# MEAN WELL RT-50B power adapter 50 W input 88-264 V output 12 V

**URL:** https://aio.lv/en/product--mean-well-rt-50b--3773058
**Data updated:** 2026-01-06 11:11 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** RT-50B
**EAN:** 4021087057387
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 31.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-rt-50b--3773058

## 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 RT-50B is a reliable power adapter with an input voltage range of 88-264 V and an output power of 50 W at 12 V. It is compact with dimensions of 97 mm width, 99 mm depth, and 36 mm height. This adapter is RoHS compliant, ensuring it meets environmental standards. Ideal for various applications requiring stable power supply.

## Long description

The MEAN WELL RT-50B is an AC-DC enclosed power supply offering triple outputs: +5 Vdc at 4 A, +12 Vdc at 2 A and -12 Vdc at 0.5 A. It accepts a wide input voltage range from 88–264 V AC and delivers a combined output power suitable for equipment that requires multiple low-voltage rails in a compact form factor. The unit measures 97 mm (W) × 99 mm (D) × 36 mm (H) and complies with RoHS environmental requirements.
Advantages
The RT-50B provides stable, regulated outputs across three rails to power mixed-voltage circuits without needing separate supplies. Its wide input range (88–264 V) makes it compatible with international mains voltages. The enclosed metal housing offers protection and compact dimensions save space in equipment racks or enclosures. RoHS compliance ensures the product meets common environmental standards.
Suitable for
 Embedded systems and industrial control boards that need +5 V, +12 V and -12 V rails
 Communication equipment and instrumentation with mixed-voltage requirements
 Prototyping workbenches and small machines requiring a compact multi-rail supply
Key specifications
 Model: MEAN WELL RT-50B (MPN: RT-50B)
 Input voltage: 88–264 V AC
 Outputs: +5 Vdc @ 4 A, +12 Vdc @ 2 A, -12 Vdc @ 0.5 A
 Total output power: 50 W (12 V output rated within this power)
 Dimensions: 97 mm × 99 mm × 36 mm
 Compliance: RoHS
 Brand: MEAN WELL
 EAN: 4021087057387
How to use
Mount the enclosed power supply inside a suitably ventilated equipment enclosure or rack. Connect the AC mains input (88–264 V AC) following local wiring regulations and the product’s polarity markings. Wire the DC outputs to the target circuit ensuring each rail (+5 V, +12 V, -12 V) is connected to the correct supply input and that the combined load does not exceed the rated currents. Observe proper grounding and add fuses or protection devices as required by your application.
Usage recommendations
Ensure the ambient temperature and ventilation comply with the manufacturer’s guidelines; avoid placing the unit near heat sources. Verify total current draw across all outputs and provide appropriate surge protection on the AC input. For critical applications, consider adding output filtering or additional protection on sensitive circuits.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 88 - 264 |
| Output voltage | 12 |
| Output current | 0.5 A |
| Output power | 50 W |

### Certificates

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.42 kg |
| Height | 36 mm |
| Width | 97 mm |
| Depth | 99 mm |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 45 pc(s) |

## FAQ

### How much does the Power adapter MEAN WELL RT-50B cost, and is it available for purchase?

The price is 37.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 RT-50B?

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/3773058/64227566_large.webp