# Power adapter MEAN WELL MPM-90-12ST 90 W indoor 12 V black, input 80–264 V, 2xMOPP, EN/UL 60601

**URL:** https://aio.lv/en/product--mean-well-mpm-90-12st--3714987
**Data updated:** 2026-01-06 11:10 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** MPM-90-12ST
**EAN:** 4021087069694
**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-90-12st--3714987

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

MEAN WELL MPM-90-12ST is a 90 W indoor power adapter delivering 12 V output. It accepts a wide AC input range of 80–264 V and features medical-grade safety with 2xMOPP and EN/UL 60601 certification. Compact black housing (52 × 109 × 33.5 mm) suits equipment requiring reliable low-voltage supply. Ideal for medical, industrial or professional electronics where certified isolation and RoHS compliance are needed.

## Long description

MEAN WELL MPM-90-12ST is a compact 90 W AC/DC PCB-mount medical-grade power supply that provides a 12 V DC output. The module accepts a wide input range of 80–264 VAC, delivers high efficiency (up to 93%), and is designed with double insulation and 2 x MOPP protection in accordance with IEC/EN 60601 and ANSI/AAMI ES60601 requirements. The unit offers low no-load power consumption (\<0.1 W), 4 kVAC isolation, model-dependent anti-vibration resistance (II2~5G), and high EMC performance, making it suitable for equipment requiring certified isolation and low leakage current.
Advantages
The power adapter combines a small footprint with high power density, ensuring reliable 12 V output at up to 90 W while occupying minimal space. Medical safety features include 2 x MOPP, ultra-low leakage current and compliance with EN/UL 60601 standards. Additional benefits are wide input voltage compatibility (80–264 VAC), high efficiency (up to 93%) that reduces heat dissipation, and built-in protection measures such as reinforced insulation and 4 kVAC isolation.
Suitable for
Medical devices and equipment requiring 2 x MOPP isolation
Professional and laboratory electronics needing a certified 12 V power source
Industrial control systems with wide AC input requirements
Key specifications
Output: 12 V DC, up to 90 W
Input voltage: 80–264 VAC
Efficiency: up to 93%
No-load power consumption: \< 0.1 W
Insulation/isolation: double insulation, 4 kVAC isolation, 2 x MOPP
Form factor: PCB-mount module, compact dimensions
Standards: IEC/EN 60601, ANSI/AAMI ES60601 compliant
Compliance: RoHS
How to use
Mount the MPM-90-12ST on the host PCB following the manufacturer’s recommended footprint and soldering guidelines. Connect the AC input within the specified 80–264 VAC range and route the 12 V DC output to the target circuitry, observing polarity and any filtering or decoupling required by the end device. Ensure adequate ventilation or heatsinking as per system thermal design to maintain rated performance and longevity.
Usage recommendations
Install the module in equipment that requires medical-grade isolation and follow applicable medical device EMC and safety integration practices. Verify creepage and clearance in the final assembly, use proper grounding where required by local standards, and test leakage current to confirm compliance with applicable EN/UL 60601 limits.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 80 - 264 |
| Output voltage | 12 |
| Input frequency | 47 - 63 |
| Output current | 3.75 A |
| Output power | 90 W |
| Protection class | II |
| Power current type | AC-to-DC |
| Adjustable output voltage | No |

### Power

| Feature | Value |
|---|---|
| Efficiency | 92 % |
| Power protection features | Over voltage, Overload, Short circuit |

### Performance

| Feature | Value |
|---|---|
| Purpose | Universal |
| Compatibility | EN/UL 60601, 2xMOPP |

### 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-90-12ST power adapter/inverter MPM-90-12ST 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 — 9 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 24.07.2026 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-90-12ST power adapter/inverter MPM-90-12ST?

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/3714987/64225219_large.webp