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MCCB 3P 25A 70kA Magnetic Only 125A Frame NM8N Chint

BRAND: CABAC
SKU: 271853
$1,111.70 List price: $1,482.30
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Chint NM8N 25A 3P MCCB features 70kA breaking capacity, magnetic-only trip unit for motor protection and a 125A frame. Ideal for switchboard mains protection.

Alternatively Known As: CHINT NM8N-125Q M 25 3P Motor Protection MCCB, Magnetic Circuit Breaker, Moulded Case Circuit Breaker

Technical Specifications
  • Series: NM8N
  • Configuration: 3-pole MCCB
  • Rated current: 25 A
  • Frame size: 125 A
  • Release type: Magnetic-only, type M
  • Breaking capacity: 70 kA at 400 V AC
  • Rated operational voltage: Up to 690 V AC
  • Instantaneous magnetic trip: 300 A, equivalent to 12 x In
  • Impulse withstand voltage: 8 kV
  • Mechanical endurance: 15,000 operating cycles
  • Electrical endurance: 8,000 operating cycles
  • Ambient operating temperature: -40°C to +70°C
  • Connection: Fixed front connection
  • Dimensions (H x L x W): 140mm x 78.5mm x 90mm
  • Weight: 1.05 kg
Key Features
  • Magnetic-only trip unit allows motor starting current without thermal overload tripping
  • Provides high-level short-circuit protection for motor circuits
  • 70kA ultimate short-circuit breaking capacity at 400V AC
  • Compact 125A frame with 25A rated current
  • Three-pole configuration for three-phase systems
  • Suitable for fixed mounting in switchboards and distribution assemblies
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with applicable Australian electrical regulations, manufacturer instructions and the requirements of the switchboard assembly. A separate thermal overload relay is required where motor overload protection is needed.
Applications
  • Three-phase motor short-circuit protection
  • Motor control and protection assemblies using a contactor and thermal overload relay
  • Industrial switchboards
  • Commercial and industrial distribution boards
  • Switchboard mains and submains protection where the specified magnetic-only characteristic is suitable
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 – applicable standard for low-voltage circuit-breakers and MCCBs; verify product approval and RCM requirements for the installation jurisdiction.
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and product waste
  • Metallic conductive components and enclosure materials are recyclable at end of service life
  • Magnetic-only protection supports coordinated motor-control systems and avoids unnecessary thermal tripping during motor starting
Warranty Information

CHINT warranty policy generally covers other low-voltage apparatus for 27 months from the date of manufacture when sold through authorised channels; contract and regional warranty terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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