How to Protect Your KlassFan Ceiling Fan Against Power Surges?

Preserve the Durability of Your KlassFan Fan Against Power Surges

Electrical surges can seriously damage the electronic components of your ceiling fan. When the phase (the wire carrying the electrical load) experiences a surge and comes into contact with an electronic component, it can be damaged, even without a closed circuit. The severity of the damage depends on the intensity and duration of the surge.

To ensure optimal protection for your KlassFan fan, here are the essential recommendations to follow:

1. Always Use a Suitable Wall Switch

Using a wall switch is crucial for protecting the fan's electronic module. When the fan is on, this module is designed to transfer excess power to the motor, which is more resistant to voltage fluctuations. However, when the fan is off, it remains vulnerable if the phase is not properly isolated.

➡ Check your switch wiring:

• Ensure that the switch cuts off the phase and not the neutral.
• Use a tester screwdriver on the fan's terminal block: if the tester lights up when the switch is in the OFF position, it means that the switch is cutting off the neutral instead of the phase.
• In this case, reverse the switch connections to ensure a proper cut-off.

2. Avoid Two-Way Switch Configurations

Two-way switch wiring is common in home electrical installations but is unsuitable for ceiling fans.

❌ Why?
In this type of setup, the phase remains constant, and the neutral is used as the switch. However, to protect the fan’s electronic circuits, it is essential to isolate the phase by directly cutting off the power supply.

✅ Recommended Solution:
Opt for a simple switch that directly cuts off the phase to ensure effective isolation of the fan when it is powered off.

3. Adapt the Circuit Breaker in Case of Frequent Surges

If you notice frequent power surges in your installation, it may be necessary to modify the circuit breaker of the affected line in your electrical panel.

🔹 Two essential characteristics of the circuit breaker to consider:

• Rating: Indicates the protection capacity of the electrical circuit.
  • The NF C 15-100 standard recommends appropriate ratings for different types of devices.
  • For example, a 20 A circuit breaker is ideal for household appliances (dishwasher, oven, etc.), while a 32 A breaker is recommended for kitchen-specific circuits.
• Trip curve: Defines the sensitivity of the circuit breaker to surges.
  • Curve B: Suitable for circuits with low inrush currents (lighting, standard outlets).
  • Curve C: Recommended for standard household circuits, including ceiling fans.
  • Curve D: Suitable for devices requiring tolerance to current spikes (motors, air conditioners).

💡 KlassFan Recommendation: To effectively protect your fan, a curve C circuit breaker is generally the most suitable choice.

4. Install a Suitable Residual Current Circuit Breaker (RCCB)

A residual current circuit breaker protects against current leaks and the risk of electric shock. For sensitive devices like ceiling fans, it is recommended to choose an RCCB of type F or SI.

✔ Why choose these models?

• They offer better protection for electronic components against surges.
• They reduce the risk of untimely shutdowns and also protect other sensitive equipment (computers, freezers, alarm systems).

5. Important Reminder: KlassFan Warranty and Power Surges

It is essential to note that damage caused by a power surge is not covered by the KlassFan warranty. This is why it is imperative to take all necessary precautions to protect your ceiling fan.

➡ Summary of our recommendations:

✅ Cut the phase with a suitable wall switch.
✅ Avoid two-way switch installations.
✅ Check and adapt the circuit breaker if necessary.
✅ Install an RCCB of type F or SI.

By following these tips, you will optimize the longevity and proper functioning of your KlassFan fan while securing your electrical installation.

💡 Need additional advice?
Do not hesitate to contact our technical support for any questions related to the installation and protection of your KlassFan fan. 🚀

Useful Links:

• Build your KlassFan Modulo ceiling fan?
• Download our 2025 general catalog