MEAN WELL WDR Switched Mode DIN Rail Power Supply, 180 → 550V ac ac Input, 12V dc dc Output, 10A Output, 120W

RS Stock No.:: 765-4673
Distrelec Article No.:: 169-36-736
Mfr. Part No.:: WDR-120-12
Brand:: MEAN WELL

MEAN WELL WDR Switched Mode DIN Rail Power Supply, 180 → 550V ac ac Input, 12V dc dc Output, 10A Output, 120W

Subtotal (1 unit)*

£51.70

(exc. VAT)

£62.04

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

86 unit(s) ready to ship
Plus 10 unit(s) ready to ship from another location
Plus 20 unit(s) shipping from 30 October 2025

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Units	Per unit
1 +	£51.70

*price indicative

RS Stock No.:: 765-4673
Distrelec Article No.:: 169-36-736
Mfr. Part No.:: WDR-120-12
Brand:: MEAN WELL

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	MEAN WELL
	Series	WDR
	Type	Switched Mode
	Electrical Phase	1, 2
	Number of Outputs	1
	AC or DC Input Voltage	ac
	Input Voltage	180 → 550V ac
	AC or DC Output Voltage	dc
	Output Voltage	12V dc
	Output Current	10A
	Dimensions	125.2 x 40 x 113.5mm
	Height	125mm
	Width	40mm
	Depth	114mm
	MTBF	268kh
	Output Voltage Adjustment Range	12 → 15V
	Ripple And Noise	120mV Pk-Pk
	Mounting Type	DIN Rail Mount
	Minimum Temperature	-25°C
	Standards Met	RoHS Compliant, TUV EN 60950-1, UL 508
	Maximum Temperature	+70°C
	Special Features	Overvoltage and Short Circuit Protection
	Load Regulation	±0.5%

	Select all
	Brand MEAN WELL
	Series WDR
	Type Switched Mode
	Electrical Phase 1, 2
	Number of Outputs 1
	AC or DC Input Voltage ac
	Input Voltage 180 → 550V ac
	AC or DC Output Voltage dc
	Output Voltage 12V dc
	Output Current 10A
	Dimensions 125.2 x 40 x 113.5mm
	Height 125mm
	Width 40mm
	Depth 114mm
	MTBF 268kh
	Output Voltage Adjustment Range 12 → 15V
	Ripple And Noise 120mV Pk-Pk
	Mounting Type DIN Rail Mount
	Minimum Temperature -25°C
	Standards Met RoHS Compliant, TUV EN 60950-1, UL 508
	Maximum Temperature +70°C
	Special Features Overvoltage and Short Circuit Protection
	Load Regulation ±0.5%

WDR Series Single Output Industrial DIN Rail Power Supply

A range of Mean Well DIN Rail power supplies with a slim design and wide input range. The PSU has short circuit, overload, over voltage and over temperature protection.

Features and Benefits

• 120 W to 480 W

• Slim design and 180 V ac to 550 V ac wide input range (Single and two phase)

• 100% full load burn-in test

• Assemble on industrial rail TS-35/7.5 or 15

• Built-in DC OK relay contact

• Protections: Short circuit/Overload/Over voltage/Over temperature

• Cooling by free air convection

• UL 508 (industrial control equipment) approved

• EN61000-6-2 (EN50082-2) industrial immunity level

• 3 year warranty

Product Application Information

The WDR series are suitable for household appliances, factory, transportation and public utility automation and building automation controls which are increasingly required in commercial and residential premises.

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 to 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, relays and many more.

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.

Standards

UL508, EAC TP TC 004 approved, IEC60950-1 CB approved by SIQ, design refer to GL

Mean Well WDR-120-12 Power Supply, 12 V, 10 A, 120 W

Built-in constant current limiting circuit

Note

Available on EPLAN.