THERMIQ MULTISWITCH, wifi
3 F820 66
3 F820 66
The HERZ MultiSwitch WiFi relay enables wireless control of smart home devices and supports smart automation with the HERZ Thermiq Heat Guard sensor. Its compact design fits into standard boxes or on a DIN rail, requiring a ZigBee gateway for operation. It integrates with the HERZ Thermiq App and supports voice control via Amazon Alexa and Google Home.
| IDENT | EAN | POWER SUPPLY | L1 [mm] | L2 [mm] | H [mm] |
| 3 F820 66 | 3838963245063 | 230 V AC, 50 Hz | 46 | 24 | 46 |
The HERZ Thermiq system offers flexible communication options, allowing connection through three different versions, depending on the product type:
• Wired
• Wi-Fi
• Zigbee
Each version ensures reliable data exchange between room controllers, actuators, and the central control unit, while maintaining compatibility across the HERZ Thermiq ecosystem.
The MultiSwitch ZigBee relay enables wireless control of various devices within a smart home, such as heat sources, circulation pumps, fans, lighting, gates, and electric heaters.
It supports connection of the HERZ Thermiq Heat Guard temperature sensor, allowing the creation of smart rules and automation scenarios based on temperature readings.
The compact design fits into a standard installation box, making it ideal for mounting behind a light switch or mains socket. It can also be installed on a DIN rail using the supplied bracket. A ZigBee internet gateway is required for its correct operation.
The relay integrates seamlessly with the HERZ Thermiq App and supports voice control via Amazon Alexa and Google Home, offering flexible and intelligent home management.
Product highlights
• Wireless control of multiple electrical devices
• Supports HeatGuard temperature sensor for smart automations
• Compact design for in-wall or DIN rail installation
• Compatible with Amazon Alexa and Google Home
• Enables creation of smart rules and scenarios
• Reliable Wi-Fi communication within the HERZ Thermiq ecosystem
• Wired
• Wi-Fi
• Zigbee
Each version ensures reliable data exchange between room controllers, actuators, and the central control unit, while maintaining compatibility across the HERZ Thermiq ecosystem.
The MultiSwitch ZigBee relay enables wireless control of various devices within a smart home, such as heat sources, circulation pumps, fans, lighting, gates, and electric heaters.
It supports connection of the HERZ Thermiq Heat Guard temperature sensor, allowing the creation of smart rules and automation scenarios based on temperature readings.
The compact design fits into a standard installation box, making it ideal for mounting behind a light switch or mains socket. It can also be installed on a DIN rail using the supplied bracket. A ZigBee internet gateway is required for its correct operation.
The relay integrates seamlessly with the HERZ Thermiq App and supports voice control via Amazon Alexa and Google Home, offering flexible and intelligent home management.
Product highlights
• Wireless control of multiple electrical devices
• Supports HeatGuard temperature sensor for smart automations
• Compact design for in-wall or DIN rail installation
• Compatible with Amazon Alexa and Google Home
• Enables creation of smart rules and scenarios
• Reliable Wi-Fi communication within the HERZ Thermiq ecosystem

EG-Conformity
By affixing the CE mark to the unit the manufacturer declares that the HERZ Thermiq conforms to the following relevant safety regulations:
• EU low voltage directive 2014/35/EU
• EU electromagnetic compatibility directive 2014/30/EU
• EU RoHS Directive 2011/65/EU
• EU WEEE Directive 2012/19/EU (Reg.nr. DE 23479719)
Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on file by the manufacturer.
Declaration of conformity - SLO, ENG, DEU
By affixing the CE mark to the unit the manufacturer declares that the HERZ Thermiq conforms to the following relevant safety regulations:
• EU low voltage directive 2014/35/EU
• EU electromagnetic compatibility directive 2014/30/EU
• EU RoHS Directive 2011/65/EU
• EU WEEE Directive 2012/19/EU (Reg.nr. DE 23479719)
Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on file by the manufacturer.
Declaration of conformity - SLO, ENG, DEU
| Parameter |
Value |
||
| Communication | WiFi 2.4Ghz | ||
| POWER SUPPLY | 230V AC | ||
| Output |
|
||
| Input |
|
||
| Max. load | 16 (A) |
HERZ MULTISWITCH relay description:
1. Power supply 230V AC
2. Volt free output
3. Volt free input or input for connecting the Thermiq HeatGuard temperature sensor
4. Function button
5. LED diode indicating the status of the module.



Safety information and installation
Use in accordance with national and EU regulations. Use the device only as intended, keeping it in a dry condition. The product is for indoor use only. Please read the entire manual, before installation or use. Installation must be performed by a qualified person with appropriate electrical qualifications, in accordance with the standards and regulations in force in a given country and in the EU. The manufacturer is not responsible for noncompliance with the instructions.
For the entire installation, there may be additional protection requirements, which the installer is responsible for.


Use in accordance with national and EU regulations. Use the device only as intended, keeping it in a dry condition. The product is for indoor use only. Please read the entire manual, before installation or use. Installation must be performed by a qualified person with appropriate electrical qualifications, in accordance with the standards and regulations in force in a given country and in the EU. The manufacturer is not responsible for noncompliance with the instructions.
For the entire installation, there may be additional protection requirements, which the installer is responsible for.


