Siemens SIDAC‑S 4AV2102-2EB00-0A linear DIN rail power supply providing 24 V DC at up to 1 A from 115/230 V AC input. Unit is in good working used condition and includes the original metal DIN rail mounting base; see photos/label for full specifications.
Brand: Siemens
Series: SIDAC‑S
Model: 4AV2102-2EB00-0A
Type: Linear DIN rail power supply / rectifier unit
AC input: 115 V AC or 230 V AC, 50/60 Hz, single phase (selectable wiring, see terminal diagram)
DC output: 24 V DC, 1 A nominal (24 W)
Protection class: Class 105 insulation, ambient temperature up to 40 °C (label “amb. 40 °C, class 105”)
Standards/approvals: CE and cRUus markings, EN 61131‑2, EN 61558 referenced on label
Connections: Plug‑in terminal blocks for primary (L, N, L1) and secondary DC output (terminals 31/32, +/− 24 V DC) per front wiring diagram
Indicators: Green “Power on” LED on front panel
Mounting: Supplied on metal DIN rail foot / clip shown in photos, suitable for 35 mm DIN rail
Country/Region of manufacture: Czech Republic (marked “Made in Czech Republic”)
See photos/label and datasheet for full wiring options, derating curves and dimensions.
Used, in good working condition.
Cosmetic wear from prior use: scratches on plastic cover, light oxidation and dust on metal frame, and some marks on the transformer and PCB (see photos).
Terminal blocks intact; one side plastic cover has a chipped section but terminals remain fully usable (see close‑up photos).
No original packaging, documentation or additional accessories included.
Non‑stabilized linear design with integrated transformer and rectifier; well suited for relay coils, contactors and general 24 V DC control loads where tight regulation is not critical.
Rated for 24 W continuous output with 100% duty cycle at specified ambient; consult datasheet for permissible overload and temperature derating.
Buyer should confirm input wiring (115 V vs 230 V) and terminal allocation using the printed diagram before energizing.
Professional installation is recommended; sold as a used industrial power supply.
