The Interra iSwitch+ Aluminium series (ITR340-xxxx) is a KNX room controller line in natural or black aluminium finishes. Monoblock, screwless flush mounting and straight-line faceplates suit premium residential and hotel interiors.

Each device includes integrated temperature and humidity sensors and powerful KNX logic. Two platform types are offered: a thermostat model with VA LCD and two hidden keys below the display for HVAC menus, and a classic model without LCD. Push-button counts range from 2 to 10 keys. Every button has RGB status LEDs (blue/green or white/red, adjustable intensity). Bus functions cover switching, toggle, dimming, shutter/blind, scenes, value transmitters, two-channel modes, and step switching.

Key Features — Thermostat KNX Wall Controller

• Finishes: Natural aluminium (…10 suffix) and black aluminium (…11).
• LCD thermostat models: VA display; dedicated up/down keys under frame.
• Environmental sensing: On-board temperature and humidity for standalone HVAC logic.
• Flexible keys: 2, 4, 6, 8, or 10 push-button layouts per order code.

Manufacturer order codes (FM)

The Interra iSwitch+ Aluminium range has 16 order codes. Codes follow ITR340-XXYY: middle digits identify button count and model (thermostat with display vs classic), and 10 / 11 is natural or black aluminium finish. All variants are flush-mounted (FM).

Color / finish	10 keys	2 keys (classic)	2 keys (thermostat)	4 keys (classic)	4 keys (thermostat)	6 keys	8 keys (classic)	8 keys (thermostat)
Natural Aluminum	ITR340-0010	ITR340-1210	ITR340-0210	ITR340-1410	ITR340-0410	ITR340-0610	ITR340-1810	ITR340-0810
Black Aluminium	ITR340-0011	ITR340-1211	ITR340-0211	ITR340-1411	ITR340-0411	ITR340-0611	ITR340-1811	ITR340-0811

Select your finish and button layout above to see the exact manufacturer order code (SKU). Datasheets, manuals, ETS application, order-code reference PDF, and CAD are under Downloads.

Applications and KNX Integration

• Hotel rooms: Thermostat LCD models at bed head; classic models in bathrooms and corridors.
• Touch upgrade path: iX4 or iX3 in suites needing graphical UI.
• Occupancy: ITR415 presence sensor for ceiling automation.
• Loads: ITR504 / ITR512 combo actuators for switched and HVAC outputs.

Choosing iSwitch+ Aluminium

Select thermostat + LCD variants (e.g. ITR340-0210 2-key) where setpoint control is required on the plate; use classic variants for scene-only walls. Match finish suffix 10 or 11 to architectural metal palettes.