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Heatit Z-Relay 25A
  • Heatit Z-Relay 25A

Heatit Z-Relay 25A

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Heatit Z-Relay 25A multipurpose relay module can be used for many different applications. 

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

- Boiler control;

- Leakage control;

- Temperature control;

- Outdoor applications.

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Important notes

Power supply must be 100 - 240 VAC and does require NEUTRAL Wire (NUL);

- A Z-Wave Hub is required!

- Designed to be installed on the wall.

- It can control 1 circuit.

- Do not connect loads greater than those recommended!

- Do not connect the power supply without a load!

Way it works

The Heatit Z-Relay is a Z-Wave module in a water-resistant housing equipped with 10 membrane cable entries. 

The Heatit Z-Relay is equipped with 1 relay output and 3 multi-purpose inputs, and a Z-Wave radio for interfacing to the wireless Z-Wave network. The module must be power supplied from a 230V AC mains connection. 

Two of the Heatit Z-Relay inputs can be configured to function as either digital inputs or as analog inputs for interfacing simple NTC temperature sensors.

When the inputs are used as digital inputs, they can be connected to potential free contacts, open-collector outputs, and will be able to control other Z-Wave devices when the status of the inputs sent to other Z-Wave devices on the Z-Wave network.

The last input can be used as either digital input or be used to be connected to a flood detector.

Heatit Z-Relay diagram.png

Notes for diagram:

L - terminal for Live wire (100 - 240 VAC);

N - terminal for Neutral wire;

OUT - terminal of the connected load;

NTC 1, NTC 2 - NTC sensors can be connected;

Water leak sensor - A water leak sensor can be connected.

Where it works

The Heatit Z-Realy high-duty relay output can be freely controlled from the Z-Wave network and can be used for several purposes:

- Control of valve actuators, stoves;

- Boiler control;

- Leakage control;

- Temperature control;

- Outdoor applications.


Multipurpose product for many different applications

3 inputs. Combinations of analog/digital inputs of your choice

25A Relay

External antenna option

Can be used with different NTC-sensors


Firmware updates (OTA)

Power metering

Tech Specs

Power supply


230V AC, 50 Hz

Max load

5750 W (resistive load)

750 W self-limiting heating cable


315mA 250V AC SLOW

Max current

25 A

Operating temperature

- 20 up to 40 °C

Compatible with NTC sensors

10, 12, 15, 22, 33 or 47 kΩ @ 25 °C

IP Class

IP 55


Input impedance: 10 kΩ

Loop output voltage: 3.3V DC

Relay outputs

Rated carry current: 25 A

Max switching voltage: 277V AC

Max switching current: 25 A


up to 50 m (depending on surroundings)

Dimensions (L x W x D)

100 x 100 x 46 mm


Data sheet


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