3VA5222-5ED31-1AA0 SIEMENS

The 3VA5222-5ED31-1AA0 is a robust 3-pole circuit breaker from Siemens, designed for reliable line protection in various electrical systems. This UL 489 certified breaker falls under frame size 250 and boasts a breaking capacity class M, capable of interrupting fault currents up to 35kA at 480V. Equipped with a TM210 trip unit, it offers fixed thermal overload protection set at Ir=225A, safeguarding conductors from sustained overcurrents. The fixed magnetic short-circuit protection, Ii=10 x In, provides instantaneous tripping in the event of high-magnitude short circuits. This model is specifically designed and approved for SB (naval) applications, ensuring compliance with stringent maritime standards. It is rated for operation at 50 degrees Celsius without derating, ensuring stable performance in demanding environments. The breaker is supplied without connection terminals, allowing for flexible adaptation to different wiring configurations. This feature-rich circuit breaker provides comprehensive protection and reliable performance for critical electrical circuits. Its robust design and certifications make it suitable for a wide range of industrial and commercial applications.