufacturer's instructions, AS/NZS 3000 and applicable switchboard requirements. Verify fault levels, discrimination, cable sizing and terminal torque before energisation.
Applications
  • Switchboard main incoming protection
  • Sub-main circuit protection
  • Industrial and commercial low-voltage distribution boards
  • Three-phase motor and equipment feeder protection
  • High fault-level commercial and industrial installations
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 for low-voltage circuit-breakers
  • AS/NZS 3000:2018 for electrical installation and wiring requirements
Environmental Benefits
  • Long service life can reduce replacement frequency and associated material waste
  • Copper conductors and metal components can be recovered for recycling at end of service life
  • Thermal-magnetic operation provides reliable protection that can help limit equipment damage during overload and short-circuit events
  • RoHS documentation is available for the NM8N product family
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus supplied 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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