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MCCB 4P 180A 70kA Thermal Magnetic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271209
$1,522.00 List price: $2,029.30
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Chint NM8N 180A 4P MCCB features 70kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, MCCB, Thermal-Magnetic Circuit Breaker, Main Switchboard Breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Series: NM8N-250Q
  • Number of Poles: 4P
  • Rated Current: 180A
  • Frame Size: 250A
  • Trip Unit: Thermal-magnetic
  • Breaking Capacity: 70kA at AC 380/400/415V
  • Rated Operational Voltage: Up to 690V AC, 50/60Hz
  • Rated Insulation Voltage: 1000V AC
  • Rated Impulse Withstand Voltage: 8kV
  • Utilisation Category: A
  • Neutral Protection: Protected neutral pole
  • Connection Type: Fixed front connection
  • Mechanical Endurance: Up to 15,000 operating cycles
  • Electrical Endurance: Up to 6,000 operating cycles at rated current and AC 415V
  • Isolation Function: Suitable for isolation
  • Dimensions (H x L x W): 157mm x 88.7mm x 140mm
  • Weight: 2.5 kg
Key Features
  • Four-pole protection for three-phase systems with neutral
  • 180A thermal-magnetic overload and short-circuit protection
  • 70kA ultimate short-circuit breaking capacity at up to 415V AC
  • 250A frame accommodates a broad range of NM8N current ratings
  • Suitable for switchboard incomer and mains protection applications
  • Can be installed vertically or horizontally with top or bottom line entry
  • Compatible with optional CHINT accessories including auxiliary contacts, shunt releases and undervoltage releases
Professional Installation Requirements
  • Installation, selection and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, the manufacturer's instructions and the switchboard assembly requirements. Verify prospective fault current, discrimination, cable capacity, neutral arrangement and enclosure suitability before installation.
Applications
  • Switchboard mains protection
  • Main distribution boards
  • Commercial and industrial electrical distribution
  • Generator and transformer secondary protection
  • Three-phase circuits requiring protected neutral switching and overcurrent protection
Standards & Compliance
  • AS/NZS IEC 60947.2 for low-voltage circuit-breakers
  • AS/NZS 3000 for electrical installation and wiring requirements
  • AS/NZS 61439 where installed as part of a low-voltage switchgear and controlgear assembly
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and equipment waste
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
  • Provides reliable fault protection that can help limit damage to downstream electrical equipment
Warranty Information

CHINT general warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised sales channels. Contractual or Australian distributor warranty terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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