Square D DSL416 1600A LSIG EO

The DSL416 1600A LSIG EO air circuit breaker is a heavy-duty low-voltage power protection solution designed for industrial switchgear and large commercial electrical distribution systems. Manufactured by Square D, this breaker is part of the DS/DSL series, known for its robust mechanical construction, high interrupting capability, and advanced solid-state protection technology suitable for mission-critical applications.

With a frame rating of 1600 A and operational voltage up to 600 V AC, the DSL416 provides reliable protection for three-phase electrical systems against overloads, short circuits, and ground faults. The integrated LSIG trip unit delivers comprehensive protection functions including long-time delay, short-time delay, instantaneous trip, and ground-fault protection, enabling precise coordination with downstream devices and improving overall system selectivity. These advanced protection features make the breaker ideal for main incoming feeders, generator protection, motor control centers, and critical infrastructure environments.

The electrically operated (EO) mechanism allows remote closing and opening, supporting automation and integration into modern control systems. The draw-out (DO) configuration provides enhanced safety and maintenance convenience, allowing the breaker to be racked in or out without disconnecting primary conductors, which minimizes downtime during servicing. Designed for switchgear installations, the unit supports multiple trip unit models and accessories depending on configuration requirements.

Built with a rugged DS-frame architecture, the Square D DSL416 offers strong mechanical endurance and dependable performance under demanding operating conditions. High interrupting ratings—especially when used with current-limiting accessories—provide additional protection for high-fault-level systems, making it suitable for heavy industrial plants, utilities, and infrastructure projects.

Overall, the Square D DSL416 1600A LSIG EO air circuit breaker delivers a combination of advanced protection functionality, electrical reliability, and maintenance flexibility, making it an excellent solution for modern low-voltage power distribution systems that require safe, efficient, and continuous operation.

Square D DSL416 1600A LSIG EO Air Circuit Breaker, Electrically operated (EO) mechanism, Line and load terminals, LSIG trip unit (Long-Time, Short-Time, Instantaneous, Ground Fault), Racking mechanism (if drawout), Control wiring harness, Mounting hardware, User manual and installation guide, Test and calibration certificate (if applicable), Safety and compliance documentation, Manufacturer warranty card, Original Square D packaging