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Mean Well DDR-30L-5 DC-DC Converter - 30W - 18~75V in 5V out

2:1 or 4:1 wide input range, fanless design, 4KVdc I/O isolation, ultra slim dimensions

SKU:

DDR-30L-5

Model

15W - 5V out - 9~36V in

SKU: DDR-15G-5

15W - 5V out - 18~75V in

SKU: DDR-15L-5

30W - 5V out - 9~36V in

SKU: DDR-30G-5

30W - 5V out - 18~75V in

SKU: DDR-30L-5

60W - 5V out - 9~36V in

SKU: DDR-60G-5

60W - 5V out - 18~75V in

SKU: DDR-60L-5

Product variants

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Description

Features

Width only 35mm (2SU)

DC output adjustable ( 10%)

4:1 ultra wide input range

No minimum load required

Protections: Short circuit / Overload / Over voltage /Input reverse polarity / Input under voltage protection

4KVdc I/O isolation(Reinforced isolation)

Can be installed on DIN rail TS-35/7.5 or 15

-40~+85°C wide working temperature

Cooling by free air convection

3 years warranty

General Specification

Over current protection	110%~150% rated output power;Protection type:Constant current limiting, recovers automatically after fault condition is removed
Over voltage protection	5V:5.75~7V ; 12V:13.8~16.2V ; 15V:17.25~20.25V ; 24V:28.8~34V; Protection mode:Shut down o/p voltage, re-power on to recover
REVERSE POLARITY	By internal MOSFET, no damage, recovers automatically after fault condition removed
Withstand voltage	I/P-O/P:4KVDC
Working temperature	-40~+85°C (Refer to ""Derating Curve"")
Safety standards	IEC 62368-1 (LVD) approved, Design refer to UL508
EMC standards	With external components Compliance to EN55032 Class B;EN61000-3-,3，EN61000-4-2,3,4,5,6,8
Dimension (LxWxH)(mm)	35 x 90 x 54.5 mm

Specifications

Brand

Mean Well
Series

DDR Series
Power Rating

30 Watt
Output Voltage

5 Volt
Rated Current

6 Ampere
Input Voltage

18V~75V
Standards Met

CE,EMC,UL
Operation Mode

Constant Voltage
Operating Temperature

-40°C~85°C
Warranty

2 Year
Length

9 cm
Width

5.45 cm
Height

3.5 cm
Weight

0.12 kg

File Downloads

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Frequently Asked Questions

Can I use the DDR-30L-5 to supply 5V logic power to microcontroller-based monitoring boards in an industrial panel?

Yes. The DDR-30L-5 delivers 5V at up to 6A (30W), which is enough to power several microcontroller boards, small single-board computers, or logic-level I/O modules. Its 18-75V DC input accepts 24V, 48V, or 72V panel buses, and the 4KVdc isolation protects sensitive digital circuits from bus-side noise.

Is the DDR-30L-5 a good choice for converting a 48V battery bus to 5V for USB charging stations in a mobile or marine installation?

Yes. With 30W at 5V and 6A output, it can supply multiple USB charging ports simultaneously. The 18-75V input range covers 48V battery systems (typical 40-58V range), and the -40°C to +85°C operating temperature makes it reliable in vehicle, marine, or off-grid environments.

Can the DDR-30L-5 power 5V LED indicator strips or small display panels in a DIN rail cabinet?

Yes. At 5V and 6A it provides enough current for addressable 5V LED strips or small LCD/OLED display modules used in status panels. The DIN rail mount and 35mm slim width make it easy to integrate into existing cabinets without taking up significant space.

Will the DDR-30L-5 handle the wide temperature swings of an outdoor telecom cabinet?

Yes. It is rated from -40°C to +85°C, which covers the full temperature range of outdoor telecom shelters and roadside cabinets in most climates. The fanless design eliminates filter maintenance concerns in dusty or sandy environments, though the unit should be housed in an appropriate enclosure since it does not carry an IP ingress rating.

How does the DDR-30L-5 differ from the DDR-30G-5 in terms of input range?

Both models output 5V at 6A (30W) and share the same DIN rail form factor. The DDR-30L-5 accepts 18-75V DC input, designed for 48V or 72V bus systems. The DDR-30G-5 accepts 9-36V DC input, designed for 12V or 24V bus systems. Choose based on your upstream DC bus voltage.

Model	Power	Voltage	Current	IP Rating
Mean Well DDR-30L-24 DC-DC Converter - 30W - 18~75V in 24V out	30W	24V	1.25A	Indoor	View
Mean Well DDR-30L-15 DC-DC Converter - 30W - 18~75V in 15V out	30W	15V	2A	Indoor	View
Mean Well DDR-30L-12 DC-DC Converter - 30W - 18~75V in 12V out	30W	12V	2.5A	Indoor	View

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