3VA5280-7EC31-1AA0 SIEMENS

The 3VA5280-7EC31-1AA0 is a robust 3-pole circuit breaker from Siemens, designed for reliable line protection in industrial and commercial applications. This UL 489 listed breaker falls under frame size 250 and boasts a high breaking capacity class C, capable of interrupting fault currents up to 100kA at 480V. Equipped with a TM230 trip unit, it provides comprehensive protection against overload and short-circuit conditions. The fixed thermal overload protection (Ir) is set at 80A, ensuring precise response to sustained overcurrents. The magnetic short-circuit protection (Ii) is adjustable within a range of 5 to 10 times the rated current (In=80A), allowing for customized protection settings. This model is specifically certified for naval applications (SB), demonstrating its suitability for demanding environments. It is designed to operate reliably at an ambient temperature of 50 degrees Celsius. Note that this particular model is supplied without connection terminals, offering flexibility in installation. This circuit breaker provides robust and reliable protection for electrical systems.