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NW Frame Circuit Breaker

Schneider Electric's Masterpact NW is an intelligent frame circuit breaker (ACB) for medium and low voltage main power distribution. It is compatible with AC 50/60Hz systems up to 690V, with a rated current of 800-6300A, a breaking capacity of 42-150kA, 3P/4P configuration, fixed/removable installation, equipped with a Micrologic electronic trip unit, and supports three-stage/four-stage protection, power measurement and communication. It is suitable for main incoming lines, busbar connections and high-capacity load protection in industrial, commercial and public buildings, data centers, infrastructure and other applications.

PRODUCT DETAIL

Features:

Intelligent Protection: The Micrologic electronic trip unit provides three/four-stage protection, supporting selective coordination to reduce the scope of power outages; optional Vigi leakage protection adapts to personal and equipment safety requirements.

 

Breakdown and Current Limiting: High current limiting design quickly cuts off faults, reducing short-circuit energy surges and improving system safety.

 

Digitalization and Interconnectivity: Supports Modbus TCP and other communication methods, connecting to the EcoStruxure platform for remote monitoring, fault location, and energy efficiency analysis.

 

Installation and Maintenance: Hot-swappable pull-out installation facilitates maintenance; modular accessories (auxiliary/alarm contacts, shunt/undervoltage trip) can be added on-site to adapt to control requirements.

 

Energy Measurement: The trip unit has a built-in current transformer to measure parameters such as I/U/P/E/THD; the cabinet door display unit can display locally/remotely.

 

Typical Applications:

 

Industrial Sector: Factory main incoming lines, busbar connections, high-capacity motor circuits; high short-circuit breaking capacity adapts to industrial power grids.

 

Commercial and public buildings and data centers: Main power distribution circuits for buildings, air conditioning/water pumps, etc. Withdrawable design for easy maintenance; four-stage protection ensures power continuity.

 

Infrastructure: Critical loads such as rail transit, airports, and hospitals; intelligent monitoring and selective protection enhance power reliability.

 

Other scenarios: Backup power switching, photovoltaic/energy storage converters; adaptable to DC and special voltage systems (e.g., 690V AC).

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+86 13282738912

+86 13282738912