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Mean Well

Mean Well MDR-40-48 Single Output Industrial Power Supply 40W 48V 0.83A - DIN Rail

ultra slimbuilt-in active PFC function
SKU MDR-40-48
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Select model — 3 in this family

MDR-40-48
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Overview

MDR-40-48 is the 48V output model of this series: rated current 0.83A, rated power 39.8W, typical efficiency 88%.

Features

  • Universal AC input/Full range
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • Class I, Div 2 Hazardous Locations T4
  • LED indicator for power on
  • DC OK relay contact
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • 3 years warranty

Specifications

MDR-40-48Specifications from the official datasheet (2024-10-30 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
0.83A
CURRENT RANGE
0 ~ 0.83A
RATED POWER
39.8W
RIPPLE & NOISE (max.)Note.2
200mVp-p
VOLTAGE ADJ. RANGE
48 ~ 56V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±1.0%
LOAD REGULATION
±1.0%
SETUP, RISE TIMENote.5
500ms, 30ms/230VAC 500ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGE
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY (Typ.)
88%
AC CURRENT (Typ.)
1.1A/115VAC 0.7A/230VAC
INRUSH CURRENT (Typ.)
COLD START 30A/115VAC 60A/230VAC
LEAKAGE CURRENT
<1mA / 240VAC

PROTECTION

OVERLOAD
105 ~ 150% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
57.6 ~ 64.8V Protection type : Shut down o/p voltage, re-power on to recover

FUNCTION

DC OK SIGNAL
Relay contact rating(max.): 30V/1A resistive

ENVIRONMENT

WORKING TEMP.
-20 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
Component : 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes ; Mounting : Compliance to IEC60068-2-6

SAFETY & EMC

SAFETY STANDARDS
UL508, UL62368-1, TUV BS EN/EN62368-1,Class I, Div. 2 Group A, B, C, D Hazardous Locations T4, EAC TP TC 004, BSMI CNS14336-1, AS/NZS 60950.1 ,IS13252(Part1)/IEC60950-1(except 48V)approved
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 (CISPR32), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020, CNS13438 Class B
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2, 3, 4, 5, 6, 8, 11, BS EN/EN55035, BS EN/EN61000-6-2, BS EN/EN61204-3, heavy industry level, EAC TP TC 020

OTHERS

MTBF
2418.5K hrs min. Telcordia SR-332 (Bellcore) ; 301.7K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
40*90*100mm (W*H*D)
PACKING
0.3Kg; 42pcs/13.6Kg/0.82CUFT
Test conditions and notes6
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  5. 5. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
  6. 6. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

MDR-40-48 Mechanical Specification
Mechanical Specification
MDR-40-48 Block Diagram
Block Diagram
MDR-40-48 Derating Curve
Derating Curve

Downloads

FAQ

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 mounting on TS-35/7.5 or TS-35/15 DIN rail. Its 40 x 90 x 100 mm (W x H x D) housing helps 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 with output derating at higher ambient temperatures (see the derating curve), 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?

Within the MDR-40 series, the MDR-40-48 is the 48V version at 39.8W and 0.83A. The other versions are MDR-40-5 at 5V, 30W and 6A, MDR-40-12 at 12V, 40W and 3.33A, and MDR-40-24 at 24V, 40.8W and 1.7A. All share the 85-264VAC input, convection cooling, DC OK relay and the 40 x 90 x 100 mm DIN rail housing.

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Mean Well MDR-40-48 Single Output Industrial Power Supply 40W 48V 0.83A - DIN Rail
Mean Well

Mean Well MDR-40-48 Single Output Industrial Power Supply 40W 48V 0.83A - DIN Rail

Log in to see price

MDR-40-48 is the 48V output model of this series: rated current 0.83A, rated power 39.8W, typical efficiency 88%.

Features

  • Universal AC input/Full range
  • Protections: Short circuit / Overload / Over voltage
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • Class I, Div 2 Hazardous Locations T4
  • LED indicator for power on
  • DC OK relay contact
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • 3 years warranty

Model

  • 40W 48V
  • 100W 48V
  • 60W 48V
View product

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