circuit breaker 3VA2 IEC Frame 100 breaking capacity class M Icu=55 kA @ 415 V 3-pole, line protection ETU350, LSI, In=63 A overload protection Ir=25 A...63 A short-circuit protection Isd=1.5...10 x Ir, Ii=12 x In nut keeper kit Molded case circuit breaker SENTRON 3VA2 for effective line protection with reliable disconnection in the event of overload and short-circuitThe 3VA molded case circuit breakers set new standards in flexibility and the variety of modular accessories available with a small space requirement.The 3VA2 molded case circuit breakers are available in 3- and 4-pole versions with different rated uninterrupted currents for installation in fixed-mounted and plug-in/withdrawable versions.The modular and easy-to-install accessories with a wide range of functions are consistent and uniform for all sizes and series of 3VA molded case circuit breakers.SENTRON 3VA molded case circuit breakers - One system. For all applications.