3VA5280-5ED31-1AA0 SIEMENS

The 3VA5280-5ED31-1AA0 is a robust 3-pole circuit breaker from Siemens, designed for reliable line protection in industrial and commercial applications. 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=80A, safeguarding conductors from prolonged overcurrents. The fixed magnetic short-circuit protection (Ii) is set at 10 times the rated current (In=80A), ensuring rapid response to high-level short circuits. This model is specifically designed and approved for shipboard (SB - naval) applications, demonstrating its resilience in demanding environments. It maintains its performance characteristics up to an ambient temperature of 50 degrees Celsius. Note that this particular model is supplied without connection terminals, offering flexibility in installation. The 3VA5280-5ED31-1AA0 provides a dependable solution for circuit protection, enhancing the safety and reliability of electrical systems. Its compliance with UL 489 standards guarantees adherence to stringent safety and performance requirements.