Finder 1K.04.9.030 – 1K Series KNX interfaces

Why Choose the Finder 1K.04.9.030 KNX Universal Interface?

The Finder 1K.04.9.030 is a compact and versatile KNX universal interface with four digital inputs and four LED outputs, designed for intelligent building automation and electrical control systems. As part of the Finder 1K Series KNX interface range, it enables conventional push-buttons, volt-free contacts and compatible sensors to communicate with KNX building automation networks.

This universal interface provides a practical connection between traditional electrical control devices and modern KNX installations. Its four digital inputs allow conventional push-buttons and dry-contact devices to be integrated into a KNX system, while its four low-voltage LED outputs provide status indication for illuminated switches and control panels. Integrated logic functions enable more sophisticated automation behaviour without requiring additional external logic modules for every application.

With a 30 V DC KNX bus supply, IP40 protection rating and compact dimensions of just 34 × 34 × 11 mm, the Finder 1K.04.9.030 is ideal for recessed installation behind compatible wall switches and inside electrical mounting boxes. Its compatibility with ETS programming software makes it suitable for professional KNX lighting, building control and automation projects.

Key Advantages

• Compact KNX universal interface designed for intelligent building automation.
• Four digital inputs for connecting conventional push-buttons, sensors and volt-free contacts.
• Four low-voltage LED outputs for switch illumination and status indication.
• 30 V DC KNX bus supply eliminates the need for a separate mains power connection to the interface.
• Integrated logic functions provide flexible automation and control possibilities.
• Compatible with ETS 5 and later programming software.
• Ultra-compact 34 × 34 × 11 mm construction for installations with limited space.
• Supports the integration of conventional electrical accessories into KNX automation systems.
• Suitable for residential, commercial and intelligent building installations.

Key Features

• Finder 1K Series KNX universal interface.
• 1K.04.9.030 four-channel KNX interface.
• Four digital inputs for volt-free contacts.
• Four low-voltage LED outputs for status indication.
• 30 V DC nominal KNX bus supply.
• KNX communication protocol for building automation integration.
• Supports conventional push-buttons and compatible contact-based sensors.
• LED output channels suitable for illuminated switches and mimic display panels.
• Integrated AND, OR, NOT, XOR, NOR, NAND and XNOR logic operations.
• Supports byte-to-bit and bit-to-byte conversions.
• Configurable threshold functions for 1-, 2- and 4-byte values.
• Compatible with ETS 5 or later for configuration and commissioning.
• Compact recessed-mounting format.
• IP40 protection rating.
• Operating temperature range of -5 to +45 °C.

Reliable KNX Integration for Intelligent Building Automation

KNX universal interfaces such as the Finder 1K.04.9.030 enable conventional electrical control devices to communicate with intelligent building automation networks. When a connected push-button or volt-free contact changes state, the interface processes the input and communicates the corresponding information over the KNX bus. This allows traditional wall switches, contact sensors and other compatible devices to participate in coordinated lighting, shading and building control functions.

The Finder 1K.04 Series provides four independent digital inputs and four low-voltage LED outputs, making it particularly useful for multi-button control stations and illuminated switches. Its integrated logic functions support configurable automation operations, including logical combinations of input conditions, status processing and threshold-based control. The device can be programmed through ETS software to match the requirements of the KNX installation.

Its compact 34 × 34 × 11 mm dimensions make the interface suitable for recessed installation where mounting space is limited. The LED outputs are intended for low-voltage indication rather than direct switching of mains-powered lighting or motor loads; these loads must be controlled through appropriate KNX actuators.

Typical Applications

• KNX smart home and intelligent building installations.
• Integration of conventional push-buttons into KNX networks.
• Residential and commercial lighting control systems.
• Multi-button wall switch and control station interfaces.
• LED status indication for illuminated switches.
• Building shading and blind control command interfaces.
• Integration of compatible volt-free contact sensors.
• Office and commercial building automation.
• KNX control panels and mimic display installations.
• Recessed automation installations with limited mounting space.