3VA9254-0JB12 SIEMENS

The 3VA9254-0JB12 is a Molded Case Circuit Breaker (MCCB) from Siemens' 3VA series. These MCCBs are designed to provide reliable protection for electrical systems against overloads and short circuits. This particular model features a breaking capacity class of Icu=55kA at 415V AC. It is a 4-pole breaker, meaning it protects four conductors, typically used in three-phase systems with a neutral. The breaker has a rated current of 250A, indicating the maximum current it can continuously carry without tripping. It utilizes a thermal-magnetic trip unit, which provides both overload and short-circuit protection. Thermal protection responds to sustained overcurrents, while magnetic protection reacts instantly to high short-circuit currents. The 3VA9254-0JB12 is suitable for a variety of applications, including industrial, commercial, and infrastructure projects. It ensures the safety and reliability of electrical distribution systems. Siemens 3VA MCCBs are known for their compact design and ease of installation.