Mean Well NDR-240-24 240W 24VDC 10A AC/DC Industrial DIN Rail Power Supply Single Output Provided by KAINSC Products
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AI Verdict
This is a 240W, 24VDC, 10A industrial DIN rail power supply with 88.5% efficiency, built for control panels needing regulated fixed output.
This power supply is a strong fit for its intended industrial applications, offering 24VDC at 10A with a slim 63mm form factor for DIN rail mounting. Its comprehensive protection features and certifications like UL 508 directly address the needs of industrial control and automation.
If 240W is insufficient, look for a Mean Well NDR series power supply with a higher wattage output, ensuring at least 30% more power than your actual need for reliability.
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Pros
- Provides a fixed 24VDC output at 10A, delivering 240W for industrial applications.
- Features a wide AC input range from 90 to 264VAC, accommodating various power grids.
- Includes comprehensive protections against short circuit, overload, over voltage, and over temperature.
- Achieves up to 88.5% efficiency, minimizing energy waste.
- Designed with a slim 63mm width for space-saving installation on TS-35/7.5 or TS-35/15 DIN rails.
- UL 508 and CE certified for industrial control equipment, ensuring compliance and safety.
Cons
- Cooling relies solely on free air convection, which might require careful cabinet design to prevent overheating.
- The screw terminal block connector requires manual wiring, which can be time-consuming for installation.
- Ripple and noise is specified at a maximum of 150mVp-p, which might be a consideration for sensitive applications.
- Some Mean Well units, though not this specific model, have had reported quality control issues like poor solder joints or early failures.
Dimension Scores
The power supply delivers a stable 24VDC at 10A (240W) with an 88.5% efficiency, which is competitive for its industrial category.
Cooling is by free air convection, eliminating fan noise, though ripple and noise is 150mVp-p.
It features a metal housing for enhanced power dissipation and industrial certifications, but some general Mean Well quality concerns have been reported.
It uses screw terminal blocks, which are standard for industrial applications but require careful wiring and can be less convenient than quick-connect options.
Best For
- Industrial control systems requiring a stable 24VDC power source.
- Factory automation setups needing DIN rail mountable power.
- Semi-conductor fabrication equipment where space is at a premium.
- Applications benefiting from UL 508 approved components.
Not Recommended For
- Applications requiring adjustable output voltage.
- Environments without adequate airflow for convection cooling.
- Users seeking plug-and-play power solutions without wiring.
Watch Out For
- The power supply might shut down if overloaded or if internal temperatures reach pre-set values, requiring increased output power rating or OLP point modification.
- Some Mean Well power supplies have shown intermittent power-up issues or early failures, though not specifically reported for this model.
- Older reports on Mean Well units describe poor solder joints and potential shorting risks due to inadequate insulation, suggesting a need to inspect units upon arrival.
Full Specifications
| ASIN | B09K5K5R48 |
| Brand | KAINSC PRODUCTS KAWAGUCH INDUSTRIAL SCIENTIFIC |
| Wattage | 240.00 |
| Model Name | NDR-240-24 |
| Form Factor | DIN Rail |
| Item Weight | 2.13 pounds |
| Manufacturer | MEAN WELL ENTERPRISES CO., LTD. |
| Connector Type | Screw Terminal Block |
| Cooling Method | Air |
| Output Wattage | 240 Watts |
| Item model number | NDR-240-24 |
| Product Dimensions | 4.47 x 2.48 x 4.93 inches |
| Power Supply Design | Non-Modular |
| Item dimensions L x W x H | 4.47 x 2.48 x 4.93 inches |
What Buyers Say
While direct user reviews for this specific ASIN are scarce, general feedback on Mean Well industrial power supplies highlights their widespread use and compliance with industrial standards. However, some users have reported quality control issues on other Mean Well series, including units not powering up or exhibiting poor solder joints. The company itself provides guidance on troubleshooting common issues like shutdowns due to overload or over-temperature, suggesting proper sizing is crucial.
“Man, I just needed a reliable 24V for my PLC, and this Mean Well does the job, but I'm always a bit nervous about those QC stories I hear. Hope this one holds up.”
Common Praise
- Provides a consistent 24VDC output for various industrial loads.
- Slim profile (63mm width) saves space in control cabinets.
- UL 508 and CE certifications meet industrial safety and compliance requirements.
- Metal housing aids in heat dissipation without active cooling.
Common Complaints
- Potential for shutdown under heavy load or high ambient temperatures if not properly sized or ventilated.
- Reports of intermittent power-up or early failure in other Mean Well industrial power supply series.
- Concerns about manufacturing quality, such as poor solder joints, observed in some Mean Well units.
- The screw terminal connections can be fiddly to wire, especially in tight spaces.
Ownership Tips
- Ensure adequate clearance (40mm top, 20mm bottom, 5mm sides) for free air convection to prevent thermal shutdowns.
- Consider using a power supply rated 30% higher than your actual load to boost reliability and prevent overload trips.
- Double-check all screw terminal connections for tightness after installation to avoid intermittent power issues.
- Inspect the unit upon arrival for any visible manufacturing defects, like loose components or poor solder work, given past reports on other Mean Well products.
Frequently Asked Questions
What is the output voltage and current of this power supply?
It provides a fixed 24VDC output with a rated current of 10A.
Can this power supply be used globally?
Yes, it has a universal AC input range from 90 to 264VAC, making it suitable for various international power standards.
What kind of protections does it offer?
It includes protections against short circuit, overload, over voltage, and over temperature.
How is this power supply cooled?
It uses free air convection for cooling, meaning it does not have an internal fan.
What type of mounting does it support?
It is designed for DIN rail mounting on TS-35/7.5 or TS-35/15 rails.
Is this power supply certified for industrial use?
Yes, it is UL 508 approved for industrial control equipment and CE certified.
What is the efficiency of this power supply?
It has a high efficiency of up to 88.5%.
Buying Guide
When you're looking at industrial power supplies like this, you're not just buying a box that makes electricity. You need to match its output (voltage and current) to what your equipment needs. Think about where it's going to live – if it's in a cramped cabinet, that slim design matters. And since it's industrial, certifications like UL 508 are a big deal for safety and compliance. Don't forget about cooling; 'free air convection' means it needs space to breathe.
Wattage (240W)
This is the total power the supply can deliver. Think of it like the horsepower of an engine; if your system needs 200W, a 240W supply gives you a little headroom, which is important for stability and longevity.
Output Voltage (24VDC) & Rated Current (10A)
This tells you the type of power and how much of it your devices will get. If your equipment needs 24 volts, this supplies it. The 10 amps is the maximum current it can provide, like how much water can flow through a pipe; if your devices try to pull more, you'll have problems.
Form Factor (DIN Rail)
This means it's designed to snap onto a standard metal rail (DIN rail) commonly found in industrial control cabinets. It's about how it physically integrates into your setup, making installation organized and secure.
Efficiency (88.5%)
This number tells you how much of the input power actually gets converted into usable output power, versus how much is lost as heat. Higher efficiency means less wasted energy, less heat generated, and potentially lower operating costs.
Alternatives
If this doesn't fit, look for power supplies with higher wattage or different output voltages, and consider models with active cooling if your enclosure has poor airflow, or quick-connect terminals for faster installation.
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