Universal 2 channel Input UI2 KNX-S

Key Features

• Dual-Channel Universal Input: Provides two independent inputs for connecting a wide range of voltage-free contacts such as switches, push buttons, or window/door sensors.

• Flexible Configuration: Each input can be individually parameterised via ETS to perform multiple functions including switching, dimming, scene control, and value transmission.

• Temperature Measurement Support: Compatible with external NTC temperature sensors, allowing integration for temperature monitoring and HVAC-related functions.

• Compact Installation Design: Space-saving 2-module (2 TE) housing for DIN-rail mounting, suitable for both residential and commercial distribution boards.

• KNX Secure Communication: Fully compatible with KNX Data Secure, ensuring encrypted and reliable communication between devices for enhanced data protection.

• Manual Control and Status LEDs: Includes local test and status indication LEDs for straightforward commissioning and visual feedback.

Product Description

The Steinel 089221 Universal 2-Channel Input UI2 KNX-S is a versatile KNX input module designed to enhance flexibility and integration within intelligent building automation systems. Featuring two independent, freely configurable inputs, it enables the connection of standard voltage-free contacts such as switches, push buttons, sensors, or window contacts. Each input can be parameterised through ETS software to perform a variety of tasks, including switching, dimming, scene activation, or sending temperature and status values.

The UI2 KNX-S also supports connection to external NTC temperature sensors, providing accurate temperature readings for HVAC control and environmental monitoring applications. Designed for secure communication, the device integrates KNX Data Secure to ensure encrypted, tamper-proof data exchange across the KNX bus.

Compact in design and easy to install on a standard DIN rail (2 TE width), the Steinel Universal 2-Channel Input UI2 KNX-S offers flexible functionality, secure communication, and dependable performance — making it an ideal choice for modern smart building installations.