Dimming actuator for DIN-rail mounting – 3 channels

Make up to three lights in your home smart with the Homematic IP dimming actuator - 3 channels.

Dimmer actuator for DIN-rail mounting – 3 channels

Dimmed from the control cabinet!

Dimmable lights make your Smart Home feel very homely! Only the constant need to manually adjust the lights is not particularly convenient. Especially if they are repeatedly switched on and off at the same time with the same dimming value. Save yourself the many clicks to adjust your lamps: The dimmer actuator is installed on the DIN-rail in the distribution cabinet and you can now use it to dim up to three lamps the smart way! This makes the actuator particularly suitable for conversions of e.g. attics or for retrofitting.

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Switching and dimming lights intelligently

Simply adapt up to three lights to your everyday life and create individual lighting scenes with them. And at any desired time - also depending on events such as sunrise and sunset.

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Switch and dim the lights almost steplessly as desired: grouped together, individually automated, via wired conventional push-buttons and switches, Homematic IP push-buttons and remote controls, by voice command, directly on the device or via your smartphone. At home and when you're out and about.

Haken mit Zahnrad und Uhr

Convenient installation

Connecting the actuator to rigid and flexible cables is particularly easy thanks to spring-loaded terminals.

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Even without settings, function and wiring can already be checked directly on the unit during installation. This is ensured by the illuminated display and the device keys.

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Certified with the VDE mark

This device is certified with the VDE mark, which attests to the product’s conformity with national and international standards and compliance with statutory safety requirements.

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Worldwide, the VDE mark on electrical products stands for protection and safety. Through comprehensive, neutral and independent testing of electrotechnical products, the VDE Institute is committed to their safety, electromagnetic compatibility and fitness for use. The VDE Institute also supports manufacturers’ investments in the quality of their products through its services.

Ten benefits of the VDE mark

verschiedene Glühbirnen

Suitable for many different lights

Lights that can be controlled:

  • Dimmable LEDs
  • Dimmable energy-saving lamps
  • Traditional incandescent lanps
  • HV halogen lamps
  • LV halogen lamps with electronic transformer
Haus mit Pluszeichen

The added value for a smart home

The actuator can be installed in the distribution cabinet. This makes it particularly suitable for extensions to your attic for example, or for retrofitting.

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In addition, the actuator offers three inputs that can be used to connect conventional pushbuttons for operating the lights in situ. How to replace traditional pulsed switching.

How to teach-in devices for light and shade control

Interested in the light and shade solution? This video shows how to teach-in a pluggable switch and shutter actuator for light and shade control. With the light and shade solution you can control the lightning specifically to your needs.

Your advantages at a glance

Do you want to live more safely, save money and protect the environment, or simply increase your living comfort? There are many good reasons for a Smart Home. Find out more now!

Control heating

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Save energy

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Use the app

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Connect devices together

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Homematic IP: Smart living. Simply exciting.

Homematic IP means modern, flexible and secure technology from the European market leader*. Let the advantages of our system win you over, and start living smarter straight away. 

Homematic IP
With some smart home providers, you have to make a choice: Do you have everything wired, or do you go fully wireless? Some systems are also hermetically sealed and do not accept devices from other manufacturers. Here at Homematic IP, we have a different approach. We are guided by you!
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The Homematic IP app

Configure all settings for your smart home in the Homematic IP app, which you can use to control, regulate and monitor your devices at any time. No personal data is collected except for the IP address.

Homematic IP Wired
A smart home system is particularly robust, interference-proof and reliable when the devices communicate with each other via wired connections. And data transmission is very fast with cables, too. That all comes together with Homematic IP Wired.
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Always here for you and your queries.

Whether you have a question about a product, something isn’t working as you wanted, you’re looking for a specialist partner, or you simply want to give us feedback: we are always here to help.

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FAQs

This is where you’ll find the most important questions and our answers about our smart home solutions.

Service

Service

Have you purchased a Homematic IP product and now have questions about how it works? Our technical support team will be happy to help you.

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Specialist tradespeople

Are you looking for a good specialist tradesperson near you? Simply use the convenient search function here on our website.

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Dealers

You can get Homematic IP products and good advice all over Germany. Find the right dealer near you here.

Innovations, ideas, impulses: your news

Get first-hand news about the latest innovative smart home solutions. 

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eQ-3 presents a comprehensively expanded portfolio
eQ-3 will be presenting the upcoming highlights of its Homematic IP smart home system at Light + Building 2026The company is expanding its product range with a fully integrated alarm system, introducing a smart solution for protection against water damage and adding intelligent lighting solutions, control elements and other automation components to its range.
08. March 2026

Order information

Product Name (Short)
HmIP-DRDI3
Item Number
154434A0
EAN Code
4047976544349

Technical data

Supply voltage
230 V~/50 Hz
Power consumption in standby
0.5 W typ.
Minimum load
3 VA
Switching capacity
200 VA
Dimming method
Trailing edge
Relay
Rigid and flexible cable, 0.75-2.5 mm²
Degree of protection
IP20
Dimensions (W x H x D)
72 x 90 x 69 mm (4 TE)
Ambient temperature
-5 to +40 °C
Weight
200 g
Radio frequency
868.0-868.6 MHz/869.4-869.65 MHz
Typ. open area RF range
190 m
Function type
Dimmer
Connection
Wireless
Installation
on mounting rail (DIN rail) according to EN 60715
Homematic IP User Guide

Version: July 2025

20.99 MB
Overview of Homematic IP QR Code Stickers
50.09 KB
Operating manual Dimming Actuator for DIN rail mount – 3 channels

Short description: HmIP-DRDI3 | Product reference: 154434A0

7.74 MB
Data sheet Dimming Actuator for DIN rail mount – 3 channels

Short description: HmIP-DRDI3 | Product reference: 154434A0

1.3 MB
Declaration of conformity Dimming Actuator for DIN rail mount – 3 channels

Short description: HmIP-DRDI3 | Product reference: 154434AxA

145.33 KB