Built-in rotary dimmer Busch-Jaeger 2117/11 U, 230 V AC, 50–60 Hz, black

Busch-Jaeger 2117/11 U is a built-in rotary dimmer for 230 V AC mains (50–60 Hz) presented in a black finish. The device is designed for recessed installation in compatible switch boxes and provides smooth, stepless adjustment of light intensity using a rotary control. It is suitable for standard domestic and commercial lighting loads and meets RoHS requirements for restricted hazardous substances.

Advantages

The rotary dimmer offers stepless dimming for precise control of illumination level and a compact form factor for installation in standard recessed switch boxes. Its mechanical rotary control provides intuitive operation and reliable tactile feedback. The black finish integrates into dark interior designs and reduces visible markings. Compliance with RoHS ensures fewer restricted substances, supporting safer installation and disposal practices.

Suitable for

Key specifications

How to use

Install the dimmer in a compatible recessed switch box following local electrical regulations and safety standards. Connect the supply and load conductors according to the product wiring diagram and switch off mains power before installation. After installation, rotate the knob clockwise to increase light level and counterclockwise to reduce it. Ensure connected lamps fall within the dimmer's supported load type and power range to avoid flickering or reduced lifetime.

Recommendations

For reliable performance, use with incandescent, halogen, or compatible dimmable loads specified by the lighting manufacturer. Avoid connecting electronic drivers or LED modules unless they are explicitly listed as compatible. When replacing an existing wall control, verify switch box depth and wiring to ensure safe recessed mounting; consult a qualified electrician for installation and load compatibility checks.