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MCCB 3P 25A 100kA Magnetic Only 125A Frame NM8N Chint

BRAND: CABAC
SKU: 271863
$1,250.70 List price: $1,667.50
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Chint NM8N 25A 3P MCCB features 100kA breaking capacity, magnetic-only trip unit for motor protection and a 125A frame. Ideal for switchboard mains protection.

Alternatively Known As: Magnetic-only MCCB, moulded case circuit breaker, motor protection MCCB, CHINT NM8N 125H M 25A 3P

Technical Specifications
  • Rated Current: 25 A
  • Frame Size: 125 A
  • Number of Poles: 3P
  • Trip Unit: Magnetic-only electromagnetic release
  • Breaking Capacity: 100 kA at 380/400/415 V AC
  • Rated Operational Voltage: 380/400/415 V AC; maximum 690 V AC
  • Rated Insulation Voltage: 1000 V AC
  • Rated Impulse Withstand Voltage: 8 kV
  • Frequency: 50/60 Hz
  • Utilisation Category: Category A
  • Electrical Endurance: 6,000 cycles
  • Mechanical Endurance: 15,000 cycles
  • Ingress Protection: IP40 when fitted with terminal covers; IP00 without covers
  • Terminal Torque: 6.0 Nm using M6 terminals
  • Product Reference: NM8N-125H M 25 3P
  • Ordering Code: 271863
  • Dimensions (H x L x W): 140mm x 78.5mm x 90mm
  • Weight: 1.19 kg
Key Features
  • Magnetic-only trip unit for short-circuit protection in motor circuits
  • Suitable for motor protection when used with a correctly selected overload relay
  • High 100 kA short-circuit breaking capacity at 380/400/415 V AC
  • Compact 125 A moulded-case frame with a 25 A magnetic release
  • Three-pole construction for three-phase electrical systems
  • Suitable for fixed, plug-in or DIN-rail mounting configurations where compatible accessories are used
  • Supports front or rear connection arrangements
  • Compatible with NM8N accessories including auxiliary contacts, alarm contacts, shunt release and undervoltage release
Professional Installation Requirements
  • Installation, selection and commissioning should be performed by a licensed electrician in accordance with the manufacturer's instructions, AS/NZS 3000 and the requirements of the switchboard assembly. A magnetic-only MCCB does not provide overload protection and should be coordinated with a suitable motor overload relay where required.
Applications
  • Short-circuit protection for three-phase motors
  • Motor control centres and industrial control panels
  • Switchboard mains and submains protection
  • Industrial power distribution boards
  • Commercial and industrial low-voltage installations
Standards & Compliance
  • Applicable product standard: AS/NZS 60947.2 for low-voltage circuit-breakers
  • CHINT product documentation specifies IEC/EN 60947-2; Australian certification and RCM requirements should be verified for the intended installation
  • Installation in a switchboard assembly should also account for AS/NZS 61439 requirements
Environmental Benefits
  • Metal components, including copper conductors and steel mechanisms, are recyclable at end of service life
  • Durable moulded-case construction and high mechanical endurance can reduce replacement frequency and material waste
  • Magnetic-only motor protection can support appropriately coordinated motor systems and reduce damage caused by short-circuit events
Warranty Information

CHINT's general warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels, subject to contract terms and exclusions for incorrect installation, misuse or unauthorised modification.

Available Now

Available through authorised CHINT distributors in Australia.

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