# Power Adapter MEAN WELL DDR-120B-48

**URL:** https://aio.lv/en/product--mean-well-ddr-120b-48--4331208
**Data updated:** 2025-12-29 16:02 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** DDR-120B-48
**EAN:** 4021087051019
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 112.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 93.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-ddr-120b-48--4331208

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The MEAN WELL DDR-120B-48 is a reliable power adapter with an input voltage range of 16.8 - 33.6 V and an output power of 120 W at 48 V. It is RoHS compliant and features a compact design with dimensions of 32 mm width, 102 mm depth, and 125.2 mm height. Ideal for various applications, this adapter is sold in packs of 28 units, ensuring you have the power you need for your projects.

## Long description

The MEAN WELL DDR-120B-48 is an ultra-slim industrial DC-DC DIN-rail converter designed for applications requiring a regulated 48 Vdc output from a wide input range of 16.8–33.6 Vdc. With a rated output of 48 V at 2.5 A (120 W) in a compact module, it fits standard DIN-rail installations and complies with RoHS requirements.
Advantages
Compact DIN-rail housing with a slim 32 mm width conserves panel space while delivering up to 120 W output. The converter accepts a wide input voltage range, allowing compatibility with various battery and intermediate bus systems. Its industrial design supports reliable performance in control cabinets and automation equipment.
Suitable for
Industrial control cabinets and automation systems
Telecom and network equipment requiring 48 V rails
Battery-backed systems and DC bus converters
Distributed power architectures in machinery and instruments
Key specifications
Model: MEAN WELL DDR-120B-48 (MPN: DDR-120B-48)
Input voltage: 16.8–33.6 Vdc
Output: 48 Vdc, 2.5 A (120 W)
Dimensions: 32 mm (W) × 102 mm (D) × 125.2 mm (H)
Compliance: RoHS
Packaging: sold in packs of 28 units
How to use
Mount the DDR-120B-48 on a standard DIN rail inside the control cabinet. Connect the input to a suitable 16.8–33.6 Vdc source observing correct polarity, and connect the 48 Vdc output to the load, ensuring the load does not exceed 2.5 A. Provide adequate ventilation and follow local wiring and safety regulations when integrating the converter into equipment.
Usage recommendations
For stable operation, avoid sustained operation at maximum rated current without verifying system thermal conditions. Use proper fusing on the input and output circuits and verify compatibility with upstream power sources and downstream loads before installation.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 16.8 - 33.6 |
| Output voltage | 48 |
| Output power | 120 W |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.51 kg |
| Height | 125.2 mm |
| Width | 32 mm |
| Depth | 102 mm |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 28 pc(s) |

## FAQ

### How much does the Power Adapter MEAN WELL DDR-120B-48 cost, and is it available for purchase?

The price is 112.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 55 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All mean well products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized mean well service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Power Adapter MEAN WELL DDR-120B-48?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/4331208/64275944_large.webp