Load disconnect switch 3VA1 IEC Frame 250 4-pole SD100, In=250A without overload protection and short-circuit protection, screw flat connection, SENTRON 3VA1 compact circuit breaker. As a load disconnect switch variant according to IEC 60947-3, it serves to safely isolate individual parts of the system from the network. The 3VA compact circuit breakers set standards in flexibility and modular variety while requiring minimal space. The 3VA1 load disconnect switches are available in 3-pole and 4-pole versions with various rated currents for fixed installation as well as plug-in/insert technology. The modular and easy-to-install accessories with a wide range of functions are consistent and uniform across all sizes and series of the 3VA compact circuit breakers. SENTRON compact circuit breakers 3VA - a system for all applications.