3VA5217-7EF41-0AA0 SIEMENS

The 3VA5217-7EF41-0AA0 is a robust and reliable molded case circuit breaker (MCCB) from Siemens' 3VA5 UL series, designed for comprehensive circuit protection. This four-pole circuit breaker, part of Frame 250, offers a breaking capacity class C, capable of interrupting fault currents up to 100kA at 480V, ensuring electrical system safety. It is specifically configured for line protection, utilizing a TM240 trip unit with an adjustable thermal-magnetic (ATAM) function. The rated current (In) is 175A, providing overload protection adjustable from 140A to 175A (Ir=140A...175A). The short-circuit protection (Ii) is set between 5 to 10 times the rated current (Ii=5...10 x In), offering instantaneous tripping during short-circuit events. This model features an unprotected neutral (N) conductor, meaning it does not have a dedicated connection or protection mechanism for the neutral line. This circuit breaker is ideal for industrial and commercial applications where reliable overcurrent and short-circuit protection is crucial. Its adjustable settings allow for fine-tuning to match specific load requirements, enhancing system performance and safety. The 3VA5217-7EF41-0AA0 provides a dependable solution for safeguarding electrical circuits against potential hazards.