Over 15 years experience of providing support of MEAN WELL Power Supplies
Description
Description
Features
| Universal AC input / Full range |
| Installed on DIN rail TS35 / 7.5 or 15 |
| Protections: Short circuit / Overload / Over voltage |
| No load power consumption <0.75W |
| LED indicator for power on |
| DC OK relay contact |
| Cooling by free air convection |
| 100% full load burn-in test |
| 3 years warranty |
General Specification
| AC input voltage range | 85~264VAC; 120~370VDC |
| AC inrush current | Cold start, 30A at 115VAC, 60A at 230VAC |
| DC adjustment range | 0~+20% rated output voltage |
| Overload protection | 105%~150% constant current limiting, auto-recovery |
| Over voltage protection | 125%~150% rated output voltage |
| Setup, rise, hold up time | 500ms, 30ms, 50ms |
| Withstand voltage | I/P-O/P:3kVAC, I/P-FG:1.5kVAC, 1minute |
| Working temperature | -20~+70°C (refer to output derating curve) |
| DC OK signal | Relay contact |
| Safety standards | UL508, TUV EN60950-1, UL60950-1 approved |
| EMC standards | EN55022 class B, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11, EN61204-3, EN61000-6-2 heavy industry level |
| Connection | IP: 3 poles, O/P: 6 poles screw DIN terminal |
| Dimension (LxWxH) | 40x90x100 |
| Packing | 42pcs / 13.6kg |
Specifications
Specifications
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BrandMean Well
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SeriesMDR Series
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Power Rating39.8 Watt
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Output Voltage48 Volt
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Rated Current0.83 Ampere
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Input Voltage85V~264V
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No of Output1
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Standards MetBSMI,CB,CE,cUL,EAC,RCM,TUV,UL
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Operating Temperature-20°C~70°C
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Warranty3 Year
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Length3.94 in
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Width3.54 in
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Height1.57 in
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Weight0.66 lb
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the MDR-40-48 for a 48V industrial control or automation circuit?
Yes, this model is intended for 48V DC loads up to 39.8W and 0.83A. It is a fit for DIN rail control assemblies where the equipment requires a regulated 48V supply rather than 12V or 24V.
Is the MDR-40-48 suitable for 48V building management or control panel equipment?
It can be used in building management or industrial control panels when the connected equipment is rated for 48V DC and the total load remains within 0.83A. The 85-264VAC input range supports installation in standard AC-fed control cabinets.
Would this work for slim DIN rail panels that need a 48V power supply?
Yes, the unit is built for DIN rail mounting and uses an ultra slim housing. Its 100.0 x 90.0 x 40.0 mm dimensions help when a 48V supply must fit into a narrow enclosure.
Can the MDR-40-48 be used for low-current 48V distributed control devices inside a cabinet?
Yes, it is suited to 48V DC devices whose combined load stays within 39.8W and 0.83A. That makes it better for lighter 48V control loads than for higher-current applications.
Is the MDR-40-48 designed for enclosure use in industrial environments?
Yes, it is best suited to installation inside a control cabinet or enclosure. The operating temperature range is -20C to +70C, while no separate exposed-environment protection rating is provided in the listed specs.
How does the MDR-40-48 compare with other MDR DIN rail power supplies?
For 48V versions in the listed series, MDR-40-48 is 39.8W and 0.83A, MDR-60-48 is 60W and 1.25A, and MDR-100-48 is 96W and 2A. Other siblings are MDR-10-5 at 10W and 2A, MDR-20-5 at 15W and 3A, MDR-40-5 at 30W and 6A, MDR-60-5 at 50W and 10A, MDR-10-12 at 10W and 0.84A, MDR-20-12 at 20W and 1.67A, MDR-40-12 at 40W and 3.33A, MDR-60-12 at 60W and 5A, MDR-100-12 at 90W and 7.5A, MDR-10-15 at 10W and 0.67A, MDR-20-15 at 20W and 1.34A, MDR-10-24 at 10W and 0.42A, MDR-20-24 at 24W and 1A, MDR-40-24 at 40.8W and 1.7A, MDR-60-24 at 60W and 2.5A, and MDR-100-24 at 96W and 4A.
Other MDR-40 Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well MDR-40-24 Single Output Industrial Power Supply 40W 24V - DIN Rail | 40.8W | 24V | 1.7A | Indoor | $20.65 | View |
| Mean Well MDR-40-5 Single Output Industrial Power Supply 40W 5V - DIN Rail | 30W | 5V | 6A | Indoor | $21.18 | View |
| Mean Well MDR-40-12 Single Output Industrial Power Supply 40W 12V - DIN Rail | 40W | 12V | 3.33A | Indoor | $21.18 | View |




