# Power adapter MEAN WELL MPM-45-12ST, indoor 45 W, input 80–264 V, black, 12 V output

**URL:** https://aio.lv/en/product--mean-well-mpm-45-12st--3714992
**Data updated:** 2026-01-06 11:10 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** MPM-45-12ST
**EAN:** 4021087069519
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 37.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-mpm-45-12st--3714992

## 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-45-12ST is an indoor power adapter delivering 45 W with a universal input voltage range of 80–264 V. Compact black unit (52 × 109 × 33.5 mm) designed for supplying 12 V equipment. RoHS-compliant and sold as a single piece. Suitable for powering LED drivers, routers, CCTV modules and other low-voltage devices requiring stable 12 V DC supply.

## Long description

MEAN WELL MPM-45-12ST is a compact indoor AC/DC PCB-mount medical-grade power adapter that delivers 45 W of output power at 12 V DC. The unit accepts a universal input voltage from 80 to 264 VAC and is designed for applications that require a small-size, high-density power source with medical safety standards including IEC EN 60601-1 and ANSI/AAMI ES60601-1 (version 3) compliance, 2 x MOPP protection and ultra-low leakage current. The adapter offers high efficiency up to 92.5%, very low no-load consumption (\<0.1 W), 4 kVAC isolation and robust EMC performance.
Advantages
The MPM-45-12ST combines compact dimensions and high power density (87 x 52 x 29.5 mm nominal PCB-mount size) to save space in equipment designs. It achieves high conversion efficiency (up to 92.5%) and keeps standby power consumption below 0.1 W. Built to medical-grade standards with double insulation (Class II, no FG), 4 kVAC isolation and 2 x MOPP, it provides reliable safety and low leakage for medical and sensitive electronic applications. Additional features include wide input range (80–264 VAC), good thermal dissipation and enhanced vibration resistance.
Suitable for
 Powering 12 V DC medical and laboratory equipment requiring medical-grade safety
 Supplying LED drivers, CCTV modules and networking devices such as routers
 Embedded and PCB-mounted systems where compact size and low standby loss are needed
Key specifications
 Output power: 45 W
 Output voltage: 12 V DC
 Input voltage: 80–264 VAC
 Efficiency: up to 92.5%
 No-load power consumption: \<0.1 W
 Isolation voltage: 4 kVAC
 Protection: Class II double insulation (no FG), 2 x MOPP
 Typical size (PCB-mount type): 87 x 52 x 29.5 mm
 MPN/EAN: MPM-45-12ST / 4021087069519
How to use
Integrate the MPM-45-12ST onto the target PCB or mounting arrangement following the manufacturer’s mechanical and footprint recommendations. Connect the AC input to an appropriate mains connector rated for the stated input range (80–264 VAC) and route the 12 V DC output to the load using suitable wiring and polarity. Ensure adequate ventilation and thermal management around the module and observe isolation and creepage distances required for medical-grade installations. Follow local wiring regulations and the device safety instructions when installing into equipment.
Usage recommendations
Use the adapter in indoor, dry environments and avoid exposing it to excessive vibration beyond the specified 2–5G rating. For medical installations, verify compliance with system-level safety requirements and maintain proper grounding and separation as required by IEC/ANSI standards.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 80 - 264 |
| Output voltage | 12 |
| Input frequency | 47 - 63 |
| Output current | 3.75 A |
| Output power | 45 W |
| Protection class | II |
| Power current type | AC-to-DC |
| Adjustable output voltage | No |

### Power

| Feature | Value |
|---|---|
| Efficiency | 91.5 % |
| 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 |

### Technical details

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.206 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-45-12ST power adapter 45 W cost, and is it available for purchase?

The price is 45.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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-45-12ST power adapter 45 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/3714992/58542970_large.webp