3VA5111-4EC31-1AA0 SIEMENS

The 3VA5111-4EC31-1AA0 is a robust 3-pole circuit breaker from Siemens, designed for reliable line protection in various electrical systems. It falls under the 3VA5 UL frame 125 series, ensuring compliance with UL 489 standards. This circuit breaker boasts a breaking capacity class S, capable of interrupting fault currents up to 25kA at 480V. Equipped with a TM230 trip unit featuring FTAM functionality, it provides comprehensive protection against overloads and short circuits. The rated current (In) is fixed at 110A, while the overload protection (Ir) is also set at 110A. The short-circuit protection (Ii) is adjustable within a range of 5 to 10 times the rated current (In), offering flexibility in adapting to specific application requirements. This model is specifically certified for use in naval applications (SB) and is designed to operate reliably in ambient temperatures up to 50 degrees Celsius. Note that this particular model is supplied without connection terminals. This circuit breaker is engineered to deliver dependable performance and safeguard electrical circuits from potential damage.