JUNG KNX Automatic Switch 2.20 m Standard LS 3281 WW (LS3281WW)

The JUNG KNX Automatic Switch is a motion and presence sensor for the KNX bus system, offering reliable detection and brightness-dependent switching for lighting control. Its 180° detection angle and 10 x 10 m range at 2.20 m mounting height ensure broad coverage.

Advantages

Integrated brightness sensor allows automatic switching based on ambient light. Adjustable brightness threshold (10–2000 Lux) and time delay (10 s–120 min) provide flexible automation. Flush-mounted design fits seamlessly into JUNG LS-Design frames.

Suitable for

• Indoor lighting automation in offices, corridors, and residential spaces
• Presence detection for energy-efficient control
• Integration into KNX smart building installations

Key specifications

• Bus System: KNX
• Product Type: Automatic Switch / Motion Detector / Presence Sensor
• Design Line: JUNG LS-Design
• Optimal Mounting Height: 2.20 m
• Detection Angle: 180°
• Detection Range: approx. 10 x 10 m at 2.20 m height
• Brightness Threshold Range: 10–2000 Lux (adjustable)
• Time Delay Range: 10 s–120 min (adjustable)
• Colour: Alpine White
• Material: Thermoplastic (PC)
• Protection Class: IP20
• Installation Type: Flush-mounted (requires separate KNX insert)
• Operating Voltage: Via KNX bus
• Number of Channels: 1 (Lighting control)
• Operating Temperature: -5 °C to +45 °C

Recommendations

For optimal performance, install at 2.20 m height and pair with a JUNG KNX insert and LS-Design frame.