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MCCB 4P 180A 150kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271257
$2,117.50 List price: $2,823.30
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Chint NM8N 180A 4P MCCB features 150kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. For switchboard mains protection.

Alternatively Known As: CHINT NM8N 250R MCCB, 4P moulded case circuit breaker, 180A main circuit breaker, 150kA thermal-magnetic circuit breaker

Technical Specifications
  • Rated Current: 180 A
  • Frame Size: 250 A
  • Number of Poles: 4P with protected neutral
  • Trip Unit: Thermal-magnetic, TM type
  • Ultimate Breaking Capacity Icu: 150 kA at 380–415 V AC
  • Service Breaking Capacity Ics: 150 kA at 380–415 V AC
  • Rated Operational Voltage: Up to 690 V AC
  • Rated Insulation Voltage Ui: 1000 V
  • Rated Impulse Withstand Voltage Uimp: 8 kV
  • Thermal Trip Adjustment: 0.7–1.0 x In
  • Magnetic Trip Adjustment: 5–10 x In for 180–250 A ratings
  • Utilisation Category: A
  • Mounting: Fixed installation
  • Isolation: Suitable for isolation
  • Terminal Tightening Torque: 11 Nm for M8 terminals
  • Electrical Life: Up to 10,000 operations at 415 V AC and rated current
  • Mechanical Life: Up to 25,000 operations
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.5 kg
Key Features
  • 150kA short-circuit breaking capacity at 380–415V AC
  • Four-pole configuration with protected neutral
  • Thermal-magnetic overload and short-circuit protection
  • 250A frame with an 180A rated current
  • Adjustable thermal and magnetic trip settings
  • Suitable for main and distribution switchboard protection
  • Designed for low-voltage commercial, industrial and building installations
  • Suitable for vertical or horizontal installation with top or bottom line entry
Professional Installation Requirements
  • Installation, selection and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, applicable switchboard requirements and CHINT installation instructions. Prospective fault current, discrimination, conductor sizing and enclosure suitability must be verified before installation.
Applications
  • Switchboard mains protection
  • Commercial and industrial electrical distribution
  • Main incomer and sub-main protection
  • Building services and plant distribution boards
  • Data centre and infrastructure power distribution
  • Low-voltage circuits requiring high short-circuit withstand capability
Standards & Compliance
  • IEC 60947-1 and IEC 60947-2 product standards apply to the NM8N MCCB range
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand standard for low-voltage circuit-breakers
  • Installation and switchboard integration should comply with AS/NZS 3000 and applicable switchboard standards
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated waste
  • Copper, aluminium and steel components can be recovered for recycling at end of service life
  • Thermal-magnetic protection helps limit damage to conductors and connected equipment during overload and short-circuit events
  • Durable moulded-case construction supports extended service in commercial and industrial switchboards
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised sales channels, subject to the applicable customer contract and warranty conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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