The Siemens circuit breaker 3VA1 IEC frame 400 breaking capacity class S, line protection TM240, ATAM, molded-case circuit breaker 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
3. Depending on the size: 1-pole to 4-pole versions.
4. Fixed and plug-in installation possible.
5. The series has a thermo-magnetic trip unit.
6. Suitable for AC and DC applications.
7. Modular and easy-to-fit internal accessories with wide range of functions.