In a sauna, electrical cables face especially harsh conditions: high temperature, moisture, and steam. Ordinary wires under such conditions age quickly, their insulation cracks, which poses a risk of short circuit and fire. Therefore, special heat-resistant wires are needed for sauna heaters, control panels, sensors, and lighting. Read more
What cables do manufacturers require? Sauna heater manufacturers specify that wires installed in the sauna higher than 1 m from the floor or inside walls must withstand a temperature of at least 170 °C. Such wires are usually with silicone insulation, because silicone remains flexible and reliable even under prolonged heat.
Where are they used?
- heater connection in the junction box in the sauna;
- connection of the control panel, temperature and humidity sensors;
- sauna lighting installation;
- other electrical equipment installed in the sauna room.
How to choose the right wire? The number of wire conductors and cross-section depend on the heater power, supply voltage (single-phase or three-phase), and connection scheme. You will find this data in the installation instructions for the heater or panel. If you are unsure, write us the equipment model, and we will help choose.
Important: the sauna electrical installation must be carried out by a qualified electrician, following the equipment manufacturer's instructions and the applicable electrical installation rules. In the sauna, use heat-resistant junction boxes as well.
Information last checked 2026-10-30
