Light dimmer switch HMIP-UDI-SMI55-A

automaticwith motion sensorelectronic

Quick overview
The Universal dimmer attachment – motion detector complements the separate Universal dimmer insert to form a compact wall solution for automatic lighting control and manual operation. It integrates a PIR motion sensor, a twilight (ambient light) sensor and two buttons for direct control and for triggering additional system functions.

Key features

• Automatic lighting control when movement is detected and depending on ambient brightness for increased convenience in everyday use
• Integrated PIR sensor with up to 12 m detection range and a twilight sensor to reliably detect motion and ambient light
• Two buttons for manual control of lighting and additional functions within the Homematic IP smart home system (short-circuit connection to the dimmer insert)
• Designed to fit standard 55 mm switch frames

Applications / Use cases

• Orientation lighting in corridors and stairways: gentle, dimmed switch-on when movement is detected
• Automatic switching of passage lighting (e.g. corridors, entrances)
• Combination with dimmer insert for seamless dimming or to trigger scenes via button press

Operation and integration

• The attachment is mechanically mounted onto the assembly module of the Universal dimmer insert and communicates via the Homematic IP radio system.
• The two buttons allow: short press to switch, long press to dim or to activate supplementary smart‑home functions.
• Motion and twilight functions operate independently of manual operation: motion switching only occurs below defined brightness thresholds.

Compatibility

• Designed for use with the separate Universal dimmer insert (flush-mounted dimmer insert). The attachment is not intended as a standalone unit.
• Suitable for switch series with standardized 55 mm frame dimensions; the original frame is mounted on the assembly module and the attachment snaps into it.

Note for installation
The attachment is mechanically connected to the Universal dimmer insert. For commissioning and correct functioning use the assembly module and the electrical installation according to the enclosed operating instructions. The attachment itself is not directly connected to mains voltage but is powered via the assembly module / dimmer insert.

Technical specifications

• Model: HmIP-UDI-SMI55-A
• Product short name: HmIP-UDI-SMI55-A
• Article number: 162343A0
• EAN: 4047976623433
• Supply voltage: 12 V DC (via assembly module / dimmer insert)
• Current consumption: max. 15 mA
• Protection class: IP20
• Dimensions (W x H x D): 55 x 55 x 17 mm
• Weight: 57.4 g
• Radio frequency band: 868.0–868.6 / 869.4–869.65 MHz
• Typical radio range in free field: 230 m
• PIR detection range: up to 12 m
• Horizontal detection angle: 120°
• Vertical detection angle: -10° to +25°
• Function type: motion/presence detector, button control for switching/dimming and system functions
• Color of the described variant: anthracite