Osram DALI PCU tw2 dimmer

Osram DALI PCU tw2 is a DALI control unit by Osram, designed for advanced management of lighting fixtures with DALI power supplies. Built in PVC with compact dimensions — 48 x 49 x 21.5 mm — and a protection rating of IP20, this control unit implements the DALI 2 protocol and enables intuitive manual dimming and precise switching of DALI light fittings. It operates at an input voltage of 220–240 V and features an integrated DALI power supply.

The PCU tw2 allows control of up to 25 devices using a single button, providing an efficient solution for professional and commercial settings such as conference rooms, restaurants and retail spaces. Up to 4 units can be connected in parallel to create multiple control points with automatic synchronization, and the unit is compatible with standard mains-fed presence and motion detectors. Each unit supports a control cable of up to 300 metres, allows a custom minimum brightness level to be set, and can be configured to define system behaviour in the event of a power failure. Thanks to its versatility, it is especially suited to moveable partition walls and variable-layout environments, as well as installations in office spaces.