Why Choose the Finder 1K.UB.9.030 KNX USB Interface?
The Finder 1K.UB.9.030 is a compact, professional KNX USB interface designed to connect a computer to a KNX building automation system. Part of the Finder 1K Series, this DIN rail-mounted communication module provides a convenient connection between the KNX twisted-pair bus and a PC running compatible ETS (Engineering Tool Software).
Designed for professional KNX installation, configuration and maintenance, the Finder 1K.UB.9.030 allows engineers and system integrators to communicate with KNX devices through a standard USB connection. It is particularly useful when commissioning new building automation installations, modifying existing KNX configurations, performing diagnostics or maintaining a KNX system.
The interface operates from the 30 V DC KNX bus supply and features a USB Type-B connector, KNX bus terminal and integrated LED status indication. Its slim 17.8 mm width occupies approximately one modular unit on a standard DIN rail, making it ideal for electrical distribution boards and automation cabinets where installation space is limited.
With an IP40 protection rating, an operating temperature range of −5 to +45 °C and compatibility with ETS 3 or later, the Finder 1K.UB.9.030 provides a practical solution for connecting a commissioning computer to a KNX installation.
Whether working on residential smart homes, commercial offices, hotels or larger building management systems, the Finder 1K.UB.9.030 KNX to USB interface helps provide the communication access needed for professional KNX engineering.
Key Advantages
- Genuine Finder 1K.UB.9.030 KNX USB interface for building automation systems.
- Provides a convenient communication connection between a computer and a KNX installation.
- Designed for the KNX twisted-pair (KNX TP) bus.
- Compatible with ETS engineering software for KNX programming and commissioning.
- Supports ETS 3 and later versions, subject to computer and software compatibility.
- USB Type-B connection for communication with a compatible PC.
- Operates from the 30 V DC KNX bus.
- Compact 17.8 mm modular width saves valuable DIN rail space.
- Suitable for standard 35 mm DIN rail mounting.
- Integrated LED status indicator provides visual information about the KNX bus.
- Ideal for installation, configuration, diagnostics and maintenance.
- Suitable for residential and commercial KNX building automation projects.
- Provides a dedicated wired communication interface for local KNX engineering.
- Does not require a separate mains power connection.
- Compact enclosure with IP40 ingress protection.
Key Features
- Finder 1K.UB.9.030 KNX to USB communication interface.
- Part of the Finder 1K Series KNX product range.
- Designed for standard KNX TP building automation networks.
- Connects a KNX bus installation to a compatible computer.
- USB Type-B connector for PC communication.
- Dedicated KNX bus terminal.
- 30 V DC KNX bus supply.
- Supports ETS 3 or later.
- Suitable for KNX device configuration and commissioning.
- Integrated LED indication for KNX bus status.
- Single-module DIN rail housing.
- 17.8 mm overall width.
- 89.8 mm height.
- 59.8 mm depth.
- IP40 protection rating.
- Operating temperature: −5 to +45 °C.
- Designed for installation in suitable indoor electrical enclosures.
- Suitable for professional KNX system integrators and electrical contractors.
How the Finder KNX USB Interface Works
The Finder 1K.UB.9.030 acts as a communication interface between a KNX twisted-pair network and a computer running compatible KNX engineering software.
KNX is an internationally recognised building automation system used to integrate functions such as lighting, heating, ventilation, shading, energy management and other building services. Devices communicate across a shared KNX bus, allowing different automation functions to operate as part of a coordinated installation.
When installing or maintaining a KNX system, engineers need a method of communicating with the bus from a computer. The Finder 1K.UB.9.030 provides this connection through its USB Type-B interface.
The KNX side connects to the installation's twisted-pair bus, while the USB side connects to a compatible PC. Once the appropriate software and connection are configured, the engineer can use ETS to perform supported programming, configuration and diagnostic operations.
The interface is designed for local, wired engineering access. It does not independently control lighting, operate relays or provide a network gateway for remote internet access.
This distinction is important when selecting a KNX communication device. The Finder 1K.UB.9.030 is a KNX USB interface, not a KNX IP router, Ethernet gateway, actuator or KNX bus power supply.
Designed for ETS Programming and KNX Commissioning
The Finder 1K.UB.9.030 KNX USB interface is intended for use with ETS (Engineering Tool Software), the standard engineering environment used to design, configure and commission KNX installations.
During initial commissioning, an engineer may need to assign physical addresses to KNX devices, download application configurations and verify that the installed equipment communicates correctly.
With the Finder interface connected to the KNX bus and a suitable computer, ETS can communicate with the installation to carry out supported engineering tasks.
The interface can also be useful during maintenance. For example, when a lighting actuator is replaced or a building automation function is modified, an engineer may need to reconnect to the KNX installation to update device parameters or verify communication.
