Siemens 4AV2102-2AB Power Supply 24V DC 1A 115/230V AC DIN Rail Used Spare Unit

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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.

Item details

• 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).

Condition

• 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.

Notes

• 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.