MDR-40-12 Din rail switching power supply

MDR-40-12  Din rail switching power supply Features:

Low price and high reliability

105°C output capacitorAC input power suitable for the world

Hight efficiency and low operation temperature

Soft-start current can reduce the AC input impact effecticly

With Short-circuit and owwerload protection

Compact size,light weight100% full-load burning testInstalled with EMI filter,minimum wave

MDR-40-12  Single output switching power supply Pictures:


MDR-40-12   Din rail switching power supply SPECIFICATIONS:

Model                MDR-40-5       MDR-40-12      MDR-40-24      MDR-40-48

DC Voltage               5V                 12V                 24V                 48V

Rated Current           6A                 3.3A               1.7A                0.83A

CurrentRange        0-6A               0-3.3A            0-1.7A            0-0.83A

Rated Power            30W                40W              40.8W            39.8W

Ripple & Noise      80mVp-p       120mVp-p        150mVp-p        200mVp-p

VoltageAdj.Range -5%,+10%   -8%,+10%          ±10%             ±10%

Voltage Tolerance    ±2%               ±1%                ±1%                ±1%

Setup, Rise Time 500ms,30ms/230VAC 500ms,30ms/115VAC at full load

Hold Up Time 50ms/230VAC 20ms/115VAC at full load


VoltageRange 88~264VAC 47~63Hz; 124~370VDC

AC Current 1.1A/115V 0.7A/ 230V

Efficiency 78% 86% 88% 88%

Inrush Current Cold start 30A/115V 60A/230V

Leakage Current <1mA/240VAC


Over Load 105%~160%

Protection type: Constant current limiting, recovers automatically after fault condition is removed

Over Voltage 115%~135%

Protection type: Shut down o/p voltage, re-power on to recover


Working Temp., Humidity -20°C~+60°C; 20%~90%RH

Storage Temp., Humidity -40°C~+85°C; 10%~95%RH

Temp. Coefficient ±0.03%/°C(0~50°C)

Vibration 10~500Hz, 2G 10min./1cycle, period for 60min, each along X, Y, Z axes


Withstand Voltage I/P-O/P: 3KVAC

Isolation Resistance I/P-O/P: 100M Ohms / 500VDC


Safety Standard Design refer to UL60950-1,TUV EN60950-1,EN50178

EMC Standard Design refer to EN55011,EN55022,EN61000-3-2,-3,EN61000-4-2,3,4,5,6,8,11,ENV50204,EN55024,EN61000-6-2,EN61204-3


Dimension 40*90*100mm(W*H*L)

Weight 0.33Kg

Packing 50pcs/carton

According to your order,we can provide different cartons for you.


1.All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature.

2.Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1μ & 47μ parallel capacitor.

3.Tolerance: includes set up tolerance, line regulation and load regulation.

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.

MDR-40-12  Din rail switching power supply Size:

MDR-40 switching power supply

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