Circuit breaker 3VA1 IEC Frame 630 breaking capacity class M Icu=55kA @ 415V 3-pole, system protection TM240, ATAM, In=630A overload protection Ir=440A...630A short-circuit protection Ii=4...8 x In screw flat connection SENTRON 3VA1 molded case circuit breaker for effective system protection through safe shutdown in the event of overload and short circuit. The 3VA molded case circuit breakers set standards in flexibility and modular variety with minimal space requirements. The 3VA1 molded case circuit breakers are available in 1-, 2-, 3- and 4-pole versions with various rated continuous currents for fixed installation as well as plug-in/withdrawable installation. The modular and easy-to-install accessories with a wide range of functions are consistent and standardized for all sizes and series of the 3VA molded case circuit breakers. SENTRON 3VA molded case circuit breakers - one system. For all applications.