Siemens 5SX2 U25A is a 25-amp miniature circuit breaker from the 5SX2 family, designed to provide overcurrent protection in Siemens panel systems. It is rated for up to 230/400 V AC and uses a Type A trip characteristic, aligning with the A-curve variant within the 5SX2 lineup. The U25A designation identifies this unit as the 25 A, A-curve model in Siemens’ modular installation breakers used in panelboards and compatible enclosures.
