Correct way to choose your devices

Choosing Your KNX Devices

How to select the right brand, the right actuator, and the right specs for your project

Watch The Lesson

Arabic Version

What You Will Learn

KNX Device Categories

How to Choose A brand

Actuator Selection

Reading your Project Scope

Key Concepts Explained

How to Choose a brand

With over 500 KNX manufacturers in the market, choosing the right brand is a critical decision. Evaluate every brand on these five criteria:
1. Availability in Your Market
2. Technical Support
3. Warranty & Quality
4. Product Range
5. Price

Actuator Selection Step by Step

The actuator is the most important device to select correctly because the client never sees it — it lives inside the electrical panel. Getting it wrong affects the entire system.
Step 1: Identify the Load Type What are you controlling? Lighting (on/off, dimming, DALI, RGB), HVAC (fan coil, split unit, VRF), or blinds/shutters? Each load type requires a different actuator.
Step 2 Count Your Circuits (Channels) How many independent circuits do you need to control? For example: 13 lighting circuits = 13 channels. You can use one 16-channel actuator or two 8-channel actuators.
Step 3 Calculate the Load per Circuit Add up the total wattage on each circuit. For example: 10 lamps × 50W = 500W per circuit. Your actuator must be rated to handle this load safely.
Step 4 Choose the Right Size Larger actuators (16-channel) are efficient but create a single point of failure. Smaller actuators (8-channel) give you redundancy — if one fails, you can redistribute loads to the other while you wait for a replacement. Always keep a spare actuator on-site for critical projects.

Extracting Device Specs From Projects Documents

Remember These Three Things

Choose the right brand for reliability and support

Select the right actuator based on your load

Read your project documents carefully for accurate specs