Trade Discount 25%
MCCB 4P 125A 36kA Thermal Magnetic 250A Frame NM8N Chint
Chint NM8N 125A 4P MCCB features 36kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 250A frame. Ideal for switchboard mains protection.
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Alternatively Known As: CHINT NM8N 125A MCCB, 4-Pole Moulded Case Circuit Breaker, Thermal-Magnetic Circuit Breaker, Main Switchboard MCCB
Technical Specifications
- Product Type: Moulded case circuit breaker
- Frame Size: 250A
- Rated Current: 125A
- Number of Poles: 4P
- Trip Unit: Thermal-magnetic
- Breaking Capacity: 36kA at applicable AC voltage
- Rated Insulation Voltage Ui: 1000V
- Rated Impulse Withstand Voltage Uimp: 8kV
- Rated Operational Voltage: Up to 690V AC
- Frequency: 50/60Hz
- Neutral Protection: Protected neutral pole
- Utilisation Category: A
- Installation: Fixed, vertical or horizontal mounting
- Connection: Front or rear connection options
- Dimensions (H x L x W): 157mm x 88.7mm x 140mm
- Weight: 2.5 kg
Key Features
- 125A rated current in a 250A frame
- Four-pole protection with protected neutral
- 36kA short-circuit breaking capacity
- Adjustable thermal overload and instantaneous magnetic protection
- Suitable for overload, short-circuit and isolation functions
- Designed for low-voltage commercial, industrial and switchboard applications
- Compatible with CHINT NM8N accessories including auxiliary contacts, alarm contacts, shunt releases and undervoltage releases
Professional Installation Requirements
- Installation, testing and commissioning must be performed by a licensed electrical contractor in accordance with AS/NZS 3000, the manufacturer's instructions and the switchboard manufacturer's requirements.
Applications
- Main switchboard protection
- Commercial and industrial power distribution
- Low-voltage distribution boards
- Building services and plant rooms
- Protection of feeders and electrical equipment
- Industrial control panels and power distribution systems
Standards & Compliance
- Applicable product standard: AS/NZS IEC 60947.2 for low-voltage circuit-breakers
- Installation should comply with AS/NZS 3000 Wiring Rules
- Verify local conformity marking and certification requirements before installation in Australia
Environmental Benefits
- RoHS documentation is available for the NM8N series, supporting restriction of hazardous substances
- Reusable moulded-case construction can extend service life and reduce replacement waste
- Suitable for energy-efficient electrical distribution systems when correctly selected and coordinated
- Metallic and thermoplastic components can be separated for responsible end-of-life recycling
Warranty Information
CHINT warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture for products sold through authorised sales channels, subject to contract terms and exclusions for improper installation, misuse, unauthorised repair or modification.
Available Now
Available through authorised CHINT distributors in Australia.
