The usefulness of the circuit breaker to protect the induction hob.

In the modern kitchen, the adoption of induction hobs is increasingly widespread thanks to their advantages in terms of efficiency, safety, and design. However, the importance of protecting the electrical system to which these high-performance appliances are connected is often underestimated. This is where the circuit breaker comes in, a crucial device for ensuring the safety of the system and the longevity of the induction hob .

What is a circuit breaker?

The circuit breaker , also known as an automatic switch , is a protection device that combines two fundamental functions:

• Thermal protection : intervenes in the event of overload (i.e. when the electrical load exceeds the circuit capacity).
• Magnetic protection : intervenes in the event of a short circuit , instantly interrupting the current to avoid damage to the system and connected appliances.

Why is it important for induction hobs?

Induction hobs require significant electrical power (often between 3.5 kW and 7.4 kW in the most advanced models), and for this reason they must be connected to a dedicated line, with correctly sized protection .

Without an adequate circuit breaker, an electrical fault could cause:

• Irreparable damage to the hob.
• Risk of fire or overheating of the electrical system.
• Power outages and cascading malfunctions on other appliances.

Which circuit breaker should I choose for an induction hob?

The choice depends on various factors:

• Hob power : the higher it is, the greater the current absorbed.
• System voltage : single-phase (230V) or three-phase (400V).
• Load type : Induction hobs are considered resistive-inductive loads, therefore they require a C or D trip curve.

A typical example:

• For a single-phase 7.4 kW induction hob, a C32 circuit breaker (32 Ampere, C curve) could be used, on a 6 mm² line.

It is essential to rely on a qualified electrician to correctly size both the circuit breaker and the cable cross-section.

Better with integrated differential?

There are circuit breakers (also called "magnetic- thermal circuit breakers") that also integrate protection against earth leakage . This type of protection is highly recommended in humid environments such as kitchens.

In particular, for induction hobs, a type A or, even better, type F differential circuit breaker is recommended, designed to manage fault currents generated by electronic devices such as inverters and converters, present in modern induction hobs.

🔎Find out what can happen without proper precautions

Conclusion

A circuit breaker is an invisible but essential ally in protecting your induction hob and the entire home electrical system. Investing in a safe, properly designed electrical installation equipped with appropriate protection devices means preventing costly damage , prolonging the life of your appliances , and enjoying the kitchen in complete safety .

For those designing or renovating their kitchen, the advice is clear: don't overlook the importance of the circuit breaker. It's a small component with a huge role in protecting the technology that makes our lives easier every day.

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