# Buffered switching power supply PULSAR HPSB-24V2A-B 27.6V 2A for 2×7Ah batteries

**URL:** https://aio.lv/en/product--pulsar-hpsb-24v2a-b--11855621
**Data updated:** 2026-03-09 17:31 (EET)
**Category:** UPS
**Manufacturer:** PULSAR
**Manufacturer code:** HPSB-24V2A-B
**EAN:** 5902135319550
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 63.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 52.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pulsar-hpsb-24v2a-b--11855621

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

PULSAR HPSB-24V2A-B is a buffered switching power supply providing 27.6V DC at 2A and designed to work with two 7Ah batteries. It functions as a mains-powered charger and backup supply for security systems, access control, alarm panels and other low-voltage devices, ensuring uninterrupted power and battery charging in case of mains failure.

## Long description

PULSAR HPSB-24V2A-B is a buffered switching power supply that delivers a stabilized 27.6 V DC output at up to 2 A and is configured for use with two 7 Ah lead-acid batteries. Designed for continuous mains operation with battery backup, the unit provides charging and uninterrupted power to low-voltage devices such as alarm panels, access control units and other security system components. The device integrates power conversion, battery charging and automatic switchover to battery supply in the event of mains failure, ensuring continuity of operation for connected equipment.
Advantages
The PULSAR HPSB-24V2A-B combines a compact switching converter with a buffered output and a dedicated charging circuit for two series-connected batteries, offering efficient energy conversion, stable voltage regulation and controlled battery charging. Its automatic load transfer preserves the supply to critical devices during mains interruptions, while the buffered design minimizes voltage dips and reduces stress on connected electronics. The product is engineered for reliable, low-noise operation and straightforward integration into existing 24 V systems.
Suitable for
 Alarm control panels and security system components
 Access control readers, locks and controllers
 Small CCTV installations and peripheral devices requiring 24–27.6 V DC
 Backup power for low-power industrial or telecommunications equipment
Key specifications
 Output voltage: 27.6 V DC (nominal)
 Maximum output current: 2 A
 Battery configuration: designed for two 7 Ah lead-acid batteries
 Functionality: mains-powered operation with automatic battery backup and charging
 Topology: switching (SMPS) buffered power supply
 Intended applications: low-voltage security and access control systems
How to use
Install the unit in a dry, ventilated enclosure close to the devices it will supply. Connect the mains input according to local electrical regulations and wire the two matching 7 Ah batteries in the configuration recommended by the manufacturer. Connect the load to the DC output terminals, observing correct polarity. On mains availability the power supply provides regulated output and charges the batteries; upon mains loss it automatically transfers the load to battery supply. Periodically check battery condition and terminal connections to maintain reliable operation.
Usage recommendations
Use compatible sealed lead-acid batteries of the specified capacity and follow battery maintenance guidelines. Ensure proper ventilation and avoid placing the unit near heat sources. Verify load current does not exceed the 2 A output rating and use appropriate fusing or protection on both mains and DC outputs as required by local standards.

## FAQ

### How much does the PULSAR HPSB-24V2A-B buffered switching power supply cost, and is it available for purchase?

The price is 63.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 97 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 14.07.2026 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/11855621/67253920_large.webp