Theben – DME 2 KNX 4910221 – Universal 2‑Channel Dimming Extension Module

The Theben DME 2 KNX 4910221 is a DIN‑rail mounted KNX-compatible extension dimming actuator designed to complement lighting control systems. It adds two additional dimmable output channels (300 VA each, or 500 VA asymmetrically) to a compatible base module within a KNX environment, supporting load-sharing and scalability via boosters.

Key Features:

• Manufacturer: Theben (DME 2 KNX series)  

• MPN: 4910221

• Function: Extension dimmer actuator for 2 channels

• Output Power: Symmetric: 2 × 300 VA; Asymmetric: 1 × 500 VA  

• Boost Capability: With DMB 2 booster, capacity doubles to 2 × 600 VA or 1 × 1000 VA  

• Bus Consumption: <10 mA KNX bus current  

• Manual Switch: ON / OFF / BUS mode, supports no-bus switching  

• Protection Rating: IP20 enclosure for DIN-rail mounting  

• Power Line: 230 V AC, 50 Hz operation  

• Load Detection: Automatic detection, can be disabled

• Dimensions: 4 TE (modules) wide, approx. 45 × 72 × 60 mm