STEINEL KNX-S System Component UA24 KNX-S Universal Interface, 4 Binary Inputs, Flush-Mounted 089184

Integrating conventional switches, push-buttons, or potential-free contacts into a KNX building automation system often requires additional hardware and complex wiring. The STEINEL KNX-S System Component UA24 KNX-S solves this by providing four binary inputs that convert simple contact closures into KNX telegrams, enabling seamless control of lighting, blinds, and other functions.

Who is it for

This universal interface is intended for KNX installers and system integrators who need to connect standard switches or sensors to a KNX bus. It is suitable for residential and commercial projects where existing or new potential-free contacts must be integrated into the automation network.

Main features

• 4 binary inputs for potential-free contacts
• Configurable functions via ETS: switching, dimming, blind control, value transmitter, scene recall, counter
• Flush-mounted installation for discreet integration
• Powered directly from the KNX bus, no external power supply needed
• Compact plastic housing in white/grey

Specifications

• Product type: Universal Interface / System Component
• Bus system: KNX
• Number of binary inputs: 4
• Input type: Potential-free contacts
• Mounting type: Flush-mounted
• Protection class: IP20
• Operating temperature range: -5 to +45 °C
• Bus connection: KNX bus terminal
• Power supply: KNX bus
• Current consumption (KNX bus): < 10 mA
• Housing material: Plastic
• Colour: White/Grey
• Configuration software: ETS
• Compatibility: KNX-S System
• Max. cable length (input lines): 3 m

Tips

For optimal performance, keep the input wiring as short as possible and use twisted-pair cables for longer runs. Ensure the device is installed in a dry environment, as it is rated IP20 and not suitable for outdoor or damp locations.