# Power Supply Unit MEAN WELL RSP-320-48

**URL:** https://aio.lv/en/product--mean-well-rsp-320-48--1789895
**Data updated:** 2025-12-29 07:49 (EET)
**Category:** Other goods
**Manufacturer:** mean well
**Manufacturer code:** RSP-320-48
**EAN:** 4021087013796
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 64.58 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 53.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-rsp-320-48--1789895

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Tuesday | free |
| Pickup points | 31.07.2026 | 1.79 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

The MEAN WELL RSP-320-48 is a 321.6 W 1U metallic power supply unit with an AC input voltage range of 88 - 264 V and a frequency of 47 - 63 Hz. It features active cooling with one fan, a compact size of 115 mm width, 215 mm depth, and 30 mm height. With a mean time between failures (MTBF) of 206500 hours, it is UL60950-1, TUV EN60950-1, and CCC GB4943 approved, ensuring reliability and safety for your applications.

## Long description

The MEAN WELL RSP-320-48 is a compact, 321.6 W switching power supply in a 1U metal housing designed for industrial and IT applications. It accepts a universal AC input (88–264 V, 47–63 Hz) and delivers a 48 V DC output with active PFC and forced-air cooling via a single fan. The unit measures 115 mm × 215 mm × 30 mm and includes safety approvals (UL60950-1, TUV EN60950-1, CCC GB4943) and an LED power-on indicator.
Advantages
The power supply features built-in active power factor correction with PF \> 0.95 and high conversion efficiency up to 90%, reducing energy loss and heat generation. Its low-profile 1U (30 mm) metal case supports space-constrained installations. The design offers long-term reliability with an MTBF of 206,500 hours and optional conformal coating for improved protection in harsh environments.
Suitable for
Industrial control systems and automation
Network and communication equipment
Rack-mounted and space-limited installations
Embedded systems requiring 48 V DC supply
Key specifications
Model: MEAN WELL RSP-320-48
Output power: 321.6 W
Input voltage: 88–264 V AC, 47–63 Hz
Output voltage: 48 V DC
Efficiency: up to 90%
Power factor: \> 0.95 (active PFC)
Cooling: 1 fan (forced air)
Dimensions: 115 mm (W) × 215 mm (D) × 30 mm (H)
MTBF: 206,500 hours
Approvals: UL60950-1, TUV EN60950-1, CCC GB4943
Indicators: LED power-on
How to use
Install the RSP-320-48 in a suitable rack or chassis with adequate airflow, securing it by its mounting points. Connect the AC mains within the specified 88–264 V range and verify correct earthing. Connect the 48 V DC output to the load following polarity and current limits defined by your system. Ensure the fan intake and exhaust are not obstructed and monitor the LED indicator for power status.
Usage recommendations
For reliable operation, mount the supply in an environment within the manufacturer’s rated temperature and humidity ranges, provide sufficient ventilation, and consider the optional conformal coating if the device will be exposed to dust, moisture, or corrosive atmospheres.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.9 kg |
| Mean time between failures (MTBF) | 206500 h |
| Safety | UL60950-1, TUV EN60950-1 , CCC GB4943 approved |
| Operating relative humidity (H-H) | 20 - 90 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | -30 - 70 |
| Storage relative humidity (H-H) | 10 - 95 |
| Height | 30 mm |
| LED indicators | Y |
| Width | 115 mm |
| Depth | 215 mm |
| Product colour | Metallic |
| Number of fans | 1 fan(s) |
| Efficiency | 90 % |
| Hold time | 8 ms |
| Rise time | 50 ms |
| Cooling type | Active |
| Power protection features | Overload, Short circuit, Overheating, Over voltage |
| Fan location | Top |
| Power Factor Correction (PFC) type | Active |
| AC input frequency | 47 - 63 |
| AC input voltage | 88 - 264 |
| Total power | 321.6 W |
| Power supply unit (PSU) form factor | 1U |

## FAQ

### How much does the Power Supply Unit MEAN WELL RSP-320-48 cost, and is it available for purchase?

The price is 64.58 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 Tuesday 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

### Where can I download the instructions for Power Supply Unit MEAN WELL RSP-320-48?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/1789895/58083106_large.webp