3VA5120-4ED11-1AA0 SIEMENS

The 3VA5120-4ED11-1AA0 is a 3VA5 series UL-listed circuit breaker from Siemens, designed for reliable circuit protection in various applications. This 1-pole circuit breaker, part of the frame 125 series, offers a breaking capacity class S, rated at 25kA at 277V, ensuring effective interruption of fault currents. It is specifically configured for line protection, incorporating a TM210 trip unit with fixed thermal-magnetic settings (FTFM). The rated current (In) is 20A, with overload protection (Ir) fixed at 20A to prevent damage from sustained overcurrents. The short-circuit protection (Ii) is set at 15 times the rated current (15 x In), providing rapid response to high-level fault currents. Compliant with UL 489 standards, this circuit breaker is suitable for SB (naval) applications and is designed to operate reliably at 50 degrees Celsius without derating. Note that this model does not include connection terminals, allowing for flexible wiring configurations based on specific installation requirements. This robust design ensures dependable performance and protection for electrical systems.