Mean Well DIN Rail Panel Mount Power Supply, 15V dc Output Voltage, 1.34A output current

  • RS Stock No. 428-417
  • Mfr. Part No. MDR-20-15
  • Warranty 3 Year
  • Brand Mean Well
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

Mean Well MDR Series Single Output DIN Rail Power Supply

A range of ultra slim single output DIN Rail power supplies with short circuit, overload and over voltage protection. These PSUs can be installed on DIN Rail TS-35/7.5 or 15 and offer cooling by free air convection.

Features and Benefits

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
DC OK relay contact
LED indicator for power-on
No load power consumption <0.75 W
100% full load burn-in test
3 years warranty
Class 1, Div 2 hazardous locations T4

Why use a DIN Rail Power Supply?

The flexibility of DIN Rail mounting systems enables quicker installation time as all devices are able to simply snap onto the metal rails. Power supplies can be easily organised on DIN Rails within enclosed wall boxes or in areas where there is limited space. Similar devices can be mounted next to each other reducing the amount of cabling required. Most power supplies are convection cooled so no cooling fans are needed.
DIN Rail AC/DC power supplies are widely used in many automation, instrumentation and industrial applications. They are used to power a wide variety of DC operated devices including sensors, motors, actuators, solenoids and relays.

Points to Consider When Buying a DIN Rail Power Supply

DIN Rail size– There are three common types of DIN Rails. Top Hat, G section and C section. Most have a depth of 7.5 mm or 15 mm. It is wise to check that your power supply is compatible with your DIN Rail. Protection Types – It is important to choose a power supply that is protected against either short circuit, overload, over temperature or over voltage. Some power supplies also offer a hiccup mode which will allow the PSU to resume operation once the fault is cleared.
Fixed or adjustable output voltage or current – In test systems it is often convenient to have adjustable DC voltage however in other applications a fixed DC supply may be essential.
Cabling and wiring – The input/output lines to and from the power supply should be as short as possible with a large cross sectional area to help minimise noise and heat.
Efficiency – Choose a power supply that has an efficiency over 89% to minimise the amount of power dissipation, especially if the system relies on convection cooling.
Input voltage range – If the DIN Rail power supply you are buying is to be used in Europe and North America as well as the UK then a universal AC input range of 80 V ac to 264 V ac is required.
Standards – If the power supply is to be used in the USA for controlling electric motors then it will need to comply with Standard UL508, the safety standard for industrial control equipment.


UL508, UL60950-1, TUV EN60950-1, Class I, Div. 2 Group A, B, C, D Hazardous Locations T4, EAC TP TC 004, BSMI CNS14336-1 approved

Attribute Value
Minimum Input Voltage 85V ac
Input Voltage 85 → 264 V ac, 120 → 370 V dc
Maximum Input Voltage 264V ac
Output Voltage 15 V dc
Minimum Output Voltage 13.5V dc
Maximum Output Voltage 16.5V dc
Output Current 1.34 A
Power Rating 20W
Number of Outputs 1
Electrical Phase 1
Type Switch Mode
Dimensions 100 x 22.5 x 90mm
Height 100mm
Width 22.5mm
Maximum Input Current 350 mA @ 230 V ac, 550 mA @ 115 V ac
Series MDR
Input Electrical Phase Single Phase
Holdup Time 20 ms @ 115 V ac, 50 ms @ 230 V ac
Depth 90mm
Minimum Temperature -20°C
Mounting Type DIN Rail
Line Regulation ±1%
Input Frequency Range 47 → 63Hz
Power Signal Conversion Type AC-DC
MTBF 236900h
Maximum Temperature +70°C
Protection Features Over Voltage Protection, Overload Protection, Short Circuit Protection
Ripple And Noise 120mV Pk-Pk
Standards Met RoHS Compliant, TUV EN 60950-1, UL 508
Special Features Overvoltage and Short Circuit Protection
Load Regulation ±1%
Output Voltage Adjustment Range 13.5 → 16.5V
Weight 190g
100 In stock for FREE next working day delivery
Price Each
£ 21.49
(exc. VAT)
£ 25.79
(inc. VAT)
Per unit
1 +