Theben DU 1 DALI S RF KNX UP Flush-Mounted KNX RF DALI Actuator, 1 Channel, Broadcast 4941681

Integrating DALI luminaires into a KNX RF installation without a wired KNX bus can be a challenge. The Theben DU 1 DALI S RF KNX UP solves this by providing a wireless KNX RF interface for a single DALI broadcast group, enabling switching and dimming of up to 10 DALI electronic ballasts directly from KNX RF commands.

Who is it for

This actuator is ideal for electricians and system integrators who need to retrofit DALI lighting control into existing buildings where KNX RF is used, or where running a KNX bus cable is impractical. It suits residential and small commercial projects requiring simple, reliable DALI control via KNX RF.

Main features

• KNX RF S-Mode communication at 868.3 MHz for wireless integration
• One DALI broadcast output with integrated DALI power supply (16 V DC, max. 20 mA)
• Supports up to 10 DALI electronic ballasts (EVGs)
• Control functions: switching, dimming, scene control (16 scenes), value transmission, and status feedback
• Flush-mounted installation in standard Ø 60 mm box
• DALI cable length up to 300 m
• Low power consumption (< 0.3 W from KNX bus)

Specifications

• Product type: KNX RF DALI actuator
• Installation type: Flush-mounted (UP)
• DALI channels: 1 (broadcast)
• KNX communication: KNX RF (S-Mode), 868.3 MHz
• DALI power supply: Integrated, 16 V DC, max. 20 mA
• Max. DALI participants: 10 DALI EVGs
• Number of scenes: 16
• Number of DALI groups: 1 (broadcast)
• Ambient temperature: 0 °C to +45 °C
• Connection type: Screw terminals (DALI), KNX RF (bus)
• Programming: ETS (Engineering Tool Software)
• Power consumption (KNX): < 0.3 W
• Mounting: Standard flush-mounted box (e.g., Ø 60 mm)
• DALI cable length: max. 300 m
• Compliance: KNX certified

Tips

When commissioning, ensure the KNX RF line coupler or media coupler is within range and configured for the same RF domain. Use the ETS application to assign the DALI broadcast group address and scene functions. The integrated DALI power supply eliminates the need for an external DALI PSU for up to 10 EVGs.