circuit breaker 3VA1 IEC frame 630 breaking capacity class M Icu=55kA @ 415V 4-pole, line protection TM240, ATAM, In=500A overload protection Ir=350A…500A short-circuit protection Ii=5…10 x In N conductor unprotected nut keeper kit 3VA1 molded-case circuit breaker for starter 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 starter circuit breaker to protect electrical motors from short circuits. 3. Available as 3-pole version. 4. Depending on the size: Rated operating current of 32 A to 200 A. 5. Breaking capacity of 55 kA to 70 kA at 415 V. 6. Fixed and plug-in installation possible. 7. The series has a thermo-magnetic trip unit 8. Modular and easy-to-fit internal accessories with wide range of functions. 9. Integrated accessories platform for all 3VA molded-case circuit breakers. 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.