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Mean Well MDR-20-12 Single Output Industrial Power Supply 20W 12V - DIN Rail

Q: Can I use the MDR-20-12 for a small 12V PLC or control panel circuit?

Yes, it is suitable for small PLC or control panel loads that require 12V DC up to 1.67A. The 20W output is aimed at lighter-duty industrial control applications rather than high-current 12V loads.

Q: Is the MDR-20-12 a good fit for industrial automation components that need 12V DC?

It can be used for industrial automation components inside a cabinet when the total 12V load stays within 1.67A. Its ultra slim 22.5 mm width helps in narrow DIN rail layouts where panel space is limited.

Q: Can this power supply be used in building management control enclosures with 12V devices?

Yes, it is appropriate for building management enclosures that use 12V DC controllers, relays, or interface devices within a 20W power budget. The 85-264VAC input also supports a broad AC input range for building panels.

Q: What is the difference between the MDR-20-12 and other 12V MDR models?

For 12V outputs in this series, the MDR-10-12 is 10W and 0.84A, the MDR-20-12 is 20W and 1.67A, the MDR-40-12 is 40W and 3.33A, the MDR-60-12 is 60W and 5A, and the MDR-100-12 is 90W and 7.5A. The main differences are output capacity and physical size within the same DIN rail family.

Q: Is the MDR-20-12 suitable for control cabinet and enclosure use?

Yes, it is intended for protected control cabinets and enclosures rather than exposed environments. Its operating temperature range is -20°C to +70°C, which supports use in a wide range of indoor industrial panel conditions.

ultra slim, built-in active PFC function

SKU:

MDR-20-12

Model

10W 12V

$15.22 USD

SKU: MDR-10-12

20W 12V

$15.98 USD

SKU: MDR-20-12

40W 12V

$22.54 USD

SKU: MDR-40-12

60W 12V

$21.85 USD

SKU: MDR-60-12

100W 12V

$40.05 USD

SKU: MDR-100-12

Product variants

$15.98 USD ~~$17.53~~

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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 signal output

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, 20A at 115VAC, 40A at 230VAC
DC adjustment range	±10% rated output voltage
Overload protection	105%~160% constant current limiting, auto-recovery
Over voltage protection	115%~135% 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	Open collector
Safety standards	UL508, TUV EN60950-1 approved
EMC standards	EN55022 class B, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11, EN61204-3
Connection	I/P: 3 poles, O/P: 3 poles screw DIN terminal
Dimension (LxWxH)	22.5x90x100
Packing	72pcs / 14.7kg

Specifications

Brand

Mean Well
Series

MDR Series
Power Rating

20 Watt
Output Voltage

12 Volt
Rated Current

1.67 Ampere
Input Voltage

85V~264V
No of Output

1
Standards Met

BSMI,CB,CE,cUL,EAC,RCM,TUV
Operating Temperature

-20°C~70°C
Warranty

3 Year
Length

3.94 in
Width

3.54 in
Height

0.89 in
Weight

0.37 lb

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Frequently Asked Questions

Can I use the MDR-20-12 for a small 12V PLC or control panel circuit?

Yes, it is suitable for small PLC or control panel loads that require 12V DC up to 1.67A. The 20W output is aimed at lighter-duty industrial control applications rather than high-current 12V loads.

Is the MDR-20-12 a good fit for industrial automation components that need 12V DC?