theben DMG 2 T KNX 2-Way Universal Dimmer Actuator (4930270)

Description

Introduction

The theben DMG 2 T KNX (item no. 4930270) is a 2-way universal dimmer actuator engineered as a MIX2 base module for KNX building automation systems. Operating with a KNX bus current of ≤4 mA alongside a 230 V AC (50 Hz) mains voltage supply, this DIN rail-mounted device delivers versatile dimming control across modern lighting circuits, including incandescent, low-voltage and high-voltage halogen, dimmable energy saving lamps, and LED loads. This device is part of our KNX system devices range.

Designed for modular flexibility and operational efficiency, the DMG 2 T KNX features a low standby consumption of approximately 0.9 W and supports trailing edge (RC-mode) dimming up to 400 W for energy saving lamps. As a MIX2 base unit, it can be upgraded up to a maximum of 6 channels through extension modules, providing a scalable solution for both residential and commercial KNX installations.

Key Features

• 2-channel universal dimmer actuator (MIX2 base module)
• Operating voltage via KNX bus line (≤4 mA)
• Mains operating voltage of 230 V AC, 50 Hz
• Switching capacity per channel: 400 W (minimum 5 W)
• Switching capacity in parallel operation: 800 W
• Trailing edge (RC-mode) dimming up to 400 W for energy saving lamps
• Screw terminals for power wiring and standard KNX bus terminal
• Maximum cable length of 100 meters

Benefits

• Broad Lighting Compatibility: Controls incandescent, low-voltage and high-voltage halogen, dimmable energy saving, and LED lamps.
• Scalable Modular Design: Functions as a MIX2 base module that can be upgraded up to a maximum of 6 channels.
• High Capacity Dimming: Provides 400 W switching capacity per channel and up to 800 W in parallel operation.
• Energy-Conscious Operation: Features a low standby power consumption of approximately 0.9 W.
• Standard DIN Rail Form Factor: Designed for 4-module width DIN rail mounting with Protection Class II according to EN 60 669.

Technical Specifications

Specification	Value
Operating voltage KNX	Bus voltage, ≤4 mA
Operating voltage	230 V AC, 50 Hz
Frequency	50
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	~0.9 W
Capacity loss max.	4.5
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
Max. cable length	100
Installation type	DIN rail
Protection class	II according to EN 60 669
Type of connection	Terminal screws | Bus connection: KNX bus terminal
Switching capacity per channel	400
Switching capacity in parallel operation	800
Switching capacity min.	5

Applications

• Commercial and residential lighting control circuits requiring precise 2-channel or expanded dimming.
• DIN rail electrical distribution boards requiring universal dimming for LED, halogen, or energy-saving lamps.

Installation Notes

• Mount the 4-width unit securely on a standard DIN rail inside an appropriate switchboard panel.
• Connect the KNX bus line using the dedicated KNX bus terminal, and wire power connections using the screw terminals.
• Ensure solid conductors (0.5 mm² to 6 mm²) or stranded wires with sleeves (0.5 mm² to 4 mm²) are used within the specified maximum cable length of 100 meters.

Developer Resources

• Product Data Sheet (PDF)
• CE Declaration of Conformity (PDF)
• Information Notice EU Data Act (PDF)

FAQ

How many channels does the theben DMG 2 T KNX offer?

The DMG 2 T KNX features 2 channels natively, and as a MIX2 base module, it can be upgraded up to a maximum of 6 channels using extension units. Explore more theben KNX solutions for professional building automation projects.

What is the switching capacity per channel?

The unit offers a switching capacity of 400 W per channel, with a minimum switching capacity of 5 W and up to 800 W in parallel operation. For certificates and current technical files, refer to the official theben product page.

What lamp types are compatible with this actuator?

It is compatible with incandescent lamps, low-voltage and high-voltage halogen lamps, dimmable energy-saving lamps, and dimmable LED light sources.

What is the exact product model?

The order/model code for this page is 4930270. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by theben.

Where can I find the official technical documentation?

Use the manufacturer product page and datasheets for this exact SKU. Always verify the latest revision before specifying the product.

Conclusion

The theben DMG 2 T KNX (4930270) 2-way universal dimmer actuator offers a reliable and expandable solution for KNX lighting control. Combining universal lamp compatibility, parallel operation up to 800 W, and modular MIX2 expansion up to 6 channels, it is an essential component for high-performance building automation installations. Installers and system integrators can review our become a KNX dealer options.