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VMB8PBU - Push-button interface with 8 channels for universal mounting

Connect any type of switch to control anything on the bus. Also use the feedback options to verify instantly whether the commands were executed. Verify whether the lights in the children's rooms are off and intervene when necessary. Switch everything off when leaving, choose the desired atmosphere or have it set automatically in the evening: these are only a few of the possibilities. With electronic addressing and a lot of extra functionality (alarms, sunrise-related yearly programs, multi-button operation etc. ...)


  • Only a qualified professional may carry out the installation in conformity with in force legislation and standards.

  • protocol manuals for developers

    available for download at https://github.com/velbus

  • connection possibility for up to 8 pushbuttons
  • connection possibility for a notification LED for each pushbutton (common anode)
  • backlit pushbuttons (if LEDs are connected)
  • complete configuration via Velbus PC interface (e.g. VMB1USB)
  • up to 250 addresses
  • reaction time for each pushbutton of 0, 1, 2 or 3 seconds
  • all settings are memorized in case of a power failure
  • comes with bus connection plug and wiring (wires may not be lengthened)
  • required power voltage: 15±3VDC
  • stand-by power consumption: 16mA
  • max. power consumption (all LEDs activated): 35mA
  • dimensions: 40x30 x14mm / 1.57 x 1.18 x 0.55"
  • wire length (for button connections): 20cm


PDF-File Extended user manual for VMB8PBU
Extended manual that explain how to use all possibilities of the 8-channel pushbutton module
PDF-File Mounting instructions


EXE-File VelbusLink 10.6.5 (EN/NL/FR) - Latest version (10/21/2021)
Free Windows program to configure and program a Velbus installation (latest version - 10/21/2021)
PDF-File Velbus Installation Guide, Part 1: Hardware and Cabling
Everything you need to know about the Velbus hardware
PDF-File Velbus Installation Guide, Part 2: Configuration
How to configure Velbus modules using the free software VelbusLink
PDF-File Velbus Troubleshooting Guide
Step-by-step guide for solving Velbus problems.
EXE-File VelbusLink 10.5.1 (EN/NL/FR) - Previous version
Previous version of VelbusLink
XLSX-File Velbus consumption calculator
Spreadsheet to calculate the number of power supplies you need in a Velbus installation.

Info Sheets

PDF-File Infosheet
Connecting a LED on a Niko™ pushbutton
PDF-File Infosheet
Connecting a LED on a bticino™ pushbutton
PDF-File Infosheet
HTML-File Velbus actions by module (click on an action to see a description)
List of actions per module
Q. Using a glass control module as code keypad
A. Velbus input modules can be used as simple code keypads by configuring the right set of actions. Read more...(PDF)
Q. How can I connect a feedback LED to VMB8PBU buttons?
A. See the diagram below. "C" should be connected to the VMB8PBU COM, "PB" to the push-button connection of the relevant channel.