Schneider Masterpact NW MW Molded Case Circuit Breakers High
Current Air Circuit Breakers
Features
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.
Specifications:
- 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.
Application
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
Special applications
- Photovoltaic and DC networks (Masterpact NW DC & DC PV)
- Corrosive industrial environments (special versions)
- Mining industry (special 1000V versions)
- High short-circuit current limiting (ultra-rapid Masterpact UR)
- Navy (Masterpact NW & NT Navy)
- UL 489 (Masterpact NW & NT UL 489 listed)
- Source-changeover systems (Transferpact): service sector (hospital
operating rooms, computer rooms, etc.), industry (assembly lines,
ship engine rooms, etc.), infrastructures (runway, railway, etc.)
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