High current air circuit breakers up to 6300 A in two frame sizes
Masterpact NW is a comprehensive range of air circuit breakers designed to protect electrical systems from damage caused by overloads, short circuits and equipment ground faults. Embedding Micrologic control units, it contributes to safety and energy efficiency. The range covers ratings from 800 to 6300 A in two different sizes.
The worldwide benchmark for high current circuit breakers
Masterpact NW circuit breakers are equipped with Micrologic control units that offer built-in power and energy metering in addition to basic or advanced protection functions. Two sizes are sufficient to cover applications from 800 to 6300 A, with breaking capacity from 42 to 150 kA.
The range comes with a wide choice of standardized accessories. The universal design of the Masterpact circuit breaker line allows most accessories to be used across the entire line. It enables standardization of electrical switchboards by providing peace of mind in terms of choice, installation, and operation.
Rated current: 800 to 6300 A
Breaking capacity: 42 to 150 kA at 220/415 V AC
Voltage rating: up to 1150 V AC
2 physical sizes: 800 to 4000 A, and 4000 A to 6300 A
Draw out and fixed mount
3-pole and 4-pole construction
Electronic Micrologic control units, integrating current, voltage, power and energy metering enabling energy management, earth leakage protection, and other advanced protection or network analysis functions
Switch disconnectors version available
Optimized range of field-installable auxiliaries and accessories
Different offers complying with different international standards: IEC 60947, UL489, ANSI/UL1066
CCC, EAC and other local certifications
Compliance with specifications of marine classification companies: Bureau Veritas, Lloyd's Register of Shipping, Det Norske Veritas, etc.
Masterpact NW circuit breakers contribute to reliability and continuity of service of your electrical installation thanks to:
Increased uptime with improved coordination with Micrologic electronic trip unit adjustability
Complete selectivity and coordination
High resistance to environmental stresses
Integrated monitoring for energy efficiency
Improved uptime with complete monitoring solution in Smart Panels
Seamless integration enabling users access to circuit breakers data in real time with a mobile device or a PC
Local and remote communication with trip cause (earth leakage, overload, short-circuit) and alarms (earth leakage, overload) allowing proactive operational and energy efficiency
Advanced Micrologic control unit can assist in providing corrective, preventive and predictive maintenance, and energy management to identify potential savings
Standardized range of auxiliaries and accessories
Wide range of online and offline software tools that improve productivity at all stages of your project (Ecoreal, Ecodial, MyPact, Ecoreach)
Masterpact NW is a part of EcoStruxure™ Power – Schneider Electric’s open, interoperable, IoT-enabled system architecture.
General applications in all types of low voltage electrical installations
Suitable in most applications for protection, measurement, monitoring and quality of energy, including generator protection and motor protection, in standard applications and specific applications demanding high performance, including:
Industry: mining operations, minerals, metals, and cement production, water & wastewater industry, automotive, food and beverage, etc.
Oil & Gas extraction and processing, Chemicals industries
Data centers infrastructure
Healthcare infrastructure, hospitals
Marine and offshore industry
Infrastructures: airports, railways, subways, tunnels, power plants, etc.
Buildings: commercial buildings, hotels, offices
Wind turbines, solar, gensets
Photovoltaic and DC networks (Masterpact NW DC & DC PV)