# Power adapter/inverter Mean Well RSD-300E-48 — 300 W, input 25.2–46.8 V, output 48 V, dimensions 97×216×40 mm

**URL:** https://aio.lv/en/product--mean-well-rsd-300e-48--3717097
**Data updated:** 2026-03-27 13:20 (EET)
**Category:** Power Inverters
**Manufacturer:** mean well
**Manufacturer code:** RSD-300E-48
**EAN:** 4021087057721
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 189.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 156.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-rsd-300e-48--3717097

## 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

Mean Well RSD-300E-48 is a 300 W power adapter/inverter designed for DC input systems with a wide input range of 25.2–46.8 V and a fixed 48 V output. Compact metal housing (97×216×40 mm) supports industrial and telecom applications requiring regulated 48 V supply. Certified RoHS; pack quantity 12. Suitable for charging, powering 48 V equipment, or DC-DC conversion in vehicles and stationary installations.

## Long description

Mean Well RSD-300E-48 is a 300 W DC-DC enclosed converter that provides a regulated 48 V output from a wide DC input range. The unit accepts nominal inputs within the specified range for vehicle and stationary installations and delivers a stable +48 V output at up to 5.7 A. Housed in a compact metal enclosure with dimensions 97×216×40 mm, this converter is designed for industrial and telecom applications where reliable 48 V power is required. The design includes high isolation between input and output and meets relevant safety and environmental directives.
Advantages
The converter supports a wide DC input window which simplifies integration with various battery and DC-supply systems. Its compact metal housing offers mechanical robustness and effective thermal conduction for continuous 300 W operation. The device complies with RoHS and railway standard EN50155, and features high input-output isolation to enhance system protection and reduce interference risks.
Suitable for
 Powering 48 V telecom equipment and network devices
 Charging and maintaining 48 V battery systems in vehicles and stationary setups
 DC-DC conversion in rolling stock and railway applications compliant with EN50155
 Industrial control systems and automation panels requiring regulated 48 V supply
Key specifications
 Output power: 300 W continuous
 Input voltage range: 25.2–46.8 V nominal (typical operating window noted)
 Output voltage: +48 V DC at up to 5.7 A
 Isolation: 4000 V DC input-to-output isolation
 Form factor: enclosed metal housing, dimensions 97 × 216 × 40 mm
 Standards: conforms to RoHS and railway standard EN50155
How to use
Install the converter in a ventilated location and secure it using appropriate mounting points compatible with the metal enclosure. Connect the DC input wiring observing polarity and ensuring the input voltage stays within the specified range. Connect the 48 V output to the load with suitable cabling and overcurrent protection sized for the nominal output current. Verify correct grounding and insulation before applying power. Allow the device to reach stable operating temperature and check output voltage under load to confirm proper operation.
Usage recommendations
To maximize service life and ensure reliable performance, avoid sustained operation above rated ambient temperatures, provide adequate ventilation or forced cooling in confined installations, and protect the unit from voltage transients and reversed polarity. Regularly inspect connections and consider adding upstream transient suppression for installations in environments with frequent electrical disturbances.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.19 kg |
| Height | 40 mm |
| Width | 97 mm |
| Depth | 216 mm |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 12 pc(s) |

### Features

| Feature | Value |
|---|---|
| Input voltage | 25.2 - 46.8 |
| Output voltage | 48 |
| Output power | 300 W |

### Sustainability

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

## FAQ

### How much does the Mean Well RSD-300E-48 power adapter/inverter 300 W cost, and is it available for purchase?

The price is 189.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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, input voltage, output voltage, 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 Mean Well RSD-300E-48 power adapter/inverter 300 W?

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/3717097/58544535_large.webp