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header-product Power Adapter MEAN WELL KNX-20E-640
124.95 €

Power Adapter MEAN WELL KNX-20E-640

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Short description

The MEAN WELL KNX-20E-640 is a reliable 20W power adapter with an input voltage range of 180-264V and an output voltage of 30V. It is RoHS compliant, ensuring environmental safety. Compact dimensions of 52.5mm width, 54.5mm depth, and 90mm height make it suitable for various applications. Each pack contains 60 units, providing a cost-effective solution for your power needs.
Available at price 124.95 €: 10 pcs.
Total available for order: 151 pcs.
Warranty: 2 Years
SKU: 1622632
Manufacturer: mean well
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
Wednesday {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
13.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.22 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
13.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
0 credit

pay in 3 equal parts

today

0 €

afterward

3 mth. х 41.65 €

overpayment

0 €

All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 3.47 euros per month
Together cheaper
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Product information

Description

The MEAN WELL KNX-20E-640 is a compact AC-DC DIN-rail power adapter designed for KNX/EIB installations. It delivers a stabilized 30 V DC output at up to 640 mA (20 W) from a wide input range of 180–264 V AC and comes in a plastic enclosure with an integrated choke. The unit is RoHS compliant and suitable for mounting on standard DIN rails in control cabinets and automation panels.

Advantages

The adapter offers a stable 30 Vdc output with up to 640 mA current capacity in a small 52.5 × 54.5 × 90 mm plastic housing, simplifying installation in confined electrical cabinets. Integrated choke reduces noise and improves compatibility with KNX/EIB bus systems. Wide input voltage range (180–264 V AC) allows reliable operation in varying mains conditions. RoHS compliance ensures reduced environmental impact.

Suitable for

  • Powering KNX/EIB bus devices and line couplers
  • DIN-rail installations in residential or commercial automation panels
  • Small control cabinets and electrical distribution modules

Key specifications

  • Brand: mean well
  • Model / MPN: KNX-20E-640
  • EAN: 4021087034500
  • Output: 30 V DC, 640 mA (20 W)
  • Input voltage: 180–264 V AC
  • Mounting: DIN rail
  • Enclosure: plastic
  • Dimensions (W × D × H): 52.5 × 54.5 × 90 mm
  • Compliance: RoHS

How to use

Mount the KNX-20E-640 on a standard DIN rail inside the control cabinet. Connect the AC mains supply (180–264 V AC) to the input terminals following local electrical regulations and ensure proper protective devices are in place. Connect the 30 V DC output to the KNX/EIB bus or to the devices requiring 30 Vdc, observing correct polarity. Verify grounding and secure all terminal connections before powering the unit.

Usage recommendations

Install in a well-ventilated enclosure and avoid placing the adapter near heat sources. Ensure the total DC load does not exceed 640 mA and account for inrush currents of connected devices. Follow KNX installation rules and local electrical codes when integrating into bus systems.

Specifications

Weight:
0.215 kg
All features
Input voltage:
180 - 264
Output voltage:
30
Output current:
0.64 A
Output power:
20 W

Certificates

Compliance certificates:
RoHS

Weight & dimensions

Weight:
0.215 kg
Height:
90 mm
Width:
52.5 mm
Depth:
54.5 mm

Logistics data

Quantity per pack:
60 pc(s)

Description

Machine translation. Load original

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Stock data
Warehouse Stock Delivery to the store Store Price
WH127 10 Wednesday Best delivery 124.95 € Best price
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 141 31.07.2026 144.99 €
124.95 €
Stock: 10
Delivery Date: Wednesday Best delivery
Warehouse: WH127
Available only for legal entities
144.99 €
Stock: 141
Delivery Date: 31.07.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Power Adapter MEAN WELL KNX-20E-640 cost, and is it available for purchase?

The price is 124.95 € (valid at the time of publication and already includes all taxes). The item is available for order — 151 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 Wednesday 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, Installment. All transactions are 100% secure and encrypted.

Can Power Adapter MEAN WELL KNX-20E-640 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Power Adapter MEAN WELL KNX-20E-640 online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, 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.

Where can I download the instructions for Power Adapter MEAN WELL KNX-20E-640?

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.
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