Schneider Electric Square D Masterpact NW20L1 2000A

The Square D Masterpact NW20L1 2000A is a high-performance air circuit breaker (ACB) engineered for reliable protection, control, and isolation of low-voltage power distribution systems in demanding industrial and commercial environments. As part of the globally trusted Masterpact NW series, this breaker combines advanced protection intelligence, robust mechanical durability, and flexible installation options to ensure maximum operational continuity and safety.

Designed with a 2000-ampere frame size, the NW20L1 delivers superior fault interruption capability with the L1 performance level optimized for high short-circuit withstand requirements. It supports rated operational voltages up to 690 V AC and complies with IEC standards, making it suitable for main incoming feeders, generator protection, large motor distribution, and critical infrastructure power systems.

The breaker can be configured with Schneider Electric Micrologic electronic trip units, providing precise adjustable protection functions such as long-time, short-time, instantaneous, and ground-fault protection (depending on model). These intelligent trip units also enable advanced metering, diagnostics, and communication capabilities for integration into modern energy management and automation systems.

Its modular construction supports drawout or fixed mounting, allowing safe maintenance and fast replacement without major downtime. High mechanical endurance and electrical durability ensure long service life even under frequent switching operations, while optional accessories such as motor operators, shunt trips, auxiliary contacts, and communication modules enhance operational flexibility.

Key engineering advantages include:

Rated current: 2000 A
Performance level: L1 high breaking capacity
Operational voltage up to 690 V AC
High short-circuit interruption capability (up to 65 kA class depending on configuration)
Electronic Micrologic protection options
Drawout design with safety interlocks and position indication
Compliance with IEC 60947-2 international standards
Durable construction for critical power applications

With its proven reliability, intelligent protection features, and adaptable design, the Square D Masterpact NW20L1 2000A is an ideal solution for facilities requiring dependable low-voltage power protection and operational efficiency

Square D Masterpact NW20L1 2000A 600 VAC Electrical Circuit Breaker, Micrologic trip unit (e.g. Micrologic 5.0/6.0/7.0), Line and load terminal connectors, Manual or motorized operating mechanism, Fixed or drawout cradle (if applicable), Racking mechanism (for drawout models), Control wiring harness, Mounting hardware, User manual and installation guide, Test or calibration certificate (if applicable), Safety and compliance documentation, Manufacturer warranty card, Original Square D packaging