Shower circuit breaker tripping, what to do?

The shower is one of the residential equipment that dissipates more power and because of its resistance to be in direct contact with water it requires a lot of care, in addition to the possibility of problems involving this equipment, know the reasons that make the circuit breaker trip when turning on the shower and how to solve this problem, come on!

The reasons that cause the circuit breaker to trip when the shower is in operation are many, the main one being the bad dimensioning of the circuit and the circuit breaker.

To find out why the circuit breaker is tripped due to the shower on, we need to understand how the circuit breakers work and what they are for.

What is a circuit breaker:

The circuit breaker is an automatic stretch when it identifies a short circuit or an overload the circuit is disconnected.

The circuit breakers are designed to withstand a certain electrical current, in the event of a peak current or a short circuit, which considerably raises the current above the limit, which is supported by the circuit breaker it will interrupt the circuit.

Why does the circuit breaker trip when the shower is turned on?

Now that we know how a circuit breaker works, we can understand why it disarms when the shower is turned on.

The causes that can cause the circuit breaker to trip due to the shower in operation are several, among them is to have exchanged the shower for another one of greater power, the dimensioning of the cables are with the section below the current that the shower requires or the distance from it to the circuit breaker.

To better understand, we will take into account a conventional shower of 5500W, connected to a supply voltage of 127V, so its current will be approximately 43A.

Bipolar circuit breaker and electric shower.

In this case, if we use a 40A circuit breaker it will not be enough and it will trip constantly., It will be necessary to have at least one 43A circuit breaker, also not being able to exceed this value much, otherwise it will not act correctly.

Taking into account the previous example, manufacturers require a cable with a section of at least 10mm2 for a voltage of 127V, remembering that the cable section can vary, as it will depend on the voltage, power and distance between the shower and the circuit breaker.

How to correct the circuit breaker trip according to the connected shower.

Circuit breakers can trip according to the shower switched on in various conditions, so it is ideal to be aware of situations in which the circuit breaker turns off the circuit and the time it takes for the protection device to be activated, if the circuit breaker cuts the circuit as soon as the shower it is turned on, because it has been in operation for a long time or just a few minutes after the shower is turned on, in addition to observing whether the general circuit breaker is also tripped and if in this condition two or more showers were on.

If the circuit breaker is disarming due to the exchange of the shower for another one of greater power, it is necessary to exchange the cables for others of a larger section, the shower circuit breaker and the general circuit breaker, with others that support a greater electron flow, because the value of the current changes considerably, remembering that the dimensioning of the circuit breakers is according to the value of the electric current.

Situations in which the circuit breaker turns off the circuit when two or more showers are being used at the same time is like the previous situation, but the risk is even greater, due to the high value of the electric current, so the circuit must be completely resized.

When the shower is turned on for a short time and the protection device trips, it may be due to the heating of the cables, because they are badly dimensioned or there is a short circuit.

Taking into account the situations above, it is of utmost importance that the entire circuit is properly sized according to the standards, so that the circuit breaker can correctly identify a short circuit and an overload in the circuit, remembering that the circuit breakers do not replace the residual differential device (DR) or the opposite.