# Power Supply Unit MEAN WELL NDR-120-12

**URL:** https://aio.lv/en/product--mean-well-ndr-120-12--1621198
**Data updated:** 2025-12-29 07:43 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** NDR-120-12
**EAN:** 4021087026031
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-ndr-120-12--1621198

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

The MEAN WELL NDR-120-12 is a 120 W metallic power supply unit with an AC input voltage range of 115 - 230 V and a frequency of 47 - 63 Hz. It features a compact design with dimensions of 40 mm width, 113.5 mm depth, and 125.2 mm height. With a mean time between failures (MTBF) of 456300 hours, it ensures reliability and longevity. The unit is UL508 and TUV EN60950-1 approved, meeting EN60204-1 standards, making it a safe choice for various applications.

## Long description

The MEAN WELL NDR-120-12 is a 120 W metallic DIN-rail power supply with a universal AC input (115–230 V, 47–63 Hz) and convection cooling. Its compact housing (40 mm W × 113.5 mm D × 125.2 mm H) is designed for installation on TS-35/7.5 or 15 DIN rails. The unit is built for reliability with an MTBF of 456,300 hours and carries UL508 and TUV EN60950-1 approvals, conforming to EN60204-1 standards.
Advantages
The NDR-120-12 offers full-range AC input compatibility and passive cooling by free air convection, eliminating the need for fans. It undergoes 100% full-load burn-in testing to ensure consistent performance and long service life. The metal enclosure and DIN-rail mount design simplify integration into control cabinets while certifications provide compliance with relevant safety standards.
Suitable for (tasks / use cases)
Industrial control panels and automation systems
Machine tool and factory equipment power supply
Building electrical distribution and control cabinets
Low-noise environments requiring fanless power supplies
Key specifications
Output power: 120 W
Input voltage: 115–230 V AC, 47–63 Hz
Mounting: DIN rail TS-35/7.5 or 15
Cooling: free air convection (fanless)
Dimensions: 40 mm × 113.5 mm × 125.2 mm (W × D × H)
MTBF: 456,300 hours
Approvals: UL508, TUV EN60950-1; meets EN60204-1
How to use
Mount the MEAN WELL NDR-120-12 onto a TS-35/7.5 or 15 DIN rail inside a suitably ventilated enclosure. Connect the AC input within the specified 115–230 V AC, 47–63 Hz range and wire the DC output according to your device requirements and polarity. Ensure correct grounding and follow the manufacturer’s wiring diagrams and local electrical codes when installing and commissioning the unit.
Usage recommendations
Install the unit in an environment with adequate ventilation to maintain passive cooling efficiency, avoid mounting directly above heat-generating components, and observe the specified input voltage range and safety approvals for compliance.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 120 W |
| Efficiency | 85.5 % |
| Hold time | 16 ms |
| Power protection features | Overload, Short circuit, Overheating, Over voltage |
| Input current | 1.3 |
| AC input frequency | 47 - 63 |
| AC input voltage | 115 - 230 |

### Performance

| Feature | Value |
|---|---|
| Mean time between failures (MTBF) | 456300 h |

### Design

| Feature | Value |
|---|---|
| Product colour | Metallic |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.6 kg |
| Height | 125.2 mm |
| Width | 40 mm |
| Depth | 113.5 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 20 - 95 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | -20 - 70 |
| Storage relative humidity (H-H) | 10 - 95 |

### Other features

| Feature | Value |
|---|---|
| Rise time | 60 ms |

### Safety regulation & standards

| Feature | Value |
|---|---|
| Safety | Ul508, TUV EN60950-1 approved ;(meet EN60204-1) |

## FAQ

### How much does the Power Supply Unit MEAN WELL NDR-120-12 cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 79 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 22.07.2026 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 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/1621198/64167382_large.webp