Circuit breaker 3VA2 IEC frame 250 switching capacity class L Icu=150kA @ 415V 3-pole, system protection ETU320, LI, In=250A overload protection Ir=100A...250A short-circuit protection Ii=1.5...10 x In screw flat connection. SENTRON 3VA2 compact circuit breakers provide effective system protection through safe disconnection in overload and short-circuit situations. The 3VA compact circuit breakers set standards in flexibility and modular variety while requiring minimal space. The 3VA2 compact circuit breakers are available in 3- and 4-pole versions with various rated currents for installation in fixed mounting 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 3VA compact circuit breakers - One system. For all applications.