theben DME 2 T KNX 2-Way Universal Dimmer Actuator Extension Module (4930275)

Description

Introduction

The theben DME 2 T KNX (SKU: 4930275) is a high-performance 2-way universal dimmer actuator MIX2 extension module engineered for DIN rail mounting in modern KNX building automation systems. Designed to offer flexible channel expansion, this module enables system integrators and electrical installers to scale lighting installations efficiently, allowing upgrades up to a maximum of 6 channels when paired with MIX2 host devices. This device is part of our KNX Actuators range.

This extension module operates on 230 V AC at 50 Hz and provides intelligent control across a wide range of light sources, including incandescent lamps, low-voltage and high-voltage halogen lamps, dimmable LEDs, and dimmable energy-saving lamps. Featuring screw terminal connections and a compact 4-module width, the unit offers low stand-by energy consumption of approximately 0.6 W and compliant Protection Class II protection.

Key Features

• 2-way universal dimmer actuator MIX2 extension module.
• DIN rail mounting format with a width of 4 modules.
• Operating voltage of 230 V AC, 50 Hz.
• Trailing edge (RC-mode) rated up to 400 W for energy-saving lamps.
• Minimum switching capacity threshold of 5.
• Protection class II designation according to EN 60 669.
• Designed for operating ambient temperatures from -5°C to 45°C.

Benefits

• Modular System Expansion: Integrates seamlessly as a MIX2 extension module to allow system growth up to 6 channels.
• Broad Lighting Compatibility: Smoothly controls incandescent, low-voltage/high-voltage halogen, dimmable LED, and energy-saving lighting types.
• High Parallel Output Capacity: Supports a individual channel switching capacity of 400 and up to 800 in parallel operation.
• Energy Efficient: Reduces idle power draw with a low standby power consumption of approximately 0.6 W.
• Robust Wiring Standard: Features screw terminals that accept solid wire cross sections up to 6 mm² and stranded wire with sleeves up to 4 mm².

Technical Specifications

Specification	Value
Operating voltage	230 V AC, 50 Hz
Frequency	50 Hz
Lamp types	Incandescent, low-voltage and high-voltage halogen and dimmable energy saving lamps and LED
Energy saving lamps	Trailing edge (RC-mode): 400 W
Stand-by consumption	~0.6 W
Max. cable cross section	Solid wire: 0.5 mm² (Ø 0.8) to 6 mm² | Stranded wire with end sleeve: 0.5 mm² to 4 mm²
Number of channels	2
Information Notice EU Data Act	PDF
CE declaration of conformity	PDF
Data sheet	PDF
Width	4 modules
Max. cable length	100 m
Installation type	DIN rail
Protection class	II according to EN 60 669
Type of connection	Screw terminals
Switching capacity per channel	400 W
Switching capacity in parallel operation	800 W
Switching capacity min.	5 W
Ambient temperature	-5°C … 45°C
Operating instructions	PDF

Applications

• KNX lighting control expansion within commercial, institutional, and residential building infrastructure utilizing theben MIX2 architecture.
• Centralized dimming systems requiring mixed-load control across LEDs, halogen lamps, and dimmable energy-saving luminaires.

Installation Notes

• Mount the module onto a standard DIN rail inside an enclosure, occupying 4 width units.
• Execute electrical wiring via screw terminals, ensuring solid wire connections remain within 0.5 mm² to 6 mm² or stranded wire with end sleeves within 0.5 mm² to 4 mm².
• Verify that ambient operating conditions stay within -5°C to 45°C and maximum cable length does not exceed 100 meters.

Developer Resources

• Data sheet (PDF)
• Operating instructions (PDF)
• CE declaration of conformity (PDF)
• Information Notice EU Data Act (PDF)

FAQ

What is the maximum channel capacity when using the theben DME 2 T KNX module?

The DME 2 T KNX is a 2-way MIX2 extension module that allows system upgrading up to a maximum total of 6 channels. Explore more theben building automation products for professional building automation projects.

Which lamp types are compatible with this universal dimmer?

It supports incandescent lamps, low-voltage and high-voltage halogen lamps, dimmable energy-saving lamps, and dimmable LED lamps. For certificates and current technical files, refer to the official theben documentation.

What is the switching capacity per channel and in parallel mode?

The device provides a switching capacity of 400 per channel (minimum 5) and up to 800 in parallel operation.

What installation format does this module use?

It is designed for DIN rail installation and has a width requirement of 4 modules.

What is the exact product model?

The order/model code for this page is 4930275. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Conclusion

The theben DME 2 T KNX (SKU: 4930275) universal dimmer actuator extension module offers an efficient, reliable solution for expanding lighting control channels up to 6 total outputs in KNX installations. Installers and system integrators can review our dealer and project support options.

With its versatile load support, low 0.6 W standby power consumption, and standard 4-module DIN rail form factor, it provides exceptional flexibility for professional automation projects.