Finder documentation identifies compatibility with ETS 3 or later. Actual use with a particular ETS release, operating system or USB driver should be confirmed against the current software requirements before installation.
The USB connection is intended for a local computer. For projects requiring permanent network-based access, remote commissioning or communication over Ethernet, a suitable KNX IP interface or router should be selected instead.
Compact Single-Module DIN Rail Installation
One of the key advantages of the Finder 1K.UB.9.030 is its compact DIN rail housing.
With a width of just 17.8 mm, the interface occupies approximately one modular position in a suitable electrical distribution board or automation cabinet.
The overall enclosure dimensions are approximately 89.8 mm high, 17.8 mm wide and 59.8 mm deep. This compact format helps installers incorporate a dedicated KNX programming connection without occupying excessive panel space.
The module is designed for mounting on a standard 35 mm DIN rail, allowing it to be installed alongside other modular KNX equipment such as power supplies, actuators and interface devices.
Its integrated LED bus status indicator provides a useful visual reference when checking the condition of the KNX connection.
The IP40 protection rating makes the module suitable for use within appropriate indoor electrical enclosures. The surrounding cabinet must provide any additional environmental protection required by the installation.
Integration with KNX Building Automation Systems
The Finder 1K.UB.9.030 is suitable for KNX installations incorporating compatible devices from different manufacturers, provided they comply with the relevant KNX communication requirements.
Because KNX is an open building automation standard, a single installation may include lighting actuators, room controllers, push-button interfaces, heating controls, occupancy sensors and other devices.
The Finder USB interface provides a connection between the engineering computer and the KNX bus, helping installers access the system through ETS.
Typical engineering activities may include commissioning lighting circuits, adjusting room-control parameters, updating group-address assignments and diagnosing communication problems.
The interface does not replace the KNX power supply. A correctly designed KNX installation requires a suitable bus power supply, typically providing a nominal 30 V DC output to the KNX network.
The Finder 1K.UB.9.030 obtains its operating supply from the KNX bus and must be connected according to the manufacturer's instructions.
KNX USB Interface vs KNX IP Interface
| Feature |
Finder 1K.UB.9.030 KNX USB Interface |
Typical KNX IP Interface |
| Computer connection |
USB Type-B |
Ethernet / IP network |
| KNX connection |
KNX twisted-pair bus |
KNX bus or supported KNX IP network |
| Typical purpose |
Local ETS programming and diagnostics |
ETS access over an IP network |
| Network infrastructure |
No Ethernet network required |
Requires suitable IP connectivity |
| Installation format |
Compact DIN rail module |
Depends on the selected product |
| Remote access |
Not provided directly |
Depends on device capabilities and network configuration |
The Finder 1K.UB.9.030 is particularly useful when an engineer requires a straightforward local connection to the KNX bus.
A KNX IP interface may be more appropriate where programming access is needed over an existing building network or where an installation requires a permanent Ethernet connection.
The correct choice depends on the project's communication requirements, network infrastructure and commissioning arrangements.
Installation and Electrical Safety Considerations
The Finder 1K.UB.9.030 should be installed by a competent person familiar with KNX building automation equipment and the relevant electrical installation requirements.
Mount the device on a suitable 35 mm DIN rail within an appropriate electrical enclosure. Connect the KNX bus using the designated terminal and observe the manufacturer's connection instructions.
The interface is designed for a nominal 30 V DC KNX bus supply. It must not be connected directly to a 230 V AC mains supply.
Use a suitable USB cable to connect the interface to a compatible computer when engineering access is required. The cable and computer connection should be arranged to avoid mechanical strain and interference with adjacent electrical equipment.
Maintain the separation required between KNX bus wiring and mains-voltage conductors. Follow applicable wiring regulations and the manufacturer's installation guidance.
Before carrying out wiring changes, isolate the relevant electrical supplies and verify that the installation is safe to work on.
The Finder 1K.UB.9.030 is a communication interface only. It does not provide circuit isolation, electrical switching, overload protection or a replacement for the KNX system power supply.
Typical Applications
- KNX building automation system commissioning.
- ETS programming and configuration of KNX devices.
- KNX bus diagnostics and maintenance.
- Residential smart home installations.
- Commercial office automation systems.
- Hotel and hospitality building controls.
- KNX lighting management installations.
- Heating, ventilation and air conditioning automation.
- Blind and shutter control systems.
- Energy management and building monitoring projects.
- Educational and institutional building automation.
- Electrical distribution boards containing KNX equipment.
- Automation cabinets requiring compact local programming access.
- System modifications and replacement-device commissioning.
- Professional KNX installation and integration projects.
