heatit z-relay

Heatit Z-Relay multipurpose relay module can be used for many different applications. The IP 55 rated casing makes it useful for any outdoor application. Can pull loads up to 16A and 25A.

The relay has three inputs: analog or digital. You can use both analog and digital inputs, or a combination.

Heatit Z-Relay is a multipurpose product and can be used for the following applications:

  • Boiler control
  • Leakage control
  • Temperature control
  • Outdoor applications

The relay has 3 analog/digital inputs and can be used with a lot of different sensors and meters such as NTC temperature sensors.

The relay comes in two different versions, 16A and 25A. They both have firmware updates (OTA), power metering and S2 security.

We are able to make special firmware if a customer has a special requirement.


Boiler control

We offer two relay modules 16A or 25A for boiler control. You can control your boiler and we have included power metering so you are able to keep control over the costs.

Mother and daughter intimate moment

Temperature control


We are able to control any electrical heating and cooling with the 2 x sensors. Either comfort temperature or max or min limitations.
Can be used in connection with Heatit Z-Temp sensor for optimal control.

Sweeping snow outdoors

Outdoor applications

The relay has a IP 55 casing and can be used for any thinkable application outdoors. Anything from watering in your garden,
frost protection or control of any heating device.

Leakage control

Leakage control with solenoid

We have developed the relay module to work with our leakage sensor. You can control the solenoid so you turn off the water supply when you are away. Automatically close the valve when there is a leak. The relay can be associated with several leakage sensors.



  • Multipurpose product for many different applications
  • Relay 16A or 25A
  • 3 inputs. Combinations of analog/digital inputs of your choice
  • External antenna option
  • Can be used in connection with different NTC-sensors
  • Calibration
  • Associations
  • Firmware updates (OTA)
  • Power metering
  • Multilevel sensor command class
  • Supports encryption mode: S0, S2 Access Control Class, S2 Authenticated Class, S2 Unauthenticated Class


Protocol Z-Wave
SDK 6.71.00
Rated voltage 230V 50/60Hz
Max load 3600W/5750W (resistive load) 750W self-limiting heating cable
Max current 16A or 25A
Power consumption <2,0W
Min/max installation temp -20°C – 40°C
Min/max operating temp -20°C – 40°C
Hysteresis 0,3°C – 3,0°C (default 0,5°C)
Compatible with NTC sensors with values 10, 12, 15, 22, 33 and 47 kΩ @ 25°C
Range Up to 50 meters (depending on surroundings)
IP Class IP 55
Size (LxWxD) 100 x 100 x 46 mm
Approvals Z-Wave Plus, CE, EMC 2014/30/EU, RoHS 2011/65/EU, LVD 2014/35/EU


2 years

Download documents

art. no. Product Z-Wave frequenCY
45 125 53 Heatit Z-Relay  16A EU 868,4 MHz
99 124 11 Heatit Z-Relay  16A BR 921,4 MHz
99 124 12 Heatit Z-Relay  16A US 908,4 MHz
99 124 13 Heatit Z-Relay  16A RU 869 MHz
99 124 14 Heatit Z-Relay  16A US2 916 MHz
99 124 15 Heatit Z-Relay  16A IND 865,2 MHz
45 125 54 Heatit Z-Relay  25A EU 868,4 MHz
99 124 31 Heatit Z-Relay  25A BR 921,4 MHz
99 124 32 Heatit Z-Relay  25A US 908,4 MHz
99 124 33 Heatit Z-Relay  25A RU 869 MHz
99 124 34 Heatit Z-Relay  25A US2 916 MHz
99 124 35 Heatit Z-Relay  25A IND 865,2 MHz
45 124 78 Probe for leakage sensor
88 114 85 Bürkert solenoid valve 1/2”
88 114 86 Bürkert solenoid valve 3/4”

The product must be installed in accordance with current version of the installation guide and national building codes. See the installation guide for further information.

© 2020 Heatit Controls