# Power Supply Unit MEAN WELL WDR-240-48

**URL:** https://aio.lv/en/product--mean-well-wdr-240-48--1620815
**Data updated:** 2025-12-29 07:43 (EET)
**Category:** Other goods
**Manufacturer:** mean well
**Manufacturer code:** WDR-240-48
**EAN:** 4021087017749
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 145.95 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 120.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-wdr-240-48--1620815

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The MEAN WELL WDR-240-48 is a 240 W metallic power supply unit with an AC input voltage range of 180 - 550 V and a frequency of 47 - 63 Hz. It features passive cooling and has a compact size of 63 mm width, 113.5 mm depth, and 125.2 mm height. With a mean time between failures (MTBF) of 141100 hours and a rise time of 150 ms, this unit ensures reliable performance for various applications.

## Long description

The MEAN WELL WDR-240-48 is a 240 W metallic DIN-rail power supply designed for industrial and automation applications. It accepts a wide AC input range (180–550 V, 47–63 Hz), provides a stable 48 V output, and uses passive cooling. The compact unit (63 mm × 113.5 mm × 125.2 mm) includes LED power indication and is built to meet reliability requirements with an MTBF of 141,100 hours and a rise time of 150 ms.
Advantages
The power supply features universal AC input and active power factor correction for improved efficiency on mains. It is mountable on TS-35/7.5 or 15 DIN rails and has a fixed switching frequency of 100 kHz. A 100% full-load burn-in test is performed at the factory, and the front LED indicates power-on status.
Suitable for
 Industrial control panels and automation systems
 DIN-rail installations in switchgear cabinets
 Telecommunications and network equipment requiring 48 V
 Backup and auxiliary power for machinery and instruments
Key specifications
 Output power: 240 W
 Output voltage: 48 V
 Input voltage: 180–550 V AC, 47–63 Hz
 Cooling: passive
 Dimensions (W × D × H): 63 × 113.5 × 125.2 mm
 Mounting: DIN rail TS-35/7.5 or 15
 Switching frequency: fixed 100 kHz
 MTBF: 141,100 hours
 Rise time: 150 ms
 LED: power-on indicator
How to use
Mount the unit on a TS-35/7.5 or TS-35/15 DIN rail in a well-ventilated enclosure. Connect the AC mains within the specified 180–550 V range and observe proper grounding. Connect the 48 V DC output to the load using appropriate wiring and overcurrent protection. Verify LED power indication after energizing and confirm output voltage before connecting sensitive equipment.
Usage recommendations
Install the MEAN WELL WDR-240-48 in environments within the specified input range and ambient temperature limits, provide adequate space for passive cooling, and use correct wiring and protective devices to ensure reliable long-term operation.

## Specifications

| Feature | Value |
|---|---|
| Weight | 1.06 kg |
| Mean time between failures (MTBF) | 141100 h |
| Operating relative humidity (H-H) | 20 - 95 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | -30 - 70 |
| Storage relative humidity (H-H) | 10 - 95 |
| Height | 125.2 mm |
| Width | 63 mm |
| Depth | 113.5 mm |
| Product colour | Metallic |
| Efficiency | 91 % |
| Hold time | 18 ms |
| Rise time | 150 ms |
| Cooling type | Passive |
| Power protection features | Overheating, Short circuit, Overload, Over voltage |
| AC input frequency | 47 - 63 |
| AC input voltage | 180 - 550 |
| Total power | 240 W |

## FAQ

### How much does the Power Supply Unit MEAN WELL WDR-240-48 cost, and is it available for purchase?

The price is 145.95 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 Thursday 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Power Supply Unit MEAN WELL WDR-240-48 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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

## Image

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