Without space on the distribution board, what to do?

There is no space in the distribution board, and now what to do? It is common for electricians to be hired to install a new electrical circuit, and not find space in the QDC. But rest assured, in this article the World of Electrical shows an excellent solution to this problem and according to the rules.

Planning a spare space at the QDC is very important, but most of the time, switchboards do not have this spare space for the need for new circuits such as air conditioning, pool pump, dedicated outlet and so on. The reserved space in the distribution board is already provided for in the NBR 5410 standard in item 6.5.4.7 which says: “In the distribution boards, a reserved space must be provided for future extensions, based on the number of circuits with which the board is effectively equipped, according to table 59 ”.

The reserved space in the distribution board is already provided for by the standard.
Reserve space in the distribution board.

As we know many houses are built without an electrical project, and this ends up making life difficult for the electrician who will carry out maintenance or future installation. In some cases it is necessary to break the wall, change the distribution board, redo the sizing and etc. It is a headache for the owner! So let’s get to know this solution that will help you 80% of the time when installing a new electrical circuit.

How to install a new circuit when QDC has no space?
Seriously, if you’ve never taken an electrical service and haven’t run out of space to add another breaker, you’re lucky! Because one of the most common activities of electricians is the installation of a new circuit for the outlet, for example, when it is necessary to install a point for air conditioning, dryer, microwave, freezer and etc. In this case, one of the best alternatives is to install a box with a circuit breaker and socket.

The circuit-breaker box with the built-in or overlapping socket as the name implies is a pass-through box responsible for storing a circuit breaker and a socket. One of the most comm

There is no space in the distribution board, and now what to do? It is common for electricians to be hired to install a new electrical circuit, and not find space in the QDC. But rest assured, in this article the World of Electrical shows an excellent solution to this problem and according to the rules.

Planning a spare space at the QDC is very important, but most of the time, switchboards do not have this spare space for the need for new circuits such as air conditioning, pool pump, dedicated outlet and so on. The reserved space in the distribution board is already provided for in the NBR 5410 standard in item 6.5.4.7 which says: “In the distribution boards, a reserved space must be provided for future extensions, based on the number of circuits with which the board is effectively equipped, according to table 59 ”.

The reserve space in the distribution board is already provided for by the standard.
Reserve space in the distribution board.

As we know many houses are built without an electrical project, and this ends up making life difficult for the electrician who will carry out maintenance or future installation. In some cases it is necessary to break the wall, change the distribution board, redo the sizing and etc. It is a headache for the owner! So let’s get to know this solution that will help you 80% of the time when installing a new electrical circuit.

How to install a new circuit when QDC has no space?
Seriously, if you’ve never taken an electrical service and haven’t run out of space to add another breaker, you’re lucky! Because one of the most common activities of electricians is the installation of a new circuit for the outlet, for example, when it is necessary to install a point for air conditioning, dryer, microwave, freezer and etc. In this case, one of the best alternatives is to install a box with a circuit breaker and socket.

The circuit-breaker box with the built-in or overlapping socket as the name implies is a pass-through box responsible for storing a circuit breaker and a socket. One of the most common uses of the circuit breaker box with a socket is precisely for the installation of air conditioning. But the box with socket and circuit breaker can also be used for the individual installation of any equipment such as printers, computers, microwaves, washing machines, and others.

Air conditioning box and socket 20a.
Circuit breaker box with a socket.

The NBR 5410 standard stipulates that every electrical circuit must be protected with a circuit breaker, which is the device that protects against overcurrent and short circuit. In item 5.3.1.1 it says that: “Live conductors must be protected, by one or more automatic disconnection devices against overloads and short circuits. Except for the cases in which the overcurrents are limited, provided for in item 5.3.7, and the cases in which it is possible or even recommended to omit such protections, dealt with in items 5.3.4.3, 5.3.4.4 and 5.3.5.3 ”.

So it is a rule, every new circuit that is installed must have a circuit breaker for protection! The outlet box with a circuit breaker is a solution for these cases of installing new devices, even when the switchboard is out of space.

A doubt that may arise regarding the installation of the circuit breaker box with socket, is whether the NBR 5410 standard allows the installation of a circuit breaker outside the distribution board. The NBR 5410 standard allows because in item 4.2.5.4 it says that: “In the division of the installation future needs must also be considered. The foreseeable expansions must be reflected not only in the power supply, as dealt within 4.2.1, but also in the occupancy rate of the ducts and distribution boards ”. So it is perfectly possible and according to the NBR 5410 standard to have a second protection box.

When making the purchase it is important to observe if the box with circuit breaker and socket already meets the norms and the standard of NBR 14136 sockets. The circuit breaker box with a socket usually comes with a 20A socket that is suitable for special equipment. The circuit breaker can be either a B curve or a C curve, this will depend on the need for the equipment installed.

A very important detail when installing a circuit breaker box with socket, is that selectivity must always be maintained, that is, there must be at least the general circuit breaker of the installation in the QDC before the box circuit breaker with circuit breaker and socket, in addition, it is remembered to dimension the circuit breaker according to the standard. As we said in the article, it is necessary to reserve space in the distribution board for future electrical circuits. In this video below the World of Electrical talks about the reserve circuit at QDC.

on uses of the circuit breaker box with socket is precisely for the installation of air conditioning. But the box with socket and circuit breaker can also be used for the individual installation of any equipment such as printers, computers, microwaves, washing machines and others.

Air conditioning box and socket 20a.
Circuit breaker box with the socket.

The NBR 5410 standard stipulates that every electrical circuit must be protected with a circuit breaker, which is the device that protects against overcurrent and short circuit. In item 5.3.1.1 it says that: “Live conductors must be protected, by one or more automatic disconnection devices against overloads and short circuits. Except for the cases in which the overcurrents are limited, provided for in item 5.3.7, and the cases in which it is possible or even recommended to omit such protections, dealt with in items 5.3.4.3, 5.3.4.4 and 5.3.5.3 ”.

So it is a rule, every new circuit that is installed must have a circuit breaker for protection! The outlet box with a circuit breaker is a solution for these cases of installing new devices, even when the switchboard is out of space.

A doubt that may arise regarding the installation of the circuit breaker box with socket, is whether the NBR 5410 standard allows the installation of a circuit breaker outside the distribution board. The NBR 5410 standard allows because in item 4.2.5.4 it says that: “In the division of the installation future needs must also be considered. The foreseeable expansions must be reflected not only in the power supply, as dealt within 4.2.1, but also in the occupancy rate of the ducts and distribution boards ”. So it is perfectly possible and according to the NBR 5410 standard to have a second protection box.

When making the purchase it is important to observe if the box with circuit breaker and socket already meets the norms and the standard of NBR 14136 sockets. The circuit breaker box with a socket usually comes with a 20A socket that is suitable for special equipment. The circuit breaker can be either a B curve or a C curve, this will depend on the need for the equipment installed.

A very important detail when installing a circuit breaker box with socket is that selectivity must always be maintained, that is, there must be at least the general circuit breaker of the installation in the QDC before the box circuit breaker with circuit breaker and socket, in addition, it is remembering to dimension the circuit breaker according to the standard. As we said in the article, it is necessary to reserve space in the distribution board for future electrical circuits. In this video below the World of Electrical talks about the reserve circuit at QDC.