This document is the operating instructions for SITOP modular 20A 1/2phasig product manufactured by SIEMENS AG ÖSTERREICH. It describes the features and usage of the product. Please note that this manual does not cover all the detailed information about the product, for more information, please contact Siemens.
This manual contains safety warnings, handling instructions and required precautions for the SITOP 24 V/20 A power supply. Only qualified personnel may install, service or modify the unit, and the main switch must be turned off before any work.
The document details the electrical specifications, wiring diagrams, jumper configuration for 120 V operation, mounting requirements, and selectable operating modes (constant‑current or shutdown) via selector switches. It also lists environmental limits, protection class, and recommended circuit‑breaker settings. This manual is written in German.
| Input voltage | AC 120/230 V, 50/60 Hz |
|---|---|
| Operating voltage range | 85‑132 V / 176‑264 V |
| Input current (120 V) | 7.7 A / 3.5 A |
| Power consumption (active) | 540 W |
| Efficiency at full load | 89 % |
| Output voltage | 24 V DC (adjustable 24‑28.8 V) |
| Weight | 2.2 kg |
| Recommended circuit‑breaker | Characteristic C or D, 16 A (10 A) |
Insert a jumper between the two “Jump 120VAC*” terminals; the jumper must have the same cross‑section and insulation as the mains cable and must not be longer than 100 mm.
A circuit‑breaker with characteristic C (or D) rated at 16 A (10 A) is recommended.
Yes, two identical units may be paralleled, and the output characteristic can be switched with selector switch A.