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RS Components Ltd- UK£42.33Visit shop Phoenix Contact UNO-PS/1AC/15DC/30W Switch Mode DIN Rail Power Supply 85 → 264V ac Input, 15V dc Output, 2A 30W
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The Phoenix Contact 2903149 is a primary-switched TRIOPOWER power supply designed for industrial applications requiring a stable 24 VDC output. It is ideal for engineers and technicians needing a reliable power source for control cabinets and automation systems. Its key benefit is the push-in connection system, which significantly reduces wiring time and effort, while a caveat to consider is its specialized nature for DIN rail mounting, limiting its use in other contexts. This single-phase unit offers 240W of power and a 10A current output, featuring high efficiency and a robust design for demanding environments.
| Model Part Number | 2903149 |
|---|---|
| Brand | Phoenix Contact |
The push-in connection allows for fast, tool-free wiring. Conductors can be inserted directly into the terminals, significantly reducing installation time and the risk of connection errors.
Yes, it offers a wide operating temperature range from -25°C to +70°C and can even start up at -40°C, making it suitable for harsh environmental conditions.
The dynamic boost provides 150% of the nominal current for up to five seconds. This is useful for starting loads that have high inrush current requirements, such as motors or certain electronic devices.
The Mean Time Between Failures (MTBF) is over 1,800,000 hours at 25°C, indicating a very high level of reliability and a long operational lifespan.
No, this unit is a single-phase input power supply and is not designed for use in three-phase electrical systems.
The power supply has a width of 42 mm, a depth of 160 mm (including terminal blocks), and a height of 130 mm.
Clean the unit with a dry or slightly damp cloth. Avoid using solvents, abrasive cleaners, or excessive moisture to prevent damage.
Verify that the AC input voltage (100-240V AC) is correctly connected to the L and N terminals and that a ground connection is established. Check if the input voltage is within the acceptable range.
Ensure the DC load does not exceed the 10A current limit. Check that the DC output wires are securely connected to the correct terminals. Confirm the AC input is stable and within range.
The load may be exceeding the 10A continuous current rating or the dynamic boost limit. Reduce the load or investigate if the load has a significantly high inrush current that the dynamic boost cannot sustain.
Ensure the ventilation slots are clear and the ambient temperature is within the -25°C to +70°C operating range. Verify the load does not continuously exceed the 240W power rating.
Setup:
The 2903149 is designed for easy DIN rail mounting. Simply slide the unit onto a standard 35mm DIN rail until it securely latches. Connect the single-phase AC input (L, N) and ground wires to the designated terminals using the push-in connection. Connect your DC load (24V DC output and common) to the output terminals, again utilizing the push-in connectors for the positive and negative DC lines.
Compatibility:
This power supply is compatible with standard 35mm DIN mounting rails. It accepts a wide AC input voltage range (100-240V AC) and a narrower DC input range (24-28V AC). Ensure your input power source falls within these specifications. The output is a stable 24 VDC with a maximum current of 10A.
Care:
To ensure optimal performance and longevity, keep the ventilation slots on the unit clear of dust and debris. Periodically check the terminal connections to ensure they remain secure. Cleaning can be done with a dry or slightly damp cloth; avoid using solvents or abrasive cleaners. Ensure the operating temperature stays within the specified range of -25°C to +70°C.
