Siemens 4AM5242-8BD40-0FA1 Single-Phase Control Transformer

The Siemens 4AM5242-8BD40-0FA1 (4AM5242-8BD40-0FA1) is an industrial single-phase control and isolating transformer designed for electrical distribution, control cabinets, and automation systems. Built for heavy-duty industrial environments, this SITAS series transformer provides dependable voltage adaptation and galvanic isolation to safeguard downstream sensitive control electronics, relays, contactors, and signaling circuits against power disturbances and line fluctuations. Engineered for stationary mounting within control enclosures and switchgear assemblies, the transformer features a rigid laminated core construction that ensures efficient electromagnetic performance and thermal stability under continuous operation. With an approximate net weight of 10 kg, it offers rugged mechanical durability and reliable electrical isolation in factory automation, process machinery, and drive systems. The Siemens 4AM5242-8BD40-0FA1 serves as a direct replacement component for preventive maintenance and scheduled hardware overhauls in industrial control installations.