MDT

MDT KNX power supply with diagnostic function 640 mA DIN rail mount

€232,90 EUR

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Delivery time: 7-10 working days

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SKU:SMH0299 / STC-0640.01

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Product details

DESCRIPTION

MDT KNX Bus Power Supply – Reliable power supply with diagnostic functions for KNX systems

The MDT KNX bus power supply combines a stable power supply with advanced diagnostic technology for maximum operational reliability in KNX installations. Available in 640 mA , 960 mA, and 1280 mA versions, it ensures a constant power supply while simultaneously monitoring the status of the KNX bus. Ideal for smart home and commercial applications where efficiency, durability, and safety are paramount.

Key features

Efficient power supply
- Stabilized output voltage: 30 VDC SELV
- Available variants:
  - STC-0640.01 : 640 mA nominal current (4 TE)
  - STC-0960.01 : 960 mA nominal current (6 TE)
  - STC-1280.01 : 1280 mA nominal current (6 TE)
- Additional unthrottled output for special applications
Advanced diagnostic functions
- Monitoring of bus voltage , bus current and bus overload
- Recording and reporting of mains voltage outages and restoration
- Event storage with timestamp in ring buffer, retrievable via 14-byte telegram
- Early detection of device failures for system stability
user-friendliness
- Colored LEDs for quick indication of operating status, errors and overload
- Integrated reset button for bus reset directly on the device
- Short-circuit and overload protection for maximum safety

Technical details

Current and voltage
- Supply voltage: 230 VAC, 50 Hz
- Rated current: 640mA / 960mA / 1280mA
- Peak current:
  - STC-0640.01 : 1200 mA
  - STC-0960.01 : 1600 mA
  - STC-1280.01 : 1900 mA
- Efficiency at rated load:
  - STC-0640.01 : > 85 %
  - STC-0960.01 : > 87 %
  - STC-1280.01 : > 89 %
Assembly and protection
- Types: 4 TE (STC-0640.01), 6 TE (STC-0960.01 / STC-1280.01)
- Protection class: IP20 – suitable for dry indoor areas
- Operating temperature: 0 to +45 °C
- Overvoltage category: III
Connection options
- Screw terminals: 0.5 – 4 mm² (solid), 0.5 – 2.5 mm² (stranded)
- KNX bus terminal: Ø 0.8 mm (solid conductor)

Applications

Reliable energy supply and monitoring of KNX systems in smart homes
Perfectly suited for commercial and industrial applications with high performance requirements
Optimized diagnostic and monitoring functions for flawless system stability

Additional benefits

Production in Germany – certified according to ISO 9001
3-year manufacturer's warranty for maximum reliability
Compatible with ETS 4 and ETS 5 for easy integration and setup

Product information

Manufacturer part number: STC-0640.01
Article number: SMH0299

SHIPPING & RETURNS

Shipping costs: free shipping within the EU for orders over €149; for orders under €149, we charge €5.90 shipping costs.

Switzerland: flat rate €25.00

Returns: You can cancel your purchase within 14 days of receipt and then return the products to us. Please note that for sustainability reasons and a fair pricing philosophy, we only cover return shipping costs in the case of a defect or warranty claim.

MANUFACTURER'S IDENTIFICATION

MDT technologies GmbH
Paper mill 1
DE-51766 Engelskirchen
knx@mdt.de

Frequently Asked Questions (FAQ)

How long does shipping take?

We usually ship all in-stock items within 1–2 business days of receiving payment. Delivery time within Austria is typically 1–3 business days, and to Germany 2–4 business days. You can see the exact availability on each product page.

Can I return my order?

Yes, of course. You can return products within 14 days of receipt. It's important that the items are unused. You can find all the details in our cancellation policy and return conditions.
Please note that for sustainability reasons and a fair pricing philosophy, we only cover return shipping costs in the case of a defect/warranty claim.

Is there a warranty or guarantee on the products?

Yes. All items are covered by the statutory 2-year warranty. Many manufacturers also offer extended warranties, which are specified directly on the product page or in the description.

Should you encounter any problems, simply contact us – we will take care of it.

What happens if there are not enough pieces in stock?

If your desired quantity is not fully in stock, we will send a partial shipment with the available items so that you receive part of your order as quickly as possible. The remaining products will be automatically shipped as soon as they are available again – naturally without any additional shipping costs.

MDT KNX power supply with diagnostic function 640 mA DIN rail mount