# Buffered Switching Power Supply PULSAR AD-55A 13.8V 3.5A (Mean Well AD-55A)

**URL:** https://aio.lv/en/product--pulsar-ad-55a--11649405
**Data updated:** 2026-02-17 11:02 (EET)
**Category:** Other goods
**Manufacturer:** PULSAR
**Manufacturer code:** AD-55A
**EAN:** 5901643192020
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 39.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pulsar-ad-55a--11649405

## 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

Buffered switching power supply PULSAR AD-55A (Mean Well AD-55A) delivers 13.8 V DC at up to 3.5 A. Designed for backup and continuous power applications, it provides regulated output suitable for CCTV, alarm systems, and other low-voltage devices. Compact form factor and switching topology offer efficient operation and stable voltage for reliable device performance.

## Long description

The Buffered Switching Power Supply PULSAR AD-55A 13.8V 3.5A (Mean Well AD-55A) is a compact DC power source that delivers a regulated 13.8 V output with a maximum current of 3.5 A. It combines switching topology with built-in buffering to provide stable voltage for continuous and backup power applications. The unit is intended for use with low-voltage devices where steady DC supply and short-term energy storage are required to maintain operation during transient disturbances or brief mains interruptions.
Advantages
The power supply offers efficient switching regulation that reduces heat generation and improves energy use compared with linear designs. Buffered output ensures that connected devices receive a stable voltage during short mains drops or switching events, reducing the risk of equipment resets. Its compact footprint enables installation in limited spaces or inside equipment enclosures, and the design supports continuous operation for monitoring and security systems.
Suitable for
CCTV cameras and video recorders
Alarm and access control systems
Low-voltage telecommunications and networking devices
Small automation controllers and sensors
Key specifications
Output voltage: 13.8 V DC regulated
Maximum output current: 3.5 A
Buffered/backup feature for short-term power hold-up
Switching power supply topology for higher efficiency
Compact physical design suitable for confined installations
How to use
Mount the unit according to the manufacturer’s mounting requirements and ensure proper ventilation around the enclosure. Connect the AC mains input to the designated terminals, observing local electrical regulations and safety practices. Attach the DC output leads to the device(s) requiring 13.8 V, respecting polarity. If the system includes batteries for extended backup, follow the battery connection and charging guidelines supplied by the equipment manufacturer. After connections are made, power the unit and verify the output voltage and load behaviour with appropriate test equipment.
Usage recommendations
Place the supply in a dry, dust-free environment away from direct heat sources. Regularly inspect wiring connections for corrosion or loosening, and confirm that ventilation openings remain unobstructed to maintain cooling efficiency.

## FAQ

### How much does the PULSAR AD-55A Buffered Switching Power Supply 13.8V 3.5A cost, and is it available for purchase?

The price is 47.99 € (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 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, 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 PULSAR 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 PULSAR 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

## Image

https://aio.lv/img/cache/product/11649405/67056888_large.webp