3VA5112-4EC31-1AA0 SIEMENS

The 3VA5112-4EC31-1AA0 is a robust 3-pole circuit breaker from Siemens, designed for reliable line protection in various electrical systems. This UL 489 listed breaker falls under frame size 125 and boasts a breaking capacity class S, capable of interrupting fault currents up to 25kA at 480V. Equipped with a TM230 trip unit, it provides comprehensive protection with fixed thermal overload protection set at In=125A. The magnetic short-circuit protection is adjustable, ranging from 5 to 10 times the rated current (Ii=5...10 x In), allowing for customization based on specific application requirements. This model is specifically designed and approved for SB (naval) applications, ensuring compliance with stringent maritime standards. It maintains optimal performance even at elevated ambient temperatures of up to 50 degrees Celsius. Note that this particular model is supplied without connection terminals, offering flexibility in choosing the appropriate connection method. The 3VA5112-4EC31-1AA0 circuit breaker combines advanced protection features with a durable design, making it a dependable choice for demanding electrical environments. Its robust construction and compliance with UL 489 and naval standards ensure reliable operation and safety.