Trade Discount 25%
MCCB 4P 50A 150kA Thermal Magnetic 125A Frame NM8N Chint
Chint NM8N 50A 4P MCCB features 150kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 125A frame. Ideal for switchboard mains protection.
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Alternatively Known As: Moulded Case Circuit Breaker, MCCB, 4-Pole Circuit Breaker, Thermal-Magnetic Circuit Breaker
Technical Specifications
- Product Series: NM8N-125R
- Rated Current: 50A
- Frame Size: 125A
- Poles: 4P
- Trip Unit: Thermal-magnetic
- Breaking Capacity: 150kA at AC 380/400/415V
- Rated Operational Voltage: Up to 690V AC
- Rated Insulation Voltage: 1000V
- Rated Frequency: 50/60Hz
- Rated Impulse Withstand Voltage: 8kV
- Neutral Protection: Protected neutral pole
- Isolation Function: Suitable for isolation
- Connection Type: Fixed front connection
- Selectivity Category: Category A
- Mechanical Life: Up to 15,000 operating cycles
- Electrical Life: Up to 8,000 operating cycles at AC 415V
- Dimensions (H x L x W): 140mm x 78.5mm x 120mm
- Weight: 1.5 kg
Key Features
- High 150kA short-circuit breaking capacity
- Thermal-magnetic overload and short-circuit protection
- Four-pole configuration for three-phase and neutral systems
- 125A frame with a 50A current rating
- Protected neutral arrangement
- Suitable for switchboard mains and feeder protection
- Suitable for isolation
- Supports installation with top or bottom line entry
- Designed for residential, commercial and industrial power distribution
Professional Installation Requirements
- Installation and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, applicable switchboard requirements and the manufacturer's instructions. Confirm fault levels, discrimination, conductor sizing and required Australian certification before installation.
Applications
- Switchboard mains protection
- Three-phase commercial and industrial distribution boards
- Main and sub-main feeder protection
- Low-voltage power distribution systems
- Industrial control panels and electrical equipment protection
- Commercial building and data-centre power distribution
Standards & Compliance
- AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand product standard for low-voltage circuit-breakers
- Electrical installation and switchboard application should be assessed against AS/NZS 3000 and AS/NZS 61439
- Verify Australian market certification and RCM requirements before installation
Environmental Benefits
- Metal components and copper terminals can be recovered through established electrical equipment recycling processes
- Thermal-magnetic protection helps limit equipment damage and extend the service life of downstream electrical assets
- Durable moulded-case construction can reduce replacement frequency and associated material waste
Warranty Information
CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels, subject to contract terms and exclusions including improper installation, misuse and unauthorised modification.
Available Now
Available through authorised CHINT distributors in Australia.
