# Power adapter MEAN WELL RPS-120S-48, 120 W, 48 V output, 80–264 V input, RoHS, 50.8×76.2×28 mm

**URL:** https://aio.lv/en/product--mean-well-rps-120s-48--3800607
**Data updated:** 2026-03-27 13:20 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** RPS-120S-48
**EAN:** 4021087052177
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 57.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 47.51 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-rps-120s-48--3800607

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

MEAN WELL RPS-120S-48 is a compact 120 W power adapter with a 48 V DC output and wide input range of 80–264 V AC. Suitable for industrial and electronic applications requiring stable 48 V supply. Meets RoHS sustainability requirements. Dimensions 50.8 × 76.2 × 28 mm; sold in packs of 100 for volume installations and OEM use.

## Long description

MEAN WELL RPS-120S-48 is a compact AC-DC power adapter delivering 48 V DC at up to 2.5 A and a rated output power of 120 W. The unit accepts a wide input voltage range of 80–264 V AC, making it suitable for international mains environments. With its small footprint of approximately 50.8 × 76.2 × 28 mm (about 3 × 2 inches) and an open-frame design, this adapter is intended for integration into industrial equipment, electronic systems and OEM assemblies where a reliable 48 V supply is required. The product meets RoHS environmental standards and includes medical-grade isolation meeting EN 60601 with 2×MOPP where medical safety is specified.
Advantages
The adapter combines a high power density with a compact form factor, enabling space-saving installations without sacrificing output stability. A broad input range ensures compatibility with diverse mains sources, and the open-frame construction supports efficient heat dissipation in embedded applications. Compliance with RoHS and medical isolation standards provides regulatory alignment for healthcare and industrial systems.
Suitable for (tasks / use cases)
Industrial control systems requiring a regulated 48 V supply
Embedded and OEM electronic devices with constrained installation space
Laboratory equipment and medical devices needing medical-grade isolation
Telecommunications and networking equipment that operate on 48 V
Volume installations and panel integrations where units are installed in multiples
Key specifications
Output voltage: 48 V DC
Maximum output current: 2.5 A
Rated output power: 120 W
Input voltage range: 80–264 V AC
Form factor: open-frame AC-DC adapter
Size: approximately 50.8 × 76.2 × 28 mm (3 × 2 in)
Safety isolation: medical-grade isolation with 2×MOPP (meets EN 60601 where applicable)
Environmental compliance: RoHS
How to use
Mount the adapter on a suitable chassis or inside the device enclosure, ensuring adequate ventilation around the open-frame unit. Connect the AC input to a compatible mains source within the specified 80–264 V range using appropriate protective devices such as fuses or circuit breakers. Connect the 48 V DC output to the target load, observing correct polarity and using wiring rated for the expected current. Follow applicable safety standards and grounding practices during installation, and refer to system-level documentation for required creepage and clearance in the final assembly.
Usage recommendations
For reliable operation, provide free airflow around the adapter and avoid mounting near heat sources. Verify that the enclosure design maintains required creepage/clearance distances for medical applications and include additional filtering or surge protection if the installation is exposed to electrical transients. When deploying in volume installations, plan for service access and secure mounting to prevent vibration-related stress.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 80 - 264 |
| Output voltage | 48 |
| Output power | 120 W |

### Technical details

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.13 kg |
| Height | 28 mm |
| Width | 50.8 mm |
| Depth | 76.2 mm |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 100 pc(s) |

## FAQ

### How much does the Power adapter MEAN WELL RPS-120S-48 120 W cost, and is it available for purchase?

The price is 57.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 30.07.2026 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 RPS-120S-48 120 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/3800607/58566557_large.webp