Teltonika 120W 48V DIN Rail Power Supply
The Teltonika PR327NP0 is a 120W 48V DIN Rail Power Supply providing a stable and reliable DC power source for compatible industrial networking equipment, automation systems and control-panel installations.
It converts a standard 100–240V AC mains input into a regulated 48V DC output, supplying up to 2.5A and 120W. DIN rail mounting allows the power supply to be installed neatly inside industrial cabinets, communications enclosures and equipment racks.
Screw-terminal connections provide secure input and output wiring, while integrated short-circuit protection helps protect the power supply and connected equipment. A dielectric withstand rating of 4,242V DC between the primary and secondary circuits provides a high level of electrical isolation.
The power supply is designed to operate across a broad ambient temperature range and has an MTBF rating of 453,300 hours, making it suitable for long-term use in professionally installed industrial and communications systems.
Key Features
- 120W maximum output power
- 48V DC output at up to 2.5A
- Universal 100–240V AC input
- Designed for DIN rail installation
- Secure screw-terminal input and output connections
- Integrated short-circuit protection
- 4,242V DC primary-to-secondary dielectric withstand rating
- Operating ambient temperature range from -20°C to +70°C
- Maximum ambient temperature of +50°C when operating at full load
- MTBF rating of 453,300 hours
- Compliant with applicable EN and BS EN safety and EMC standards
Technical Specification
| Specification | Details |
|---|---|
| Maximum output power | 120W |
| Nominal input voltage | 100–240V AC |
| Absolute input voltage range | 90–264V AC |
| Nominal input frequency | 50/60Hz |
| Absolute input frequency range | 47–63Hz |
| Input current | 2.25A |
| Inrush current | 120A |
| Nominal output voltage | 48V DC |
| Output voltage range | 47–56V DC |
| Output current | 2.5A |
| Short-circuit protection | Yes |
| Dielectric withstand test | 4,242V DC, primary to secondary |
| MTBF | 453,300 hours |
| Input connection | Screw terminal |
| Output connection | Screw terminal |
| Weight | 520g |
| Ambient operating temperature | -20°C to +70°C |
| Maximum temperature at full load | +50°C |
Safety and EMC Certification
| Category | Standards |
|---|---|
| Safety | EN 62368-1:2014+A11:2017 BS EN 62368-1:2014+A11:2017 |
| EMC | EN 55032:2015/A1:2020 BS EN 55032:2015+A1:2020 EN 55035:2017/A11:2020 BS EN 55035:2017+A11:2020 EN IEC 61000-3-2:2019/A1:2021 BS EN IEC 61000-3-2:2019 EN 61000-3-3:2013/A2:2021 BS EN 61000-3-3:2013 AMD.1:2019 |
Temperature and Altitude Notice
The maximum ambient operating temperature at full load is +50°C. For installations operating above an altitude of 2,000 metres (6,500 feet), apply an ambient temperature derating of 3.5°C for every additional 1,000 metres.
Installation note: This is a mains-powered industrial power supply and should be installed inside a suitable enclosure by a competent person. Always confirm that the connected equipment accepts a 48V DC input and that its maximum current requirement does not exceed 2.5A.

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