Steinel IR Quattro HD DALIplus surface-mounted presence detector

The Steinel IR Quattro HD DALI plus 035273 is a surface-mounted ceiling presence detector for indoor lighting control. Its white RAL 9010 plastic housing has a rounded square outline and a projecting sensor lens. It controls an installation rather than providing light itself, so it should not be selected as a ceiling luminaire.

Three lighting groups, with a separate relay

The DALI interface supports up to 64 control gear units arranged into three addressable lighting groups. In a classroom, for example, this allows the board lighting to be treated separately from the other luminaires. An additional floating relay provides a distinct switching output; it is not a fourth addressable DALI group. Keep the bus control and relay load separate when planning the installation.

Constant-light control, fully automatic operation and semi-automatic operation are supported. Four pushbutton inputs allow manual commands to be incorporated. The manual specifies a relay capacity of 2000 W for incandescent or halogen loads, but 600 W for LED or electronic ballast loads, subject to the further limits in the installation instructions.

Presence coverage is not the same as walking coverage

Passive infrared detection operates through 360° using 4800 switching zones. Steinel distinguishes an 8 × 8 m square presence area from a 20 × 20 m tangential movement area. The larger figure should therefore not be used as the seated-presence coverage. Mechanical range adjustment allows the detection area to be matched to the room layout.

Allow for the surface-mounted housing

The housing occupies 120 × 120 mm at the ceiling and projects by 65 mm. This is not the recessed version. Installation heights run from 2.5 to 10 m, with 2.8 m stated as optimum. Intended indoor applications include classrooms, open-plan offices, warehouses and multi-storey car parks; the enclosure is rated IP20.

The light threshold is adjustable from 10 to 1000 lx and the stay-on time from 5 seconds to 60 minutes. Settings can also be made using Smart Remote, which is not supplied. Connection to the 220–240 V mains must be carried out professionally and must not be confused with the DALI control connection.