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