Timeless design combined with functionality


The new iSwitch+, the improved version of the legendary thermostatic KNX switch series of Interra takes attention with its clear straight lines and architecturally harmonious and fascinating colors and materials. The new monoblock design of iSwitch+ has become more practical in terms of mounting by the screwless mounting facility. With its unique and elegant design, iSwitch+ is the favorite choice of interior architects.


iSwitch+ is more than a room controller with its temperature and humidity sensors and extremely powerful control and logic options. It comes with 8 different button options and it has 2 main models. One is a thermostat switch model that differentiates itself with its LCD dimension from its competitors and the other is a classic one without LCD. It controls all functions required for building automation, such as switching, toggle, dimming, shutter/blinds, thermostat controls, scenes, value, 2 channels, and step switching mode features.


Each push button is equipped with RGB LEDs with adjustable light intensity in blue/green or white/red color combinations for feedback or visualization, and the LCD models are equipped with VA-Display technology. There are 2 hidden push buttons with short press and long press events, located up and down below the frame of the LCD, making it a unique device to control all thermostat functions over LCD buttons. It provides great project flexibility so other push buttons can be arranged for other controls.

INTERRA Products

Details of Products!

New Easy Mounting Style

New Easy Mounting Style

iSwitch+ provides extra time e‑iciency, thanks to the new monoblock design and easy mounting installation.

New Homogenic RGBW LEDs

New Homogenic RGBW LEDs

iSwitch+'s new homogenous RGBW feedback LEDs provide flexibility and customizable color options for your projects to reflect your style.

New Press Sound & Press Felling

New Press Sound & Press Felling

The increased mechanical design of iSwitch+ provides a better experience on press feeling and press sound.

New Digital & Analog Inputs

New Digital & Analog Inputs

iSwitch+ has 2 inputs that can be used as analog or digital. It allows you to control the room temperature with NTC sensors and optimize the lighting with LDR sensors.

New Built-in Sensors

New Built-in Sensors

iSwitch+ has built-in temperature, humidity, and brightness sensors to provide more information about the environment. Also, it has an optionally built-in air quality sensor. (0-500 VOC Index)

Advanced LCD Functions

Advanced LCD Functions

New advanced LCD functions such as room temperature, temperature set point, humidity, CO2 concentration, outdoor temperature, fault, and emergency LCD icons, and LCD backlight control via brightness sensor.

New Interra iSwitch+ Series

ITR340-XX21 // iSwitch+ Stainless Steel Antique Copper Series

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