# Power Adapter MEAN WELL AD-55A

**URL:** https://aio.lv/en/product--mean-well-ad-55a--1621320
**Data updated:** 2025-12-29 07:43 (EET)
**Category:** Other goods
**Manufacturer:** mean well
**Manufacturer code:** AD-55A
**EAN:** 4021087017695
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.90 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 34.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-ad-55a--1621320

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The MEAN WELL AD-55A is a reliable power adapter with an input voltage range of 88-264 V and an output power of 55 W. It provides a stable output voltage of 13.4 V. This adapter is RoHS compliant, ensuring it meets environmental standards. With dimensions of 97 mm in width, 159 mm in depth, and 38 mm in height, it is compact and easy to integrate into various applications. Each pack contains 24 units, making it ideal for bulk purchases.

## Long description

The MEAN WELL AD-55A is an AC-DC enclosed power adapter with an integrated UPS function that delivers a combined output: 13.8 V DC at 4 A plus 13.4 V DC at 0.23 A. It accepts a wide input voltage range of 88–264 V AC and provides up to 55 W output power in a compact metal enclosure (97 mm × 159 mm × 38 mm). The unit is RoHS compliant and is supplied in packs of 24 units, suitable for installations that require multiple power modules.
Advantages
The AD-55A combines a primary 13.8 Vdc/4 A output with a secondary 13.4 Vdc/0.23 A output and includes an uninterruptible power supply function for uninterrupted operation of connected equipment. Its wide input range ensures compatibility with various mains supplies, while the enclosed metal housing offers protection and simplified mounting. Compliance with RoHS indicates reduced hazardous substances.
Suitable for
 Security and access control systems
 Telecommunications and network devices
 Small industrial control equipment
 Environments requiring compact UPS-capable power modules
Key specifications
 Brand: Mean Well
 Model (MPN): AD-55A
 EAN: 4021087017695
 Input voltage: 88–264 V AC
 Output: 13.8 V DC @ 4 A and 13.4 V DC @ 0.23 A
 Total output power: 55 W
 Enclosure: enclosed metal housing
 Dimensions: 97 × 159 × 38 mm (W × D × H)
 RoHS compliant
 Pack quantity: 24 units per pack
How to use
Install the AD-55A in a well-ventilated location and secure it according to the mounting instructions for enclosed power supplies. Connect the AC input to a properly rated mains source within 88–264 V AC. Connect the primary 13.8 Vdc output to the main load and the 13.4 Vdc auxiliary output to the secondary device as required. Verify polarity and ensure correct wiring before powering on. Observe manufacturer guidance for fusing and grounding.
Usage recommendations
For reliable operation, allow adequate airflow around the enclosure, avoid mounting near heat sources, and size cabling and protective fuses according to the currents of both outputs. Use the pack quantity option when deploying multiple identical power modules to simplify inventory and maintenance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.5083 kg |
| Height | 38 mm |
| Input voltage | 88 - 264 |
| Output voltage | 13.4 |
| Width | 97 mm |
| Depth | 159 mm |
| Output current | 0.23 A |
| Output power | 55 W |
| Quantity per pack | 24 pc(s) |
| Compliance certificates | RoHS |

## FAQ

### How much does the Power Adapter MEAN WELL AD-55A cost, and is it available for purchase?

The price is 41.90 € (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 Monday 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, Bank cards on-line, Apple Pay, Google Pay. 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

### Where can I download the instructions for Power Adapter MEAN WELL AD-55A?

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/1621320/64167429_large.webp