Siemens SENTRON 5SY4 MCB, 3P+N, 40A Curve D, 400V AC, 72V DC, 5 kA Breaking Capacity

The miniature circuit breaker provides voltage of 400 V with 3+N-pole configuration. In the event of an overload or short-circuit, circuit breakers safely cut off the connected circuit and reliably protect electrical installations and equipment from damage. The Siemens miniature circuit breaker is the fuse for short-circuit protection. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices. It is a simple distribution systems as well as switches and sockets for safe and efficient electrical infrastructure in buildings and industry.

Current switching capacity 10kA
AC operating current 40 A