# MEAN WELL PT-45B Power Adapter 45 W 12 V 90 - 264 V

**URL:** https://aio.lv/en/product--mean-well-pt-45b--1790982
**Data updated:** 2026-07-27 18:21 (EEST)
**Category:** Other goods
**Manufacturer:** mean well
**Manufacturer code:** PT-45B
**EAN:** 4021087024327
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.49 €
**Prices and availability valid until:** 2026-08-27 23:59
**Price without VAT (21%):** 30.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-pt-45b--1790982

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.08.2026 | free |
| Pickup points | 31.08.2026 | 1.79 EUR |
| Courier delivery to door | 31.08.2026 | 4.99 EUR |

## Summary description

The MEAN WELL PT-45B is a reliable 45 W power adapter designed for diverse electronic applications. It features an input voltage range of 90 to 264 V and delivers a steady 12 V output. Built to meet RoHS compliance standards, this power supply unit ensures safe and efficient energy conversion for various technical setups and devices requiring stable power.

## Long description

The MEAN WELL PT-45B Power Adapter 45 W 12 V 90 - 264 V is a reliable open frame power supply unit designed to deliver stable energy conversion for diverse electronic applications. Engineered to meet strict quality and safety standards, this triple output power supply ensures consistent performance across various technical setups and devices requiring dependable power.
Advantages
This power adapter offers versatile functionality through its triple output design, accommodating multiple voltage requirements within a single compact unit. It features a wide input voltage range, making it adaptable to different electrical environments. Built by a trusted manufacturer, the unit ensures safe operation and steady energy delivery for compatible electronic devices while maintaining a durable open frame construction.
Suitable for
Powering multi-voltage electronic circuits and DIY tech projects
Integration into industrial automation and control systems
Laboratory equipment requiring steady 5V, 12V, and -12V outputs
Small-scale electronic devices and experimental setups
When it may not be suitable
This device is an open frame power supply, meaning it lacks an enclosed outer casing and is generally not suitable for standalone external use where exposed terminals could pose safety risks. It should also be avoided in applications requiring power outputs significantly higher than the 45 W limit or configurations that do not match the specified triple output voltages.
Key specifications
Power output: 45 W
Input voltage range: 90 to 264 V
Primary output: 12 V
Additional outputs: 5Vdc at 5A, +12Vdc at 2.5A, -12Vdc at 0.5A
Design type: Open frame power supply with triple output
Compliance: RoHS compliant
How to use
Installation should be performed by qualified personnel familiar with open frame power supplies and electrical safety practices. Ensure the input voltage matches the specified range before connecting the wiring to the input terminals. Secure the unit properly within a suitable protective enclosure or housing to prevent accidental contact with live components during operation. Connect the appropriate output lines to your devices according to the required voltage specifications.
What to consider before purchase
Verify that your equipment requires the specific voltage and current combinations provided by this triple output model
Ensure you have a secure, enclosed housing or mounting space, as this is an open frame unit
Check that your total power consumption does not exceed the 45 W capacity
Usage recommendations
Always disconnect the power source before performing any wiring or installation tasks. Ensure adequate ventilation around the unit within its enclosure to prevent heat buildup during continuous operation.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.22 kg |
| Height | 28 mm |
| Input voltage | 90 - 264 |
| Output voltage | 12 |
| Width | 76 mm |
| Depth | 127 mm |
| Output current | 0.5 A |
| Output power | 45 W |
| Quantity per pack | 72 pc(s) |
| Compliance certificates | RoHS |

## FAQ

### How much does the MEAN WELL PT-45B Power Adapter cost, and is it available for purchase?

The price is 36.49 € (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 26.08.2026 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. 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 MEAN WELL PT-45B Power Adapter?

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/1790982/64186958_large.webp