# Power supply module MDT STR-0640.01 redundant bus 6TE 640 mA

**URL:** https://aio.lv/en/product--mdt-str-064001--10482108
**Data updated:** 2026-02-12 21:57 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** MDT
**Manufacturer code:** STR-0640.01
**EAN:** 4251916100032
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 345.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 285.94 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mdt-str-064001--10482108

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

MDT STR-0640.01 is a redundant bus power supply module designed for mounting on DIN rail (6TE width) that provides a 640 mA output for bus-powered devices. It ensures backup power redundancy for building automation and control systems, improving reliability for KNX/automation installations and protecting against single-supply failure.

## Long description

The MDT STR-0640.01 redundant bus power supply module is a compact DIN-rail device with a 6TE housing that provides a stabilized 640 mA output for bus-powered devices in building automation systems. Designed to support KNX/automation installations, the module supplies a reliable secondary feed to protect against single-source failure and maintain operation of connected sensors, actuators and control units. The housing and mounting format allow easy integration into standard distribution cabinets.
Advantages
The module offers redundant supply capability to increase system availability by providing a backup power source for the bus. Its 6TE width and DIN-rail mounting enable space-efficient installation within electrical panels. The unit delivers a stable 640 mA output appropriate for numerous bus devices and is intended to work seamlessly with typical KNX and building control components, reducing the risk of disruption from a single power supply fault.
Suitable for
KNX and building automation systems requiring backup bus power
Distribution cabinets and DIN-rail installations with limited space
Environments where uninterrupted operation of sensors, actuators and control units is critical
Key specifications
Output current: 640 mA
Mounting: DIN-rail (6TE width)
Function: redundant bus power supply / backup feed for bus-powered devices
Compatibility: designed for use with bus-based automation and control devices
Form factor: compact module suitable for standard electrical distribution panels
How to use
Install the module on a standard DIN rail within the distribution cabinet, ensuring correct orientation and secure mechanical fixation. Connect the module to the bus and to the primary power supply according to the system wiring plan and local electrical regulations. Use the module as a secondary or redundant feed in parallel with the main power source so that connected bus devices remain powered if the primary supply fails. Verify connections and system behavior after installation and perform routine checks to confirm redundancy functionality.
Usage recommendations
Place the module in a dry, ventilated electrical cabinet and avoid mounting near heat sources. Follow manufacturer instructions for wiring and observe local safety and installation standards. Periodically inspect terminals and contacts for secure connections and test redundancy by simulating primary supply loss to confirm continuous operation of critical bus devices.

## FAQ

### How much does the MDT STR-0640.01 redundant bus power supply cost, and is it available for purchase?

The price is 345.99 € (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 15.07.2026 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. 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 MDT 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 MDT 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/10482108/66900870_large.webp