# MEAN WELL RD-125B Dual Output Power Supply 125 W 176-264 V Input 5 V Output

**URL:** https://aio.lv/en/product--mean-well-rd-125b--1621588
**Data updated:** 2026-07-25 04:16 (EEST)
**Category:** Other goods
**Manufacturer:** mean well
**Manufacturer code:** RD-125B
**EAN:** 4021087014960
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-08-26 23:59
**Price without VAT (21%):** 45.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-rd-125b--1621588

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.08.2026 | free |
| Pickup points | 27.08.2026 | 1.79 EUR |
| Courier delivery to door | 27.08.2026 | 4.99 EUR |

## Summary description

The MEAN WELL RD-125B is a reliable 125 W dual output power supply and voltage converter designed for industrial and electronic applications. It operates with an input voltage range of 176 to 264 V and delivers a 5 V output. Built with RoHS compliance and high energy efficiency, this power adapter ensures stable performance for various electronic devices and systems. Ideal for professional installations requiring steady power conversion.

## Long description

The MEAN WELL RD-125B is a reliable 125 W dual output power supply and voltage converter designed for industrial and electronic applications. It operates with an input voltage range of 176 to 264 V and delivers a 5 V output alongside a 24 V output. Built with RoHS compliance and high energy efficiency, this power adapter ensures stable performance for various electronic devices and systems. Ideal for professional installations requiring steady power conversion.
Advantages
This dual output power supply provides stable and continuous power conversion for demanding industrial and electronic setups. Operating with free air convection, it maintains efficient thermal management without relying on noisy cooling fans, which helps improve overall reliability and longevity. The unit supports dual outputs at 5Vdc and 24Vdc, making it versatile for systems that require different voltage levels simultaneously. Built to meet stringent industry standards, it ensures safe and consistent performance under regular operating conditions.
Suitable for
Industrial automation and control systems
Electronic equipment requiring dual voltage rails
Professional electrical installations
Projects utilizing 5Vdc and 24Vdc components
When it may not be suitable
This power supply is not intended for consumer electronics that require portable or plug-and-play external adapters. It is also unsuitable for applications operating outside the specified input voltage range of 176 to 264 V or environments requiring active forced-air cooling systems.
Key specifications
Power rating: 125 W
Input voltage: 176 - 264 V
Output 1: 5 V DC at 10 A
Output 2: 24 V DC at 5 A
Cooling type: Free air convection
Design: Enclosed AC-DC dual output power supply
How to use
Mount the power supply securely within a suitable enclosure or professional rack that allows adequate space for free air convection. Ensure the mains input voltage matches the specified range of 176 to 264 V before connecting the wiring. Connect the AC input terminals to the correct line, neutral, and ground points following standard electrical safety guidelines. Attach your electronic loads to the appropriate 5Vdc and 24Vdc output terminals, ensuring polarity and current limits are respected. Verify all connections before powering on the system.
What to consider before purchase
Verify that your input voltage matches the 176-264 V range
Check if the dual output voltages of 5V and 24V match your device requirements
Ensure proper enclosure and ventilation for free air convection cooling
Confirm total power consumption does not exceed the 125 W limit
Usage recommendations
Always disconnect the mains power before performing any installation, wiring, or maintenance work. Ensure that the mounting location provides sufficient airflow for free air convection to prevent overheating during continuous operation.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.64 kg |
| Height | 38 mm |
| Input voltage | 176 - 264 |
| Output voltage | 5 |
| Width | 98 mm |
| Depth | 199 mm |
| Output power | 125 W |
| Quantity per pack | 20 pc(s) |
| Sustainability certificates | RoHS |

## FAQ

### How much does the MEAN WELL RD-125B Power Supply Unit cost, and is it available for purchase?

The price is 54.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 24.08.2026 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

### Where can I download the instructions for MEAN WELL RD-125B Power Supply Unit?

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/1621588/58026025_large.webp