DIN rail power supplies are the workhorses of industrial control panels, but choosing between two part numbers isn't about brand loyalty-it's about matching input voltage, output voltage, and current to the equipment you're powering. The Puls QT20.241 and MW NDR-120-12 both mount on DIN rails, but their electrical personalities are different. Here's a head-to-head for the two listings.
Quick verdict
If your control panel needs a higher-output-voltage supply fed by a high-voltage AC input, the Puls is the one to watch. If a lower-output-voltage supply with a defined current and power rating is enough for your loads, the MW is the one to consider. The table below gives you the concrete numbers to match to your system.
Price and spec comparison
| Product | Listed price | Price bar | Output/Input | Condition |
|---|---|---|---|---|
| New Puls QT20.241 DIN Rail Power Supply 480VAC Input 24VDC Output | USD 225.00 | 24VDC output; 480VAC input | New - Open box | |
| 10A Industrial DIN Rail Power Supply, NDR-120-12 Output 12V Power Supply | USD 39.99 | 12VDC output at 10A (120W) | New |
Where each product wins
The Puls QT20.241 is the only one of these two with a 480VAC input rating and a 24VDC output, so it's the natural fit for a panel wired for that higher input voltage. The MW NDR-120-12 has a decisive advantage on listed price and is described as new, and its 10A/120W rating gives you a concrete power budget for 12V loads. If you need the 24V rail, the Puls is the only one that gets you there; if 12V is enough, the MW is the lower-priced selection. You shouldn't choose solely on price, because the output voltage difference is the real divider.
Product notes
New Puls QT20.241 DIN Rail Power Supply 480VAC Input 24VDC Output
The Puls QT20.241 is a compact DIN rail power supply designed for industrial use. Its 480VAC input and 24VDC output make it a candidate for three-phase industrial services and control panels that run a 24V DC bus. The listing condition is new - open box, so the unit itself has not been used, but the packaging has been opened. The PULS brand and part number QT20.241 are clearly identified in the listing. At the higher end of the price range in this comparison, it's a more expensive option than the MW, and that's the main trade-off if you're watching cost. The open-box condition is another consideration if you prefer a sealed retail unit.
10A Industrial DIN Rail Power Supply, NDR-120-12 Output 12V Power Supply
The MW NDR-120-12 is a 12VDC DIN rail supply rated at 10A, which translates to 120W of nominal power. It is listed as new, with a DIN rail mount and an installation area covering indoor and outdoor use. The part number NDR-120-12 and brand MW align with a 120W 12V supply. The indoor/outdoor installation area gives you flexibility if your enclosure is exposed to weather. Its listed price sits far below the Puls, making it the more economical pick for 12V applications. The limitation is that its output is fixed at 12VDC; if your system needs 24VDC or a 480VAC input, you'd need a different supply with those specifications.
Final choice by use case
Choose the Puls QT20.241 when your system matches the higher-voltage input and output specifications. Choose the MW NDR-120-12 when your loads run on the lower-voltage rail and you want the lower listed price. Let your existing panel's input and output needs be the deciding factor.
