SCHNAP Logo

Making Trade Life Easy!
Trade Discount 25%

MCCB 3P 250A 50kA Basic Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271335
$1,428.60 List price: $1,904.80
+ −
30 Days Return Electricians Unlock Trade Access
Chint NM8N 250A 3P MCCB features 50kA breaking capacity, basic electronic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Electronic MCCB, NM8N-250S EN 250 3P

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Series: NM8N
  • Frame Size: 250A
  • Rated Current: 250A
  • Number of Poles: 3P
  • Trip Unit: EN basic electronic
  • Breaking Capacity: 50kA at 400V AC
  • Rated Operational Voltage: Up to 690V AC
  • Rated Insulation Voltage: 1,000V
  • Rated Frequency: 50/60Hz
  • Overload Protection Adjustment: 0.4–1.0 x In
  • Instantaneous Short-Circuit Protection: Adjustable, up to 12 x In
  • Mechanical Durability: Up to 15,000 operating cycles
  • Electrical Durability: Up to 6,000 cycles at 400V AC
  • Ingress Protection: IP40
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 2.344 kg
Key Features
  • 50kA short-circuit breaking capacity for high-fault-level distribution systems
  • Basic electronic trip unit with overload, short-time short-circuit and instantaneous protection
  • 250A frame with a 250A rated current
  • Three-pole configuration for three-phase power distribution
  • Suitable for switchboard mains, sub-mains and commercial or industrial distribution boards
  • Adjustable protection settings support coordination and selectivity
  • Compatible with optional shunt releases, undervoltage releases, motor operators, auxiliary contacts and terminal accessories
  • Supports front, rear and plug-in connection arrangements subject to the selected accessories
Professional Installation Requirements
  • Installation, protection-setting adjustment and commissioning must be carried out by a licensed electrician in accordance with the manufacturer's instructions, applicable electrical design requirements and AS/NZS 3000. Confirm fault levels, discrimination, conductor sizing, enclosure clearances and Australian approval requirements before energisation.
Applications
  • Switchboard mains protection
  • Sub-mains protection
  • Commercial building distribution boards
  • Industrial power distribution systems
  • Motor and equipment feeder protection where the selected protection settings are suitable
  • Main distribution and secondary distribution assemblies
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 is the applicable circuit-breaker standard for low-voltage MCCBs; verify the specific product certification and RCM requirements before installation in Australia
  • AS/NZS 3000 applies to the design, selection, installation and verification of the associated electrical installation
Environmental Benefits
  • Durable moulded-case construction can support long service life and reduce replacement waste
  • Metal terminals and internal conductive components are recyclable through appropriate electrical equipment recycling streams
  • Electronic protection can help limit damage to downstream equipment during overload and short-circuit events
  • CHINT provides RoHS documentation for the NM8N product family
Warranty Information

Up to 24 months subject to the applicable CHINT warranty terms, proof of purchase, authorised distribution and exclusions for incorrect installation, misuse, unauthorised modification or operation outside the specified ratings.

Available Now

Available through authorised CHINT distributors in Australia.

Related Products