Brand: SIEMENS
Category: Control Unit
Document Type: Manual
Language: EN
Manual for SITOP PSU300S
Uploaded: Nov. 21, 2025, 9:01 p.m.
Manual Publish Date: 2016-12-01
Warranty Information
No warranty information is explicitly stated in the provided pages.
SITOP PSU300S Overview
The 3-phase SITOP PSU300S is a powerful, regulated standard power supply designed for automated machines and systems. It offers high efficiency and excellent overload behavior.
Key Benefits:
- Wide-range input for global compatibility.
- Adjustable output voltage (24-28 V).
- 150% overload capability for 5s/min (extra power).
- 120% continuous overload capability up to 45°C ambient temperature.
- Integrated signaling contact for "24 V O.K." status.
- No lateral mounting clearances required.
- Wide operating ambient temperature range (-25 to 70°C).
- Can be expanded with SITOP supplementary modules for increased system availability.
Mounting and Installation:
The device is a built-in unit, intended for installation in a housing or control cabinet. It mounts on standard mounting rails, vertically with input and output terminals at the bottom for cooling. Specific clearances are required above and below the unit.
Connections:
Line input terminals connect to supply voltage. Output terminals connect to loads. A signaling contact provides status information.
Operation:
Output voltage is adjustable via a potentiometer. LED indicators and a signaling contact display the operating status.
Troubleshooting and error codes
| Status | LED (5) | Signaling contact (13-14) | Description |
|---|---|---|---|
| Normal operation | Lights up green | Closed | Output voltage >20 V ±0.5 V |
| Overload / Hiccup / Power supply missing / Overtemperature / Overvoltage | Dark | Opened (quiescent position) | Indicates overload, fault condition, or missing power supply. Reset typically after 120s by switching off and on. Some models auto-restart after cooling. |