# Power adapter/inverter MEAN WELL MPM-90-48ST 90 W, indoor, 48 V input 80–264 V, black, 52×109×33.5 mm

**URL:** https://aio.lv/en/product--mean-well-mpm-90-48st--3944233
**Data updated:** 2026-01-06 11:14 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** MPM-90-48ST
**EAN:** 4021087069724
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.49 €
**Prices and availability valid until:** 2026-07-25 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-mpm-90-48st--3944233

## 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 MPM-90-48ST is a 90 W indoor power adapter/inverter designed for universal use. It accepts an input voltage of 80–264 V and provides a 48 V output. The unit is black and compact (52 × 109 × 33.5 mm). Certified to EN/UL 60601 with 2×MOPP isolation and RoHS compliant. Supplied as a single piece, suitable for medical and industrial applications requiring reliable isolated power.

## Long description

MPM-90-48ST is a 90 W indoor AC/DC PCB-mount medical-grade power adapter from MEAN WELL. The compact module (52 × 109 × 33.5 mm) accepts a universal input of 80–264 VAC and provides a regulated 48 V output. Designed to meet EN/UL 60601 requirements, the unit offers 2×MOPP isolation, low no-load power consumption (\<0.1 W), high efficiency (up to 93%), 4 kVAC isolation and RoHS compliance for use in medical and industrial environments.
Advantages
The MPM-90-48ST combines a small footprint with high power density and efficient thermal dissipation, allowing installation on PCBs where space is limited. It delivers low standby consumption and high conversion efficiency to reduce heat and energy loss. The module meets medical safety standards (EN/UL 60601) with 2×MOPP isolation and ultra-low leakage current, and provides robust EMC and vibration resistance suitable for demanding applications.
Suitable for
Medical equipment requiring isolated 48 V power
Industrial control systems and instrumentation
PCB-mounted power solutions in space-constrained designs
Key specifications
Output power: 90 W
Input voltage: 80–264 VAC
Output voltage: 48 V
Dimensions: 52 × 109 × 33.5 mm
Efficiency: up to 93%
No-load power consumption: \<0.1 W
Isolation: 4 kVAC; 2×MOPP (meets EN/UL 60601)
Certification: EN/UL 60601, RoHS compliant
How to use
Mount the MPM-90-48ST on the target PCB according to the manufacturer’s recommended footprint and ensure proper clearance for thermal dissipation. Connect the AC input (80–264 VAC) and take the regulated 48 V output from the designated terminals. Verify polarity and secure all connections. Follow applicable installation rules for medical equipment, including grounding practices and creepage/clearance requirements as specified in EN/UL 60601.
Usage recommendations
Use the module within the specified input and output ratings and in an environment that allows adequate cooling. For medical applications, maintain the required creepage/clearance distances on the PCB and follow local regulations for leakage current and patient-applied equipment. Refer to MEAN WELL’s datasheet for detailed mounting, thermal and EMC guidance.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 80 - 264 |
| Output voltage | 48 |
| Input frequency | 47 - 63 |
| Output current | 0.94 A |
| Output power | 90 W |
| Protection class | II |
| Power current type | AC-to-DC |
| Adjustable output voltage | No |

### Power

| Feature | Value |
|---|---|
| Efficiency | 93 % |
| Power protection features | Short circuit, Overload, Over voltage |

### Performance

| Feature | Value |
|---|---|
| Purpose | Universal |

### Design

| Feature | Value |
|---|---|
| Product colour | Black |

### Certificates

| Feature | Value |
|---|---|
| Certification | EN/UL 60601, 2xMOPP |
| Compliance certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.219 kg |
| Height | 33.5 mm |
| Width | 52 mm |
| Depth | 109 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | -40 - 85 |
| Storage temperature (T-T) | 20 - 90 |
| Operating temperature (T-T) | -30 - 80 |

### Other features

| Feature | Value |
|---|---|
| Power supply type | Indoor |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the MEAN WELL MPM-90-48ST 90 W power adapter/inverter 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 — 4 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: efficiency, weight, product colour, 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 MPM-90-48ST 90 W power adapter/inverter?

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/3944233/64237595_large.webp