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MEAN WELL MDR-40-48 DIN Rail Power Supply, 48 V, 0.83 A, 39.8 W
MEAN WELL MDR-40-48 DIN Rail Power Supply, 48 V, 0.83 A, 39.8 W
MEAN WELL MDR-40-48 DIN Rail Power Supply, 48 V, 0.83 A, 39.8 W

At a glance

Output Voltage
48 V
Rated Output Current
0.83 A
Rated Output Power
39.8 W
Input Voltage Range
85 to 264 V AC, 120 to 370 V DC
Efficiency (typ.)
88%
Operating Temperature
-20 to +70 °C
MEAN WELL logoModel MDR-40-48Current model

MEAN WELL MDR-40-48 DIN Rail Power Supply, 48 V, 0.83 A, 39.8 W

Price on request

At a glance

Output Voltage
48 V
Rated Output Current
0.83 A
Rated Output Power
39.8 W
Input Voltage Range
85 to 264 V AC, 120 to 370 V DC
Efficiency (typ.)
88%
Operating Temperature
-20 to +70 °C

Clips onto a DIN rail in a control cabinet to power access controllers, PLCs, relays, sensors and other DC equipment from the mains. 39.8 W DIN rail power supply with a 48 V DC output rated at 0.83 A, for 85 to 264 V AC, 120 to 370 V DC input.

Output voltage
5 V12 V24 V48 V

Part of the MEAN WELL MDR-40 series. Compare all 4 models

Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.

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Ask for helpCompatibility, sizing and what else you need.
  • WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
  • DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery

Overview

What it is

The MEAN WELL MDR-40-48 is a 39.8 W DIN rail power supply from the MDR-40 series (40 W Single Output Industrial DIN Rail Power Supply). It provides a 48 V DC output with up to 0.83 A of rated current.

What it is used for

DIN rail supplies clip onto a standard TS-35 rail inside control panels and electrical cabinets, a common way to power access controllers, PLCs, relays and sensors.

Key Specifications

  • Input range: 85 to 264 V AC, 120 to 370 V DC.
  • Output: 48 V, 0.83 A rated current, 39.8 W rated power.
  • Output voltage adjustable over 48 to 56 V.
  • Typical efficiency: 88%.
  • Operating temperature: -20 to +70 °C (see derating curve in datasheet).
  • Dimensions: 40 x 90 x 100 mm (W x H x D).

Buying considerations

Choose a rated current with headroom above the total load of the connected devices, and check the derating curve in the datasheet if the supply will run hot or at low input voltage. Other output voltages and power ratings in the same series are listed on this page.

Installation considerations

MEAN WELL treats this unit as a component to be installed inside final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring, safety and EMC details are in the official datasheet linked below.

Features

MEAN WELL MDR-40-48 DIN Rail Power Supply, 48 V, 0.83 A, 39.8 W, dimension drawing
Check the datasheet for tolerances.

Size and fit

Dimensions
40 x 90 x 100 mm (W x H x D)
Weight
0.3 kg
Mounting
DIN Rail

Technical specifications

Key facts

What is it?
DIN rail power supplyBrand MEAN WELL, model MDR-40-48
What does it output?
48 V, 0.83 A, 39.8 W
What input does it accept?
85 to 264 V AC, 120 to 370 V DC
How does it mount?
DIN Rail
Which documents are available?
Datasheet, certificate (2), user manual Open documents

RelatedSeriesMEAN WELL MDR-40 series, 4 modelsDocumentsAll MEAN WELL documents

Output

Output Voltage
48 V
Rated Output Current
0.83 A
Output Current Range
0 to 0.83 A
Rated Output Power
39.8 W
Output Voltage Adjustment Range
48 to 56 V
Output Voltage Tolerance
±1.0%
Ripple and Noise (max.)
200 mVp-p
Line Regulation
±1.0%
Load Regulation
±1.0%
Efficiency (typ.)
88%
Hold Up Time (typ.)
50 ms/230 V AC, 20 ms/115 V AC at full load

Input

Input Voltage Range
85 to 264 V AC, 120 to 370 V DC
Input Frequency Range
47 to 63 Hz
Leakage Current
<1 mA / 240 V AC

Protection

Withstand Voltage
I/P-O/P: 3 kV AC, I/P-FG: 2 kV AC, O/P-FG: 0.5 kV AC

Environment

Operating Temperature
-20 to +70 °C (see derating curve in datasheet)
Operating Humidity
20 to 90% RH non-condensing

Physical

Dimensions
40 x 90 x 100 mm (W x H x D)
Weight
0.3 kg
Mounting
DIN Rail

Approvals

MTBF
2418.5K hrs min. Telcordia SR-332 (Bellcore)

Other

Series
MDR-40
Warranty
Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
Brand

MEAN WELL
Power Output

39.8 W

Downloads

Documentation

  • MDR-40 series datasheetPublicDatasheet · Family · meanwell.com
    Download
Certificates and compliance documents (2)
  • MDR-40 BIS certificate (MEAN WELL)PublicCertificate · Family · meanwell.com
    Download
  • MDR-40 CE declaration of conformityPublicCertificate · Family · meanwell.com
    Download

User manual

Certificate and compliance document (1)
  • MDR-40 Other DeclarationPublicUser manual · Family · meanwell.com
    Download

Series documents can differ from your exact model. Report a wrong or missing file

Questions about this product

What input voltage does the MDR-40-48 accept?

MEAN WELL lists an input range of 85 to 264 V AC, 120 to 370 V DC for the MDR-40 series.

Can the output voltage of the MDR-40-48 be adjusted?

Yes. The datasheet gives an adjustment range of 48 to 56 V.

Ask about this modelSetup, compatibility, what is in the box
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