Ming Wei rail power supply MDR-40-12 40W 12V3.33A yijishouquanjingxiaoshanghanshuifa

Ming Wei rail power supply MDR-40-12 40W 12V3.33A yijishouquanjingxiaoshanghanshuifa

Product description:

Product parameters:

  • Brand: MW/Ming Wei
  • Model: MDR-40-12
  • Modulation mode: pulse width modulation
  • Connection: full-bridge
  • Function: waterproof power

Product description

MDR models why DIN rail power supply, quick installation and labor, suitable for installation on DIN rail TS35/7.5 or 15. Is low standby loss models contained built-in feature active power factor correction, DC OK signal output, external conditions shows that 100-Watt models have overheating protection.

Main features
World wide full-range AC input voltage
Installation on DIN Rails TS35/7.5 or 15
No-load loss ﹤ 0.75W (meet the energy star requirements)
With short circuit protection/overload/over voltage protection
International certification UL/CUL/TUV/CB/CE
Shanghai Le Zi technology development limited production
LED indicates working state
Meet the NEC class2/LPS standards (12V/24V/48V models only)
Natural ventilation and cooling
Relay contacts DC OK signal output
100% full of aging test
Using lead-free process, environmentally-friendly RoHS requirements
Taiwan Ming Wei brand, Suzhou factory
3-year warranty
Main parameter
DC output range 12V,0~ 3.33A
Output voltage accuracy ±1%
Ripple 120mV
Efficiency 86%
Input voltage range 85~ 264VAC/120~ 370VDC
Input surge current Cold initiate 20A/115V,40A/230V
Voltage adjustment range Rated output voltage of 0~ +20%
Overload protection Over current point in 105%~ 150% constant-current-limiting automatic recovery
Over voltage protection 125%~ 150% rated output voltage when turned off, to promote recovery
Initiate rise time 230VAC with full load 500ms,30ms,50ms
Le Zi home store Copyright © do not copy
Insulation characteristics Between the input and output: 3KVac, input and shell: 1.5KVac, the output terminal and the shell: 0.5KVac,1 minutes
Working temperature -20~ + 70 ℃ (reference temperature curve)
Shock resistant 10~ 500Hz,2G 10 minutes/period, XYZ axis of 60 minutes each
Certification Certified by UL508,TUV EN60950-1, in line with standard NEC class2/LPS
Electromagnetic compatibility standard Launch: EN55011,EN55022 (CISPR22), EN61204-3 class b, harmonic: EN61000-3-2,-3
Electromagnetic compatibility standard Anti-jamming: EN61000-4-2,3,4,5,6,8,11,ENV50204,ENV55024,EN61000-6-2,EN61204-3,Class a heavy industry standards
Mean time between failure ≥ 301,700 hours, MIL-HDBK-217F (25)
Connection mode Input: 3 points. Output: 6 point screw DIN Terminal
Chassis number 962A
Overall dimensions 40x90x100mm (width x height x depth)
Weight and packaging 0.3 kg per piece; 42/13.6 kg per carton, 0.023 m

Installation guidelines

Shell switching power supply

Shell type power supplies include metal and plastic models, internal PCB Board was wrapped with shell, is usually installed in the system cabinet. Ming Wei power according to the power supply power rating and a design idea why two different types: a built-in cooling fan and the other is without a fan.


1. Before installation or maintenance operation, disconnect the power connection to the application system, ensure you do not reconnect automatically without notice!
2. Use mounting screws with internal components keep a sufficient safety distance from power. Please refer to the sample book shell using the most suitable mounting screws. "buying power supply Le Zi Ming Wei" and have questions, please call 400 600 0430.
3. Non-standard installation direction or work in a high ambient temperature temperature of the power supply will cause the power supply to the internal components, load shedding use. as requested by the optimal installation specifications installation and temperature-load curve to determine the best workloads for power.
4. The fan and vents are not blocked, if there are other sources of heat, you should at least keep a distance of 10-15cm
5. Following who recommendations wiring wire specifications
AWG 18 16 14 12 10 8
Rated current (a) 6A 6-10A 10-16A 16-25A 25-32A 32-40A
Wire cut-area (square mm) 0.75 1.00 1.5 2.5 4 6
Note: the peak inrush current is only available to 1-4 core, core 5 above the inrush current does not exceed the rated current of the 80%
Ensure that all core wire in the Terminal and tighten the terminal screws to prevent contact.
6. For additional product information, please see the section of this Web site


1. In order to prevent risk of electric shock and burns, all the power failure please check by a qualified electrical engineer, is strictly prohibited without removing power shell.
2. Power cannot be installed in a humid environment and near water.
3. Power cannot be exposed to high temperatures and near the fire source, please refer to the specifications to determine maximum ambient temperature power supply applications.
4. Output voltage and output current range of rated values cannot exceed the specifications stipulated.
5. Ground (FG) must be connected to the Earth. "buying power supply Le Zi Ming Wei" and have questions, please call 400 600 0430.
6. All Ming Wei are designed according to the EMC specifications of the power supply, upon request, we can provide the power test reports I. because of the power supply just a part of the application, when the power is integrated into the application system, eventually EMC still need to be tested again to confirm