Trade Discount 25%
MCCB 3P 125A Frame NM8N Chint
Chint NM8N MCCB 3P 125A frame features overload, short-circuit and undervoltage protection, and up to 690V AC rating. Ideal for distribution switchboards.
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Alternatively Known As: NM8N MCCB, 3P MCCB, 125A moulded case circuit breaker, thermal-magnetic circuit breaker
Technical Specifications
- Frame Size: 125A
- Rated Current: 125A at 40°C ambient
- Number of Poles: 3P
- Rated Operational Voltage: Up to 690V AC, 50/60Hz
- Rated Insulation Voltage: 1000V
- Rated Impulse Withstand Voltage: 8kV
- Protection: Overload, short-circuit and undervoltage protection
- Trip Unit: Thermal-magnetic distribution protection
- Utilisation Category: A
- Mounting: Fixed front connection; plug-in and DIN rail options available within the NM8N range
- Mechanical Life: Up to 15,000 operations
- Electrical Life: Up to 8,000 operations at 415V AC and rated current
- Operating Temperature: -40°C to +70°C
- Ingress Protection: IP40 when installed as specified
- Dimensions (H x L x W): 140mm x 78.5mm x 90mm
- Weight: 1.19 kg
Key Features
- Three-pole protection for three-phase distribution circuits
- 125A frame with rated current options up to 125A
- Provides overload and short-circuit protection
- Undervoltage protection available through the NM8N protection configuration
- Suitable for low-voltage distribution switchboards
- Supports fixed, plug-in and accessory-equipped installation configurations
- Suitable for isolation applications
- Compact moulded-case design with zero arcing distance
Professional Installation Requirements
- Installation, protection settings and connection should be performed by a licensed electrician in accordance with AS/NZS 3000, the manufacturer's instructions and applicable switchboard requirements. Confirm fault levels, conductor sizing, coordination and any required undervoltage release accessories before installation.
Applications
- Distribution switchboards
- Commercial and industrial electrical installations
- Three-phase feeder and sub-main protection
- Motor and equipment protection where the selected trip configuration is suitable
- Data centre and building services distribution systems
Standards & Compliance
- Applicable Australian/New Zealand standard: AS/NZS 60947.2 for low-voltage circuit-breakers
- Manufacturer-declared product standard: IEC/EN 60947-2
- Installation should comply with AS/NZS 3000 Wiring Rules
Environmental Benefits
- Long mechanical and electrical service life can reduce replacement frequency and associated waste
- Metallic conducting components such as copper and aluminium can be recovered through appropriate electrical equipment recycling streams
- Suitable for energy distribution systems designed for efficient electrical power management
Warranty Information
CHINT's general warranty policy for other low-voltage apparatus is 27 months from the date of manufacture when sold through authorised channels, subject to the sales contract, warranty terms and applicable Australian Consumer Law.
Available Now
Available through authorised CHINT distributors in Australia.
