B5B-LS4-U – Eunica Light Switch with frame in anthracite

Why Choose the Carlo Gavazzi B5B-LS4-U Eunica Light Switch?

The Carlo Gavazzi B5B-LS4-U is a 55 × 55 mm smart-house light switch designed for building automation and intelligent lighting-control applications. Supplied with a dark frame, this compact wall-mounted control provides a clean user interface for operating lighting and other functions assigned through a compatible Carlo Gavazzi smart-house system.

The B5B-LS4-U belongs to Carlo Gavazzi's configurable light-switch family and is represented by the B5X-LS4-U device within the Carlo Gavazzi Sx configuration environment. Its four-button interface supports configurable input actions, allowing different functions to be associated with short, long and very-long button activations according to the automation project.

Designed for integrated building control rather than conventional stand-alone mains switching, the B5B-LS4-U provides a flexible operator interface for smart lighting installations. Configurable activation timings allow each push-button to perform different commands, making the unit suitable for residential, commercial and other automated-building applications requiring convenient multi-function wall control.

Key Advantages

• Purpose-designed smart-house light switch for building automation systems.
• Compact 55 × 55 mm format for wall-mounted control applications.
• Four-button interface provides flexible multi-function operation.
• Supports configurable short, long and very-long button activations.
• Individual activation timings can be configured for each push-button.
• Integrates with Carlo Gavazzi smart-house control architecture.
• Dark frame provides a contemporary appearance for modern interiors.

Key Features

• Carlo Gavazzi smart-house light switch.
• Manufacturer reference B5B-LS4-U.
• 55 × 55 mm switch format.
• Four configurable push-buttons.
• Configurable using the B5X-LS4-U device profile in Carlo Gavazzi Sx Tool.
• Long activation time configurable from 1 to 5 seconds.
• Very-long activation time configurable from 0.5 to 15 seconds.
• Short and long activations are recognised when the push-button is released.
• Different activation times can be assigned to individual buttons.
• Designed for intelligent lighting and building-control applications.

Flexible Multi-Function Lighting Control

The Carlo Gavazzi B5B-LS4-U provides more functionality than a basic mechanical light switch by allowing its push-buttons to be configured as inputs within a smart-house automation system. Short, long and very-long activations can be interpreted differently by the controller, enabling multiple building-control commands to be accessed from the same compact wall interface.

Within the Sx Tool, the B5B-LS4-U is configured using the B5X-LS4-U light-switch profile. Long activation can be set between 1 and 5 seconds, while very-long activation can be configured between 0.5 and 15 seconds. This flexibility allows the switch behaviour to be tailored to the requirements of the individual room, lighting zone or building-automation project.

Typical Applications

• Smart-home lighting control.
• Carlo Gavazzi smart-house automation systems.
• Residential building automation.
• Commercial offices and meeting rooms.
• Hotels and hospitality installations.
• Multi-function room-control interfaces.
• Automated lighting scenes and lighting-zone control.
• Legacy smart-house system maintenance and replacement applications.