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The Siemens SITOP PSU Series represents the global benchmark for industrial DIN-rail mounted switched-mode power supplies (SMPS). Renowned for their high efficiency and industrial-grade reliability, SITOP units deliver a stabilized 24 VDC output (alongside 12V and 48V versions) from single-phase or three-phase factory mainlines. They are the standard choice for powering PLCs, HMIs, sensors, and critical automation control loops under fluctuating network conditions.
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Key Specifications (6EP1332-2BA20 Reference Baseline)
| Feature | Detail |
|---|---|
| Manufacturer | Siemens AG (Germany) |
| Product Brand / Line | SITOP Smart (PSU100S Family) |
| Input Supply Voltage | 1-Phase AC 120 V / 230 V (Auto-switching) |
| Nominal Output Rating | 24 V DC @ 2.5 Amps (60 Watts power rating) |
| Voltage Trim Range | Adjustable from 24 V to 28 V via front potentiometer dial |
| Efficiency Index | Up to 89.5% at peak nominal operation load |
| Residual Ripple / Noise | ≤ 150 mV peak-to-peak maximum |
| Mounting Profile | Snaps onto standard 35 mm DIN-rail systems |
| Enclosure Rating | IP20 protected enclosed chassis |
| Diagnostic Hookups | Front green LED indicator + isolated relay signal contact |
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