What it is and what it delivers
The Siemens 6AG1332-1SH52-7AA0 is a 24 VDC switched-mode power supply from the SITOP family, rated for 4 A continuous output from a universal AC/DC input. The output voltage adjusts from 22.2 to 26.4 V, covering the standard 24 V nominal and providing margin for line drops.
Input and output flex
Input accepts 47–63 Hz line voltage or DC 110–300 V. The feeder circuit should be protected with a 10 A B-curve or 6 A C-curve MCB. Output is galvanically isolated to SELV, with a typical response delay under 0.5 s and a load-step recovery of 1 ms (10–90%). I²t limit of 2.5 A²s helps coordinate upstream protection.
Mounting and wiring
Snaps onto a 35×7.5/15 DIN rail per EN 60715. Dimensions are 90 mm wide, 90 mm high, 55 mm deep. Screw terminals accept 0.5–2.5 mm² solid or finely stranded wire — one terminal per phase for L, N and two each for +, —.
Thermal behaviour and derating
Rated for 4 A up to +55 °C ambient; above that, derate linearly by 2 %/K to +70 °C. The internal fuse protects against short circuits, and IP20 enclosure keeps hands out. Efficiency is 89 % at rated load, keeping self-heating low inside the cabinet.
Compliance and approvals
CE marked. Emission complies with EN 55022 Class B (residential/commercial limit) and immunity meets EN 61000-6-2 (industrial environment). No UL or CSA mark listed, so verify local code acceptability.