BUSCH-JAEGER Busch-Waechter 280 KNX Anthracite Motion Detector BWA4 2CKA006132A0433

Managing lighting and presence detection in KNX smart buildings can be complex, especially when you need reliable motion sensing over a wide area with adjustable parameters. The Busch-Waechter 280 KNX from BUSCH-JAEGER solves this by combining a 280° detection angle with KNX bus integration, allowing precise control of lighting, HVAC, and alarm functions based on occupancy and ambient light.

Who is it for

This device is ideal for electricians, system integrators, and building managers who need a robust, surface-mounted KNX presence detector for corridors, open offices, warehouses, or outdoor covered areas. It suits projects requiring advanced automation with constant light control and alarm functionality.

Main features

• Wide 280° detection angle with 6 levels and 460 switching segments for precise coverage.
• Adjustable brightness threshold from 10 to 1000 lux and time delay from 10 seconds to 30 minutes.
• Integrated KNX bus coupler with configuration via ETS software.
• Motion detection, presence detection, constant light control, and alarm function.
• IP55-rated housing for dust and water resistance, suitable for demanding environments.
• UV-stabilized plastic construction for durability.

Specifications

• Detection angle: 280°
• Bus system: KNX (21-30V DC)
• Mounting type: Surface-mounted
• Colour: Anthracite
• Max. detection range tangential: 20 m at 2.5 m installation height
• Max. detection range radial: 16 m at 2.5 m installation height
• Recommended installation height: 2.5 m
• Brightness threshold: 10 - 1000 lux (adjustable)
• Time delay: 10 s - 30 min (adjustable)
• IP rating: IP55
• Operating temperature range: -25 °C to +55 °C
• Housing material: UV-stabilized plastic

Tips

For optimal performance, mount the detector at the recommended height of 2.5 m and ensure the detection zones are aligned with the primary traffic paths. Use ETS software to fine-tune sensitivity and time delays to avoid false triggers in high-activity areas.