Siemens 4AV2102-2AB linear rectifier power supply providing a non‑stabilized 24 V DC, 1 A output from 115/230 V AC input. Unit is DIN‑rail mountable, transformer‑based, and in good working used condition; see photos/label for full specs.
Brand: Siemens
Model: 4AV2102-2AB (4AV2 series)
Type: Linear DIN rail rectifier / power supply, filtered DC output
AC input: 230 (240) V AC or 115 (120) V AC, 50–60 Hz, single‑phase (selectable wiring per front diagram)
DC output: 24 V DC, 1 A nominal, non‑stabilized (24 W)
Design: Safety transformer with bridge rectifier and capacitor filtering, ripple < 5% typical for 4AV2 family
Ratings: Ambient temperature up to 40 °C, insulation class 105 (label “amb. 40 °C, class 105”)
Standards/approvals: DIN VDE 0551, DIN 19240, CE and cURus marks on label
Connections: Plug‑in terminal blocks for primary (N, L1 with tappings 1–4) and secondary DC 24 V output (terminals 31 L–, 32 L+) as shown in front schematic
Indicators: Green “Power on” LED on front panel
Mounting: Includes original metal DIN rail foot/clip, suitable for 35 mm DIN rail
Country/Region of manufacture: Germany (“Made in Germany” on label).
Used, in good working condition.
Visible cosmetic wear: discoloration and marks on plastic housing, some dust and minor oxidation on metal frame and terminals (see photos).
Terminal blocks present and functional; plastic shows normal aging but no major cracks.
No original packaging, documentation, or accessories included.
Member of the Siemens 4AV2 non‑stabilized power supply family designed for supplying control circuits and electronic controls at 24 V DC.
Output voltage varies slightly with load and input level; buyer should review Siemens documentation if tight regulation is required.
Confirm correct primary wiring for 115 V or 230 V operation before energizing, following the printed diagram.
Professional installation is recommended; sold as a used industrial component.
