MPN

MEAN WELL TDR Switched Mode DIN Rail Power Supply, 340 → 550 V ac, 480 → 780 V dc, 24V dc dc Output, 20A

RS Stock No.:: 145-7857
Distrelec Article No.:: 301-57-015
Mfr. Part No.:: TDR-480-24
Brand:: MEAN WELL

MEAN WELL TDR Switched Mode DIN Rail Power Supply, 340 → 550 V ac, 480 → 780 V dc, 24V dc dc Output, 20A

Subtotal (1 unit)*

£160.19

(exc. VAT)

£192.23

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

72 unit(s) ready to ship
Plus 17 unit(s) ready to ship from another location
Plus 16 unit(s) shipping from 10 September 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	£160.19

*price indicative

RS Stock No.:: 145-7857
Distrelec Article No.:: 301-57-015
Mfr. Part No.:: TDR-480-24
Brand:: MEAN WELL

Mean Well HDR Series DIN Rail Power Supply

The HDR series PSU is an economical and ultra slim power supply which can be adapted to be installed on TS-35/7.5 or TS-35/15 DIN Rails. The body has a narrow width which allows for space saving within a cabinet. The HDR series power supply has been designed with plastic housing that can effectively prevent electrical hazards.

Features and Benefits

• Stepped shape plastic housing

• Full range input

• Compact size

• Isolation Class II

• Can be ssembled on an industrial DIN Rail TS-35/7.5 or 15

• DC output voltage adjustable

• No load power consumption <0.3 W

Product Application Information

• Industrial control systems

• Building automation

• Factory automation

• Electro-mechanical apparatus

• Household control system

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.

Standards

UL60950-1, UL508, TUV EN61558-2-16, IEC60950-1 approved; Design refer to EN50178, TUV EN60950-1

Note

Available on EPLAN.

Mean Well

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	MEAN WELL
	Series	TDR
	Type	Switched Mode
	Electrical Phase	3
	Number of Outputs	1
	Input Voltage	340 → 550 V ac, 480 → 780 V dc
	AC or DC Output Voltage	dc
	Output Voltage	24V dc
	Output Current	20A
	Dimensions	85.5 x 128.5 x 125.2mm
	Width	85.5mm
	Height	125.2mm
	Depth	128.5mm
	Load Regulation	±1%
	MTBF	391.7kh
	Special Features	Overvoltage and Short Circuit Protection
	Mounting Type	DIN Rail Mount
	Standards Met	RoHS Compliant, TUV EN 60950-1, UL 508
	Maximum Temperature	+70°C
	Minimum Temperature	-30°C
	Output Voltage Adjustment Range	24 → 28V
	Ripple And Noise	150mV Pk-Pk

	Select all
	Brand MEAN WELL
	Series TDR
	Type Switched Mode
	Electrical Phase 3
	Number of Outputs 1
	Input Voltage 340 → 550 V ac, 480 → 780 V dc
	AC or DC Output Voltage dc
	Output Voltage 24V dc
	Output Current 20A
	Dimensions 85.5 x 128.5 x 125.2mm
	Width 85.5mm
	Height 125.2mm
	Depth 128.5mm
	Load Regulation ±1%
	MTBF 391.7kh
	Special Features Overvoltage and Short Circuit Protection
	Mounting Type DIN Rail Mount
	Standards Met RoHS Compliant, TUV EN 60950-1, UL 508
	Maximum Temperature +70°C
	Minimum Temperature -30°C
	Output Voltage Adjustment Range 24 → 28V
	Ripple And Noise 150mV Pk-Pk

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