Siemens 4AM5242-5AD40-0FA0 SITAS Single-Phase Control Transformer

The Siemens 4AM5242-5AD40-0FA0 (4AM5242-5AD40-0FA0) is a SITAS single-phase control and isolation transformer engineered for industrial automation, power distribution, and electrical control cabinets. Designed to provide safe electrical isolation and reliable auxiliary control voltage, this transformer operates with an input primary voltage of 400 V AC at 50/60 Hz and delivers a secondary output voltage of 230 V AC. It features a rated apparent power output of 1 kVA (1000 VA), delivering stable voltage regulation for contactors, relays, signaling devices, and control circuitry. Built with high-grade electrical laminations and robust insulation, the unit offers IP00 protection and supports standard screw terminal connections for secure panel and mounting rail installation. With a net weight of approximately 10 kg, the 4AM5242-5AD40-0FA0 ensures durable performance under demanding continuous operating conditions across manufacturing plants, machine tools, and process automation systems.