Universal 4 channel Input UI4 KNX-S

Key Features

• Four-Channel Universal Input: Provides four independent, freely configurable inputs for connecting push buttons, switches, or potential-free contacts.

• Flexible Programming: Each input can be parameterised through ETS software to perform multiple KNX functions such as switching, dimming, scene control, and value transmission.

• Temperature Sensor Support: Compatible with external NTC temperature sensors, enabling accurate temperature measurement and integration with HVAC systems.

• Secure Communication: Fully supports KNX Data Secure for encrypted, tamper-proof data transmission, ensuring system reliability and protection against interference.

• Compact DIN-Rail Design: Housed in a 2-module (2 TE) width enclosure for easy DIN-rail mounting, optimised for compact electrical distribution boards.

• Status Indication and Manual Control: Includes integrated test buttons and LED indicators for clear visual status feedback and convenient commissioning.

Product Description

The Steinel 089238 Universal 4-Channel Input UI4 KNX-S is a versatile and compact input module designed for intelligent KNX-based building automation systems. It features four independently configurable channels, each capable of connecting to voltage-free contacts such as switches, push buttons, or window sensors. Every input can be programmed via ETS to carry out a variety of control functions, including lighting, shading, dimming, and scene activation.

In addition to digital input functionality, the UI4 KNX-S supports the integration of external NTC temperature sensors, allowing it to perform temperature monitoring and contribute to HVAC automation tasks. With built-in KNX Data Secure, the module ensures encrypted and reliable communication within the KNX network, providing enhanced data integrity and system security.

Its compact 2 TE DIN-rail housing allows for efficient use of space during installation, while front-mounted LEDs provide instant visual feedback for status and diagnostics. Combining flexibility, secure communication, and precision, the Steinel Universal 4-Channel Input UI4 KNX-S is an ideal choice for residential, commercial, and industrial automation projects requiring dependable KNX input integration.