QLT Master Dimmer Interface for DALI BUS For Domotic Button Home Automation

QLT A40DDMASTERN is the DALI Master generator designed by QLT to act as a dimmer and interface for the DALI BUS, enabling the creation and management of a complete DALI line. Built in PVC with compact dimensions — 42 mm wide, 47 mm long and 20 mm deep — it integrates seamlessly into existing electrical installations. Its core function is to generate the DALI signal required to control compatible LED fixtures, accepting both push-button control and integration with home automation systems via 0-10V and 1-10V inputs.

This device proves essential in any professional installation requiring precise and reliable LED lighting dimming. Powered directly by the DALI BUS at a voltage between 9 and 26V with no additional limitations, it supports DALI signal cables up to 300 metres, ensuring flexibility even in large-scale environments. The built-in 3-minute timer function adds further versatility to usage scenarios. The IP20 protection rating and insulation class II ensure compliance with electrical safety standards, while voltage compatibility with the main international standards — EU, AUD, USA, UK and JAP — makes it suitable for installations across different markets.