The ABB MB 42 LSG 4200A EO MO DO is a high-capacity air circuit breaker designed for heavy-duty low- to medium-voltage power distribution applications in industrial, commercial, and utility environments. With a rated current of 4200 amperes, this breaker delivers exceptional protection, reliable switching performance, and efficient operation for demanding electrical systems.

Engineered with advanced technology from ABB, the MB 42 LSG provides precise protection against overload, short-circuit, and ground-fault conditions, ensuring the safety of equipment and minimizing operational downtime. Its robust mechanical and electrical construction supports stable performance under high load conditions, while the durable design enhances service life and reliability.

The breaker features EO (electrically operated), MO (motor operated), and DO (draw-out) configurations, offering flexible installation, remote operation capability, and convenient maintenance. Its modular design allows seamless integration into existing switchgear systems, while the high-speed switching mechanism ensures rapid and safe interruption of fault currents. Ideal for applications requiring high current capacity, advanced protection, and dependable performance, the ABB MB 42 LSG 4200A EO MO DO combines strength, precision, and operational efficiency for superior power distribution performance.

ABB MB 42 LSG 4200A EO MO DO Electrical Circuit Breaker, Electrically operated (EO) and manually operated (MO) mechanisms, Drawout (DO) cradle or racking system, Line and load terminals, LSG trip unit (Long-Time, Short-Time, Ground Fault), Control wiring harness, Mounting hardware, User manual and installation instructions, Calibration or test certificate (if applicable), Safety and compliance documentation, Manufacturer warranty card, Original ABB packaging