# MEAN WELL RPS-400-12-SF power adapter 400 W 12 V input 80-264 V

**URL:** https://aio.lv/en/product--mean-well-rps-400-12-sf--3758974
**Data updated:** 2026-01-06 11:11 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** RPS-400-12-SF
**EAN:** 4021087034067
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 155.99 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 128.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-rps-400-12-sf--3758974

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.89 EUR |
| Courier delivery to door | 05.08.2026 | 4.99 EUR |

## Summary description

The MEAN WELL RPS-400-12-SF is a reliable power adapter with an output of 400 W and a voltage of 12 V. It operates on an input voltage range of 80 - 264 V and is compliant with RoHS standards. Its compact dimensions of 86 mm width, 130 mm depth, and 66.5 mm height make it suitable for various applications. Ideal for powering devices that require stable and efficient power supply.

## Long description

The MEAN WELL RPS-400-12-SF is an open-frame AC-DC medical power supply delivering 12 V DC at 33.3 A (400 W). It accepts a wide input voltage range of 80–264 V AC, includes EN60601 medical safety with 2xMOPP isolation, and is fitted with a side fan and cover for cooling. The unit is RoHS compliant and has compact dimensions suitable for integration into medical and industrial equipment.
Advantages
This power adapter provides a stable 12 V/33.3 A output with 400 W continuous power in an open-frame design, meeting EN60601 medical safety requirements with 2xMOPP isolation. The wide 80–264 V input range allows global operation without additional conversion. An integrated side fan with cover improves thermal performance while the compact footprint (86 × 130 × 66.5 mm) simplifies installation in constrained spaces.
Suitable for
 Medical devices requiring EN60601-compliant power sources
 Diagnostics and laboratory equipment
 Industrial control systems and embedded applications
 Equipment needing a compact 12 V / 400 W supply
Key specifications
 Output: 12 V DC, 33.3 A (400 W)
 Input voltage: 80–264 V AC
 Safety: EN60601 with 2xMOPP isolation
 Cooling: side fan with cover
 Configuration: open-frame
 Compliance: RoHS
 Dimensions (W×D×H): 86 × 130 × 66.5 mm
 Brand / Model: MEAN WELL RPS-400-12-SF (MPN: RPS-400-12-SF, EAN: 4021087034067)
How to use
Install the open-frame power supply in a ventilated enclosure that allows airflow to and from the side fan. Connect the AC input to a properly fused mains source within 80–264 V AC, observing correct polarity and protective earth connections. Route the 12 V DC output to the load using appropriately rated cables and connectors. Ensure installation follows applicable medical and local electrical standards and verify output voltage under load before connecting sensitive equipment.
Usage recommendations
Maintain clear airflow around the side fan, avoid obstructing the cover, and operate the unit within specified ambient temperature and ventilation limits. For medical applications, perform installation and safety checks according to EN60601 and local regulations; ensure regular maintenance of the cooling fan to preserve reliable operation.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 80 - 264 |
| Output voltage | 12 |
| Output current | 33.3 A |
| Output power | 400 W |

### Certificates

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.64 kg |
| Height | 66.5 mm |
| Width | 86 mm |
| Depth | 130 mm |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 24 pc(s) |

## FAQ

### How much does the power adapter MEAN WELL RPS-400-12-SF cost, and is it available for purchase?

The price is 155.99 € (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 31.07.2026 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-400-12-SF?

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/3758974/64227420_large.webp