Siemens 4AM6442-8DD40-0FA0 Isolation Transformer

Siemens 4AM6442-8DD40-0FA0 is a 1‑phase SITAS isolation transformer designed for panel controls and industrial automation, delivering 2 kVA of nominal power with dual 115 V secondary windings (Usec 2x115) and a multi‑tap primary that supports 550/525/500/480/460/440/415/400/380/230/208 V. Each secondary provides up to 8.7 A (Isec 2x8.7 A), for a combined potential of 17.4 A when both secondaries are utilized, at 115 V. The unit operates on 50–60 Hz and provides galvanic isolation (vector group II0 / 0) with a temperature rise of 40 °C and insulation class B. Housing is IP00 protected, with screw/flat‑type connections and installation via screws. It complies with EN 61558‑2‑1, ‑2‑2, ‑2‑4 and is UL/CSA‑recognized, suitable for use as a control circuit transformer and isolation transformer in electrical panels and machine control interfaces. The transformer is rated for a short‑term vector power of about 9,700 VA, reflecting its capability to handle brief surges typical in control applications while maintaining isolation between the primary mains and the secondary circuits.