Siemens 4AM3841-8CN00-0C Single-Phase Transformer Control

Siemens 4AM3841-8CN00-0C is a single‑phase transformer used to provide isolated control voltages inside electrical panels. It features a multi‑tap primary (UPRI) that accommodates a wide range of industrial mains, with primary voltages listed as 600, 575, 550, 525, 500, 480, 460, 440, 415, 400, 240, and 230 V, and a dual secondary that delivers two 115 V windings (2x115 V) for control circuits. The nominal rating shown for related CN variants is 0.16 kVA with a higher 0.49 kVA S6 rating, reflecting two common duty levels in Siemens’ CN family. The unit is UL/CSA recognized and also references VDE/CSA/UL in Siemens documentation, underscoring its suitability for industrial safety standards. It carries an IP00 rating, uses screw or flat‑type terminals, and is designed for DIN rail mounting inside control cabinets. Typical applications include supplying galvanically isolated 115 V control power for relays, contactors, and PLC input circuits in machine controls and panel assemblies, where compact size, reliable isolation, and compatibility with standard Siemens control components are advantageous.