Rond 24V KNX Trimless Retrofit Push Button

The essence of invisible home technology - the 24V Trimless Push Button by rond is has a design that is contemporary and minimalist. The KNX-native version carries the interface inside the switch - no separate interface is needed. Rotatable every 45°, the KNX Push Button is compatible with all rond 2.0 installation kits. Available with two-fold or four-fold configurations, for elegant and sleek control. 

• Trimless design (Ø48mm) for a fully flush finish
• The ultimate look but it requires perfect installation of the installation ring
• Potential-free push button - dimming supported when used with a compatible push-dim (switch-dim) driver

 
Retrofit Plaster Ring (required)

• For plasterboard and brick work installation
• Fits in universal Ø68 junction boxes. The ultimate solution for universal junction boxes, round or square
• Thanks to the rond removal tool, electrical connections remain accessible, even after plastering
• Electrical housing box (45mm deep) required - View Datasheet

Multiple finishes available

• Basic - white, black, cream or grey
• Aluminium - white or aluminium
• Brass - brushed nickel, brushed brass, light bronze, dark bronze, canon de fusil dark (gun metal) and canon de fusil light

Simple access after install
Removal tool for easy removal post install 

Install where you want
Installing in wood, veneer, stone, brick or plaster? Choose the appropriate kit for your project - retrofit for plastered and brick walls, multifit for wood, veneer and stone panels with a min depth of 10mm and a maximum of 30mm.

Not sure which fitting you need?
Check out our rond product comparison guide.

Good To Know...

Custom finishes available: personalise with veneer to match furniture installation.

For more info contact us on:

  [email protected]

  01189 882294

or on our website Live Chat

Type: KNX push button
Flush-mounting depth (retrofit/backfit): 36mm
Flush-mounting depth (multifit): 55mm
Adjustability: every 45° rotatable
Ambient temperature: -5 till +40°C
IP, IK rating: IP21-D IK06
Marking: CE

KNX specs

Wiring: KNX bus
Wire stripping length: 5 - 6 mm
Bus current: < 10mA
Class: class III
Safety: KNX secure 
KNX medium: TP256
Relative humidity: max. 93%

Compatible with rond 2.0 retrofit/easyfit/backfit install kits

Housing Box:
Product Description: 45mm Deep European Wall Box (Orange)
Dimensions: 70mm(h) x 72mm(w) x 47mm(d)
Net Weight: 21g
View Datasheet

Product dimensions: D.36mm x Diameter.48mm

• Data Sheet PDF
• Install Instructions PDF
• Retrofit Plaster Ring Short Install Instructions PDF
• Rond Product Comparison Guide PDF
• Datasheet | Housing Box | PDF

FAQ: rond 24V KNX Push Button

What is a KNX push button?
The KNX-native version of the rond 2.0 push button removes technical barriers. No separate interface needed anymore. Up to ten wires become just two. Fewer terminals, fewer chances of a false connection, less time spent on installation. 

Is the rond push button compatible with dimming?
Yes. The rond 24V push button supports dimming when paired with a compatible push-dim (switch-dim) driver.

What size is the rond 24V push button, and does it come in a trimless design?
Yes. The rond 24V push button has a trimless design with a Ø48mm cutout, giving it a fully flush, minimalist finish once installed. Achieving this look does require precise installation of the installation ring — see below for wall compatibility.

Can it be installed in any wall type?
This version of the rond 24V Push Button is suitable for:

• Plasterboard
• Brickwork

What installation kit do I need?
A separate retrofit plaster ring and a 45mm-deep electrical housing box are required for plasterboard/brick installation.

Not suitable for wood panels, veneer panels, or stone and marble panels. For those materials, use the multifit kit instead (for wood, veneer, and stone panels between 10mm–30mm deep). 

Does the rond push button have a built-in temperature sensor?
Yes. It includes an invisible NTC temperature sensor, integrated seamlessly into the minimalist design without affecting its trimless finish.

Can the button orientation be adjusted after installation?
Yes. The push button is rotatable every 45°, so it can be aligned to your preferred orientation regardless of how the housing box was originally installed.

What configurations and finishes are available?

• Configurations: Two-fold or four-fold button layouts
• Finishes: Basic (white, black, cream, grey), Aluminium (white, aluminium), Brass (brushed nickel, brushed brass, light bronze, dark bronze, canon de fusil dark, canon de fusil light)

What are the RAL colours for the white and cream cover plates?
The white cover plate is RAL 9003, and the cream cover plate is RAL 1013.

Is it compatible with other rond products?
Yes. The rond 24V push button is compatible with all rond 2.0 installation kits, making it easy to combine with other rond switches and sensors in the same installation.

What if I need to access the wiring after installation?
The rond retrofit ring is designed with a dedicated removal tool, so electrical connections stay accessible even after plastering — making future maintenance or adjustments straightforward.

 Delivery

Currently in stock - next day UK delivery

When out of stock delivery from Belgium usually within 2-3 weeks

August factory shutdown

Lead times in July and August can be affected by European manufacturer summer shutdowns. Need it in a hurry? Let us know and we'll check availability for you.

A collection of minimalist designer UK switchless power sockets, data ports, 24V push buttons and 230V switches from Belgium. Perfect for both modern home conversions and for professional projects, rond by prado offer outstanding build quality with a stunning selection of solid brass finishes. 

Not sure which rond fitting you need? Our rond product comparison guide has everything you need to know.

Get in touch to order sample kits, or for any questions or technical enquiries

   [email protected]

   01189 882294 or on our website Live Chat