# Switched-mode buffer power supply PULSAR HPSB-12V3A-B 12 V 3 A

**URL:** https://aio.lv/en/product--pulsar-29287--11073170
**Data updated:** 2026-02-23 13:21 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** PULSAR
**Manufacturer code:** 29287
**EAN:** 5902135319437
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pulsar-29287--11073170

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.06.2026 | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

Switched-mode buffer power supply PULSAR HPSB-12V3A-B delivers 12 V DC at up to 3 A and is designed to provide stable power with buffering for short interruptions. Suitable for powering small electronic devices, security systems, access control panels and CCTV components. Compact unit for DIN-rail or enclosure mounting, improving system reliability and protecting against brief mains outages.

## Long description

The PULSAR HPSB-12V3A-B switched-mode buffer power supply provides a regulated 12 V DC output with up to 3 A continuous current and includes an integrated buffer for short mains interruptions. Designed for reliable operation in security and electronic systems, this compact unit can be mounted on a DIN rail or inside an enclosure to deliver stable power to devices such as access control panels, alarm control units and CCTV cameras. The supply emphasizes energy-efficient switching regulation and buffering to improve overall system uptime during brief power dips.
Advantages
The PULSAR HPSB-12V3A-B combines a compact footprint with switching efficiency to reduce heat generation and energy loss. Its buffering capability preserves device operation through short mains interruptions and reduces the risk of false alarms or system resets. The unit is adaptable to standard mounting options, making integration into existing cabinets or DIN-rail systems straightforward. Built-in protections and regulated output support predictable behavior across a range of connected loads.
Suitable for
 Powering access control panels and electronic locks
 Supplying alarm control panels and sensors
 Feeding CCTV cameras and small video devices
 Backup buffering for small automation and monitoring equipment
Key specifications
 Output voltage: 12 V DC
 Maximum output current: 3 A
 Switched-mode (SMPS) topology for efficient regulation
 Integrated buffer function for short mains interruptions
 Compact design suitable for DIN-rail or enclosure mounting
 Typical protections: overload and short-circuit protection (functional characteristic)
How to use
Install the unit on a compatible DIN rail or secure it inside an electrical enclosure according to local wiring regulations. Connect the AC input to a suitable mains supply and the DC output to the device or distribution bus requiring 12 V. Ensure correct polarity on the DC terminals and verify that the total connected load does not exceed the 3 A maximum. If the system includes batteries or additional buffering, follow the manufacturer instructions for battery connection and charging management to maintain safe operation.
Usage recommendations
For reliable operation, place the power supply where it has adequate ventilation and is protected from moisture and dust. Periodically inspect wiring and terminal connections for corrosion or looseness. When used in security or CCTV systems, allow headroom between expected load and the 3 A limit to account for inrush currents and future expansions.

## FAQ

### How much does the PULSAR HPSB-12V3A-B 12V 3A buffer power supply cost, and is it available for purchase?

The price is 41.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 19.06.2026 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/11073170/65908320_large.webp