Circuit breaker 3VA2 IEC frame 250 switching capacity class M Icu=55kA @ 415V 4-pole, system protection ETU350, LSI, In=250A overload protection Ir=100A...250A short-circuit protection Isd=1.5...10 x Ir, Ii=10 x In N-conductor protection adjustable (OFF, 50%, 100%) screw flat connection. SENTRON 3VA2 compact circuit breakers for 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 installations as well as plug-in 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.