Switch Circuit Board

Integrate all conventional electrical devices into your Homematic IP smart home at a later date- with the Homematic IP Switch Circuit Board. 

Switch Circuit Board

Smart retrofitting, no matter what!

You already have a Homematic IP smart home system and would like to make a conventional LED light smart as well? With the Homematic IP Switch Circuit Board, you can do this without installing any additional actuators. You simply install the tiny circuit board in the device housing and now control the light through the wireless connection via the app, with the Homematic IP remote control, Amazon Alexa or Google Assistant. 

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Flexible use 

Switch all possible devices in your home: e.g. conventional household devices, light installations or garage doors. 

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You can switch connected devices on or off very conveniently via the Homematic IP app or radio remote control. 

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Invisible installation

With its compact design, the Switch Circuit Board can be easily installed in existing device housings or in your own projects - invisible from the outside.. 

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One device, many possibilities

Discover the various advantages of the Switch Circuit Board: 

  • The miniature relay has a switching capacity of up to 30 V/1 A
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  • If the miniature relay is not needed, it can simply be cancelled and you can use just the open-collector switching output with 30 V/0.5 A.
  • Can optionally be used to extend the range of the radio signal
  • Convenient and individual voice control (e.g. via Amazon Alexa or Google Assistant)

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 access

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Deter burglars

Homematic IP Alarmsirene außen an Hauswand
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Use the app

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Understand our products

Test
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05. July 2023

Travel with a safe feeling: How to protect your home with smart home technology

No one there to look after the house during the holidays? No problem, because your Smart Home protects itself: It keeps burglars away and lets you know immediately if something should happen.

Find out more

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. 

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.

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.

FAQ

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-PCBS
Item Number
150776A0
EAN Code
4047976507764

Technical data

Supply voltage
5 to 25 VDC
Current consumption
Without relay: 50 mA max., with relay: 70 mA max.
Switching current
1 A (miniature relay) and 0.5 A (open collector switching output)
Relay
Changeover contact, 1-pole, µ contact
Load type
Ohmic load
Cable type and cross section
Rigid and flexible cable, 0.75 to 1.0 mm²
Dimensions (W x H x D)
28 x 48 x 21 mm (incl. relay)
Ambient temperature
-10 to +35 °C
Weight
13 g
Radio frequency
868.0-868.6 MHz/869.4-869.65 MHz
Typ. open area RF range
350 m
Function type
Switch actuator
Connection
Wireless
Switching voltage
30 V max.
Homematic IP User Guide

Version: July 2025

20.99 MB
Overview of QR code stickers
1.46 MB
Operating manual Switch Circuit Board

Short description: HmIP-PCBS | Product reference: 150776A0

3.61 MB
Data sheet Switch Circuit Board

Short description: HmIP-PCBS | Product reference: 150779A0

1.01 MB
Declaration of conformity Switch Circuit Board

Short description: HmIP-PCBS | Product reference: 150776AxA

96.16 KB