# Switching power supply No name MDR-40-12 12V 3.33A 40W DIN rail/LED driver

**URL:** https://aio.lv/en/product--no-name-mdr-40-12--11793393
**Data updated:** 2026-03-09 07:21 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** No name
**Manufacturer code:** MDR-40-12
**EAN:** 5901643192143
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 26.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--no-name-mdr-40-12--11793393

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

No name MDR-40-12 is a 40W switching (impulse) power supply that provides a regulated 12V DC output at up to 3.33A. Designed for DIN-rail mounting, it suits LED lighting, industrial control modules, CCTV cameras and other low-voltage devices. Features include short-circuit and overload protection and compact enclosure for electrical cabinets and distribution panels.

## Long description

No name MDR-40-12 is a 40W switching power supply that delivers a regulated 12V DC output with a maximum current of 3.33A. The unit is built for DIN-rail mounting and features a compact metal/plastic enclosure suitable for installation inside electrical cabinets, distribution panels and industrial control boxes. It provides stabilized output voltage for LED lighting, CCTV systems, automation modules and other low-voltage equipment that require a steady 12V supply.
Advantages
The switching design ensures efficient AC-to-DC conversion and reduced heat generation compared with linear supplies. Integrated protections against short circuit and overload increase operational safety and help prevent damage to connected devices. The DIN-rail form factor and compact footprint simplify mounting and wiring in confined electrical enclosures. The supply provides a regulated output to support consistent performance of LEDs, cameras and control electronics under varying load conditions.
Suitable for
 LED lighting strips, modules and drivers requiring 12V DC
 CCTV cameras and video equipment with 12V power input
 Industrial control modules, PLCs and sensors with low-voltage supply
 Small network devices, relays and actuators powered from 12V
Key specifications
 Output voltage: 12 V DC regulated
 Maximum output current: 3.33 A
 Rated output power: 40 W
 Input type: AC mains switching supply
 Mounting: DIN-rail compatible enclosure
 Protections: short-circuit and overload protection
 Cooling: convection (no fan)
 Enclosure: compact design for electrical cabinets
How to use
Mount the unit on a standard DIN-rail inside an appropriate electrical cabinet or distribution panel. Connect AC mains to the input terminals following local wiring regulations and ensure correct grounding. Connect the 12V DC output to the load, observing polarity. Verify the load current does not exceed the 3.33A rating and allow adequate clearance for ventilation. If the protection mechanism activates due to overload or short circuit, remove the fault and restart power according to standard safety procedures.
Usage recommendations
Install the power supply in a dry, well-ventilated location away from direct heat sources. Keep the cumulative current of connected devices below the rated 3.33A, and use appropriate wiring and fuses on both input and output sides. Regularly inspect terminals for secure connections and follow local electrical codes for earthing and overload protection.

## FAQ

### How much does the Switching power supply No name MDR-40-12 12V 40W cost, and is it available for purchase?

The price is 31.49 € (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 13.07.2026 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 No name 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 No name 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/11793393/67192493_large.webp