User Manual for SCS Sentinel PSWM Switching Power Supply
Quick guide for the SCS Sentinel PSWM switching power supply. Includes installation instructions, wiring diagrams, safety precautions, and technical specifications for 12V DC output.
Table of contents
Quick guide from the manual
The SCS Sentinel PSWM is a switching power supply designed to provide a 12V DC output. It is intended for indoor use and must be mounted on a DIN-rail. The device is protected against overloads; if the consumption exceeds 1A, the device will stop and restart automatically after a few minutes.
Installation
The power supply must be installed by qualified personnel who understand the relevant regulations. Ensure the installation is performed in a workmanlike manner.

- The device must be installed indoors in a self-extinguishing box.
- Mount the unit on a DIN-rail.
- Ensure the installation location is free from humidity, dust, chemical products, and extreme temperatures.
- Do not install at an altitude exceeding 2000m.
Wiring and Connection
Before starting, ensure the power is turned off. All connections must be made by qualified personnel.
- Connect the AC mains cables to the input terminals.
- Connect the output cables to the output terminals.
- Ensure all connections are secure and tightened to a torque of 0.25 Nm.
- Verify the polarity of the output cables before connecting to the equipment.
- Ensure the installation is protected by a surge absorber or similar device.
Safety Precautions
Failure to follow these instructions may result in electric shock or damage to the equipment.
- Danger of Electrocution: Always cut the power before working on the device.
- Do not use in environments not specified on the product label.
- Do not connect to an unspecified power source.
- Do not open or alter the power supply.
- Keep away from children.
- Do not install near heat sources or in direct sunlight.
Technical Specifications
- Input Voltage: 230V AC +/- 10%, 50/60 Hz
- Output Voltage: 12V DC
- Maximum Current: 1A
- Mounting: DIN-rail
- Screw Torque: 0.25 Nm
- Dimensions: 54.5mm (diameter) x 51mm (W) x 26.5mm (H)
Disposal and Warranty
Do not dispose of this product with household waste. Use the selective collection system provided by your retailer. The product is covered by a 2-year warranty from the date of purchase. Proof of purchase is required for any warranty claims.
Manufacturer information
SCS Sentinel
Practical help
Common problems
The device has likely exceeded the 1A current limit. It will restart automatically after a few minutes once the load is reduced.
Ensure the device is not installed in areas with high humidity, dust, chemical fumes, or extreme temperatures, as these are not suitable environments.
Before use
- Ensure the power supply is installed on a DIN-rail.
- Verify that the input voltage is 230V AC 50/60Hz.
- Check that the output load does not exceed 12V DC 1A.
- Ensure all wiring connections are secure and tightened to 0.25 Nm.
- Confirm the installation location is indoors and protected from the elements.
Specs in practice
- Input Voltage
- 230V AC +/- 10%, 50/60 Hz
- Output Voltage
- 12V DC (continuous)
Images and diagrams
- The diagram on page 1 illustrates the terminal block (A) and the screw locations (B) for securing the wires.
- S1 indicates the connection points for the input and output wiring.
Model compatibility
- Designed for indoor use only.
- Not suitable for altitudes exceeding 2000m.
- Must be installed in a self-extinguishing box.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.