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Mean Well

Mean Well MDR-20-24 Single Output Industrial Power Supply 20W 24V 1A - DIN Rail

ultra slimbuilt-in active PFC function
SKU MDR-20-24
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Select model — 5 in this family

MDR-20-24
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Overview

MDR-20-24 is the 24V output model of this series: rated current 1A, rated power 24W, typical efficiency 84%.

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
  • Built in DC OK active signal
  • LED indicator for power on
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • 3 years warranty

Specifications

MDR-20-24Specifications from the official datasheet (2024-10-30 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
1A
CURRENT RANGE
0 ~ 1A
RATED POWER
24W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE ADJ. RANGE
21.6 ~ 26.4V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±1.0%
LOAD REGULATION
±1.0%
SETUP, RISE TIMENote.5
500ms, 30ms/230VAC 1000ms, 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.)
84%
AC CURRENT (Typ.)
0.55A/115VAC 0.35A/230VAC
INRUSH CURRENT (Typ.)
COLD START 20A/115VAC 40A/230VAC
LEAKAGE CURRENT
<1mA / 240VAC

PROTECTION

OVERLOAD
105 ~ 160% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
27.6 ~ 32.4V Protection type : Shut down o/p voltage, re-power on to recover

FUNCTION

DC OK ACTIVE SIGNAL (max.)
18 ~ 27V / 20mA

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, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6

SAFETY & EMC (Note 4)

SAFETY STANDARDS
Ul508, TUV BS EN/EN62368-1, EAC TP TC 004, BSMI CNS15598-1, AS/NZS 62368.1 , IS13252(Part1)/IEC60950-1 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, CNS15936 Class B
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2, 3, 4, 5, 6, 8, 11, BS EN/EN55035,BS EN/EN61000-6-1,BS EN/EN61204-3, light industry level, EAC TP TC 020

OTHERS

MTBF
2780.8K hrs min. Telcordia SR-332 (Bellcore) ; 236.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
22.5*90*100mm (W*H*D)
PACKING
0.17Kg; 72pcs/13.2Kg/1.04CUFT
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 cold first 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-20-24 Mechanical Specification
Mechanical Specification
MDR-20-24 Block Diagram
Block Diagram
MDR-20-24 Application of DC OK Active Signal
Application of DC OK Active Signal
MDR-20-24 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the MDR-20-24 for a 24V PLC control panel?

Yes, it is suitable for PLC control panels that need 24V DC up to 1A. Its 24W output is intended for lower-power 24V cabinet loads rather than larger automation assemblies.

Is the MDR-20-24 a good choice for industrial automation devices that run on 24V DC?

It can be used for industrial automation devices inside a DIN rail cabinet when the combined load does not exceed 1A at 24V. The ultra slim 22.5 mm width is useful in compact control enclosures.

Can this model be used in building management systems with 24V controls?

Yes, it fits building management panels that use 24V DC controls, interfaces, or similar low-power devices within a 24W budget. The 85-264VAC input supports a wide range of AC supply conditions.

What are the main differences between the MDR-20-24 and other 24V MDR models?

This datasheet covers the MDR-20 series, in which the MDR-20-24 is the only 24V model, rated 24W and 1A. The other versions are the MDR-20-5 (5V, 15W, 3A), MDR-20-12 (12V, 20W, 1.67A) and MDR-20-15 (15V, 20W, 1.34A), so the choice within this series comes down to the output voltage and current your load needs.

Is the MDR-20-24 suitable for enclosure use in industrial settings?

Yes, it is intended for use inside protected industrial enclosures and control cabinets. Its operating temperature range is -20°C to +70°C, with output derating at higher ambient temperatures according to the derating curve.

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Mean Well MDR-20-24 Single Output Industrial Power Supply 20W 24V 1A - DIN Rail
Mean Well

Mean Well MDR-20-24 Single Output Industrial Power Supply 20W 24V 1A - DIN Rail

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MDR-20-24 is the 24V output model of this series: rated current 1A, rated power 24W, typical efficiency 84%.

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
  • Built in DC OK active signal
  • LED indicator for power on
  • No load power consumption<0.75W
  • 100% full load burn-in test
  • 3 years warranty

Model

  • 10W 24V
  • 100W 24V
  • 20W 24V
  • 40W 24V
  • 60W 24V
View product

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