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MCCB 4P 125A 100kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271231
$1,786.60 List price: $2,382.20
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30 Days Return Electricians Unlock Trade Access
Chint NM8N 125A 4P MCCB features 100kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N 250H thermal magnetic moulded case circuit breaker, 125A 4-pole MCCB, 100kA MCCB

Technical Specifications
  • Frame Size: 250 A
  • Rated Current: 125 A
  • Poles: 4-pole with protected neutral, 4C configuration
  • Release Type: Thermal-magnetic trip unit for distribution protection
  • Short-Circuit Breaking Capacity: 100 kA at 380/400/415 V AC
  • Rated Operational Voltage: Up to 690 V AC, 50/60 Hz
  • Rated Insulation Voltage: 1,000 V AC
  • Rated Impulse Withstand Voltage: 8 kV
  • Thermal Trip Adjustment: 0.7–1.0 times rated current
  • Magnetic Trip Range: 7–12 times rated current for 125–160 A distribution protection
  • Utilisation Category: A
  • Isolation Function: Suitable for isolation
  • Mechanical Life: Up to 25,000 operating cycles
  • Electrical Life: Up to 10,000 operating cycles at 415 V AC and rated current
  • Product Standard: IEC/EN 60947-2
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.5 kg
Key Features
  • 100 kA short-circuit breaking capacity at common low-voltage operating voltages
  • Thermal-magnetic protection against overload and short circuit
  • Protected neutral pole for four-pole distribution systems
  • 250 A frame with a 125 A rated trip unit
  • Suitable for switchboard incomer and mains protection applications
  • Adjustable thermal and magnetic trip characteristics
  • Zero arcing distance design
  • Suitable for AC distribution systems up to 690 V
Professional Installation Requirements
  • Installation, adjustment and testing must be carried out by a licensed electrician in accordance with AS/NZS 3000, the switchboard assembly requirements and the manufacturer’s instructions. Confirm prospective fault current, discrimination, cable capacity and enclosure compatibility before commissioning.
Applications
  • Switchboard mains and incomer protection
  • Commercial and industrial distribution boards
  • Three-phase four-wire electrical distribution systems
  • Building services and plant-room power distribution
  • Protection of feeders, cables and electrical equipment
Standards & Compliance
  • AS/NZS 60947.2 is the applicable Australian/New Zealand circuit-breaker standard for MCCBs of this type
  • Electrical installation and connection should comply with AS/NZS 3000
  • The completed switchboard assembly may also require assessment to AS/NZS 61439
Environmental Benefits
  • Durable moulded-case construction can extend service life and reduce replacement waste
  • Metal conductive components can be recovered through appropriate electrical equipment recycling streams
  • Resettable circuit protection avoids routine replacement of single-use fuses
  • Supports safe, reliable electrical distribution and reduced equipment damage from overloads and short circuits
Warranty Information

CHINT warranty policy states 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels; contract terms and Australian distributor conditions may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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