circuit breaker 3VA2 IEC frame 400 breaking capacity class M Icu=55kA @ 415V 3-pole, line protection ETU320, LI, In=400A overload protection Ir=160A…400A short-circuit protection Ii=1.5…10 x In nut keeper kit 3VA2 molded-case circuit breaker with 8-series ETU for system protection. As an important element of SENTRON protective components for industrial and infrastructure applications, the 3VA molded-case circuit breakers from Siemens provide effective plant, starter and motor protection thanks to reliable shutdown in the event of an overload or short circuit. The 3VA molded-case circuit breakers set new standards in flexibility and the variety of modular accessories available. Standardized accessories for several sizes across all series of the 3VA1 and 3VA2 molded-case circuit breakers. Key features of this version of the 3VA molded-case circuit breaker: 1. Compact design. 2. Available as version for plant protection and generator protection. 3. Available as 3-pole and 4-pole version. 4. Four breaking capacity classes from 55 kA to 150 kA at 415 V. 5. Depending on the size: Rated current 25 A. 630 A. 6. Can be installed fixed, in plug-in design or as withdrawable version. 7. The series has a solid-state overcurrent trip unit. 8. Integrated display for measured values. 9. Integrated measuring function and optional communication connection via Modbus TCP, Modbus RTU, PROFINET and PROFIBUS. 10. Modular and easy-to-fit internal accessories with wide range of functions. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry.