Distribution board

Abstract

To provide a distribution board that facilitates operation for replacing an existing distribution board having a large-sized branch breaker.SOLUTION: A distribution board 1 has a base part 12, a plurality of branch breakers 4, and a spacer 5. The plurality of branch breakers 4 are aligned in one direction and disposed on the base part 12. The spacer 5 is disposed on the base part 12 between two branch breakers 4 among the plurality of branch breakers 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a distribution board, and more particularly to a distribution board having multiple branch breakers. [Background technology]

[0002] When using a distribution board, there are cases where the number of branch breakers attached to the distribution board is less than the maximum number of branch breakers for the board, such as when the number of branch circuits is less than the maximum number of branch breakers, when branch circuits are later removed, when a spare branch circuit is desired, etc. In such cases, it is common to provide spacers at the mounting positions of the branch breakers to make it easier to add branch breakers and to prevent electric shock from current-carrying bars and current leakage from current-carrying bars (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-96819 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when replacing a distribution board due to aging or other reasons, the replacement distribution board may have smaller distribution boards and branch breakers than the previous distribution board. In such cases, a larger distribution board with a larger number of branch breakers may be used to cover the wall holes for passing branch circuits and the undiscolored wallpaper that were hidden by the previous distribution board. However, simply replacing the old distribution board with a larger one can make it difficult to route the existing branch circuits to the branch breakers, and this may require work such as extending or shortening the existing branch circuits.

[0005] The present disclosure aims to provide a distribution board that can be easily installed as a replacement for an existing distribution board that has large branch breakers. [Means for solving the problem]

[0006] A distribution board according to one aspect of the present disclosure includes a base, a plurality of branch breakers, and a spacer. The plurality of breakers are arranged in a line on the base. The spacer is arranged on the base between two of the plurality of branch breakers. [Effects of the Invention]

[0007] According to the distribution board according to one aspect of the present disclosure, it is easy to replace an existing distribution board with a large-sized branch breaker. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram of a distribution board according to the first embodiment. [Figure 2] FIG. 2 is a partial schematic diagram of the distribution board. [Figure 3] FIG. 3 is a circuit diagram of the distribution board. [Figure 4] FIG. 4 is a schematic diagram of a branch breaker in the distribution board. [Figure 5] FIG. 5 is a schematic diagram of a spacer in the distribution board. [Figure 6] Figure 6 is a schematic diagram of the existing distribution board. [Figure 7] FIG. 7 is a partial schematic diagram of a distribution board according to the first modification. [Figure 8] FIG. 8 is a partial schematic diagram of a distribution board according to the second modification. [Figure 9] FIG. 9 is a schematic diagram of a distribution board according to the second embodiment. [Figure 10] FIG. 10 is a schematic diagram of a terminal board in the distribution board. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a distribution board according to an embodiment will be described in detail with reference to the drawings. However, each diagram described in the following embodiment is a schematic diagram, and the ratios of the sizes and thicknesses of the components do not necessarily reflect the actual dimensional ratios. Note that the configurations described in the following embodiment are merely examples of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0010] (Embodiment 1) (1) Overview The distribution board 1 (see FIG. 1) is a device fixed to a construction material 110 such as a wall of a building, and distributes power from a power system C1 (see FIG. 3) to multiple loads 6 (see FIG. 3). The loads 6 are, for example, lighting fixtures, air conditioners, or home appliances connected via electrical outlets.

[0011] In this disclosure, "building" includes non-residential facilities such as offices, stores, businesses, factories, buildings, schools, welfare facilities, or hospitals, as well as residential facilities such as detached houses, apartment buildings, or individual dwelling units in apartment buildings. Non-residential facilities also include theaters, movie theaters, public halls, amusement parks, complexes, restaurants, department stores, hotels, inns, kindergartens, libraries, museums, art galleries, underground shopping malls, stations, and airports. Furthermore, in this disclosure, "building" includes outdoor facilities such as baseball stadiums, gardens, parking lots, grounds, and parks.

[0012] The distribution board 1 is used, for example, to replace the distribution board 9 (see FIG. 6). The replacement of the distribution board 9 is performed for the purpose of replacing the distribution board 9 due to deterioration or failure of the distribution board 9 over time, changing the capacity of the main breaker, or introducing a grid-connected system, for example.

[0013] (2) Composition (2.1) Distribution board 1 and 2, the distribution board 1 includes a main breaker 3, a plurality of branch breakers 4, a plurality of spacers 5, a cabinet 11, and a plurality of (two in FIG. 1) base portions 12. The plurality of branch breakers 4 and the plurality of spacers 5 are arranged side by side in one direction (the X-axis direction in FIGS. 1 and 2) on the base portion 12.

[0014] The cabinet 11 is a housing that houses the main breaker 3, the plurality of branch breakers 4, the plurality of spacers 5, and the base 12. The cabinet 11 also has an opening on the side of the construction material 110. The cabinet 11 is, for example, a rectangular parallelepiped that is long in the X-axis direction. The cabinet 11 is installed so as to cover the through hole 22 and the plurality of through holes 24 provided in the construction material 110. A main electric circuit 21, which is a power supply path from the power system C1 (see FIG. 3 ) to the main breaker 3, is connected to the main breaker 3 through the through hole 22. Each of the plurality of branch electric circuits 23, which are power supply paths from the distribution board 1 to the plurality of loads 6, is connected to a corresponding one of the plurality of branch breakers 4 through the through hole 24 among the plurality of through holes 24 that corresponds to the branch electric circuit 23.

[0015] As shown in Fig. 2, the base portion 12 has a plurality of mounting spaces 51. The plurality of mounting spaces 51 are aligned in the X-axis direction, which is the longitudinal direction of the distribution board 1. One branch breaker 4 or one spacer 5 can be mounted in each of the plurality of mounting spaces 51. Each of the plurality of mounting spaces 51 has a width W1 in the X-axis direction.

[0016] (2.2) Main breaker As shown in FIGS. 1 and 3 , the main breaker 3 has a plurality of primary terminals 31 (three in FIG. 1 ) and the same number of secondary terminals. Each of the primary terminals 31 is connected to a phase of the main electric circuit 21. For example, when power is supplied to the main breaker 3 in a single-phase three-wire system, the L1 phase, L2 phase, and N phase are connected to each of the three primary terminals 31. The secondary terminals are connected one-to-one to a plurality of conductive bars of the distribution board 1. The conductive bars are connected to a plurality of branch breakers 4, as described below. That is, the main breaker 3 is electrically connected to each of the plurality of branch breakers 4.

[0017] The main breaker 3 has contacts for each of the multiple primary terminals 31, which are connected to the electrical circuit between the primary terminal 31 and the secondary terminal. The main breaker 3 has an operating lever on the front for turning the contacts on and off. The main breaker 3 also has a main breaker unit that cuts off the contacts when it detects an abnormal state in which an overcurrent, such as a leakage current or an overload current, flows through the contacts.

[0018] (2.3) Branch breaker As shown in FIGS. 2 and 4 , the branch breaker 4 includes a plurality of (three in FIG. 4 ) main terminals 41 and two or more (two in FIG. 4 ) branch terminals 43. Two or more (two in FIG. 4 ) of the main terminals 41 are connected in a one-to-one relationship to two or more conductive bars of the distribution board 1. Each of the two or more branch terminals 43 is connected to a respective phase of the branch circuit 23. For example, when power is supplied to the main breaker 3 using a single-phase three-wire system, one (first terminal) of the two main terminals 41 and one (third terminal) of the two branch terminals 43 are connected to the L1 phase or the L2 phase. Furthermore, the other (second terminal) of the two main terminals 41 and the other (fourth terminal) of the two branch terminals 43 are connected to the N phase. In addition, one of the two main trunk side terminals 41 (first terminal) and one of the two branch side terminals 43 (third terminal) may be connected to the L1 phase, and the other of the two main trunk side terminals 41 (second terminal) and the other of the two branch side terminals 43 (fourth terminal) may be connected to the L2 phase.

[0019] The branch breaker 4 has contacts for each of the multiple main terminals 41, which are connected to the electrical path between the main terminal 41 and the branch terminals 43. The branch breaker 4 has an operating lever 42 on the front for turning the contacts on and off. The branch breaker 4 also has a branch breaker unit that cuts off the contacts when it detects an abnormal state in which an overcurrent, such as a leakage current or an overload current, flows through the contacts.

[0020] As shown in Figures 1 and 2, each of the multiple branch breakers 4 is arranged in one of the multiple mounting spaces 51. That is, the multiple branch breakers 4 are arranged side by side in one direction on the base portion 12. More specifically, the multiple branch breakers 4 are arranged side by side in the X-axis direction, which is the longitudinal direction of the distribution board 1. Each of the multiple branch breakers 4 has a width W1 in the X-axis direction.

[0021] (2.4) Spacer 1 and 2, the spacers 5 are arranged in two or more of the mounting spaces 51 provided in the base portion 12. One or more of the spacers 5 (ten spacers in FIGS. 1 and 2) are arranged between two branch breakers 4. The spacer 5 has a width W1 in the X-axis direction.

[0022] The spacer 5 is made of an insulating material, for example, a resin material. The spacer 5 functions as a cover to prevent conductive bars and the like from being exposed in the mounting space 51 where the branch breaker 4 is not installed. For example, as shown in FIG. 5, the part of the spacer 5 that is exposed when attached to the distribution board 1 has the same shape as the part of the branch breaker 4 that is exposed when attached to the distribution board 1.

[0023] (3) Arrangement of branch breakers and spacers In the distribution board 1, the spacer 5 is disposed between the two branch breakers 4 as shown in FIG.

[0024] As described above, the distribution board 1 is used, for example, to replace the distribution board 9 (see FIG. 6). Here, as shown in FIG. 6, the distribution board 9 includes a main breaker 93, a plurality of branch breakers 94, and a cabinet 91. In the distribution board 9, the width in the X-axis direction of the plurality of branch breakers 94 is width W2. Here, width W2 is wider than width W1. Width W2 is, for example, twice width W1. Therefore, when a plurality of through holes 24 are provided in the construction material 110 to fit the distribution board 9, the plurality of through holes 24 are provided to fit the width W2 of the branch breakers 94, and therefore the center-to-center distance between two adjacent through holes 24 among the plurality of through holes 24 is wider than width W1 of the branch breakers 94.

[0025] Therefore, in a distribution board 1 used to replace a distribution board 9, the positional relationship between the multiple through holes 24 and the multiple branch breakers 4 may differ from the positional relationship between the multiple through holes 24 and the multiple branch breakers 94. More specifically, the distance between one through hole 24 and the branch breaker 4 corresponding to the branch electric circuit 23 penetrating that through hole 24 may differ from the distance between that through hole 24 and the branch breaker 94 corresponding to the branch electric circuit 23 penetrating that through hole 24. In particular, if multiple branch breakers 4 are arranged on the base portion 12 without any gaps, the spacing between two adjacent branch breakers 94 differs from the spacing between two adjacent branch breakers 4, and therefore the lengths of the wiring members in the multiple branch electric circuits 23 do not match. Therefore, when replacing a distribution board 9, the wiring members constituting the branch electric circuit 23 need to be extended, which may result in increased construction labor and material costs.

[0026] In contrast, in the distribution board 1 according to the first embodiment, one branch breaker 4 and one or more (one in FIG. 2 ) spacers 5 are arranged in a branch breaker block 52 including multiple (two in FIG. 2 ) consecutive mounting spaces 51. That is, one branch breaker 4 included in one branch breaker block 52 corresponds to one branch electric circuit 23. As a result, the difference between the center-to-center spacing of adjacent branch breaker blocks 52 and the center-to-center spacing of adjacent through holes 24 is smaller than the difference between the center-to-center spacing of adjacent mounting spaces 51 and the center-to-center spacing of adjacent through holes 24. Therefore, the variation in the distance between one through hole 24 and the branch breaker 4 corresponding to the branch electric circuit 23 passing through that through hole 24 for each through hole 24 is small. This reduces the need to adjust the length of wiring members in multiple branch electric circuits 23. Furthermore, in the distribution board 1 according to the first embodiment, the spacer 5 adjusts the center-to-center spacing of two adjacent branch breakers 4. Therefore, the distribution board 1 does not require any special configuration for the branch breaker 4 and the base portion 12, and the distribution board 1 according to the present disclosure can be realized at low cost.

[0027] Furthermore, in the distribution board 1 according to the first embodiment, the spacers 5 and the branch breakers 4 are arranged alternately. That is, each branch breaker 4 is always adjacent to at least one spacer 5, and each spacer 5 is always adjacent to at least one branch breaker 4. Therefore, the distance between the centers of two adjacent branch breakers 4 is wider than the width W1. Therefore, compared to when multiple branch breakers 4 are arranged on the base 12 without any gaps, the distance between the centers of two adjacent branch breakers 4 is closer to the distance between the centers of two adjacent branch breakers 94. Therefore, it is possible to reduce the occurrence of an insufficient length of wiring members in a specific branch electric circuit 23 among the multiple branch electric circuits 23.

[0028] Furthermore, in the distribution board 1 according to the first embodiment, the branch breakers 4 are not adjacent to one another. Therefore, the distance between the centers of two adjacent branch breakers 4 is always wider than the width W1. This eliminates the need to adjust the lengths of the wiring members in the branch electrical circuits 23, making it possible to reduce the number of steps required for installation.

[0029] (4) Effects The distribution board 1 according to the first embodiment includes a base 12, a plurality of branch breakers 4, and a spacer 5. The plurality of branch breakers 4 are arranged in one direction on the base 12. The spacer 5 is arranged on the base 12 between two of the plurality of branch breakers 4. This makes it easy to replace an existing distribution board with a large branch breaker size with the distribution board 1.

[0030] In addition, in the distribution board 1 according to the first embodiment, the one direction is the longitudinal direction of the distribution board 1. This makes it easy to replace the distribution board 1 with an existing distribution board in which branch breakers are arranged in the longitudinal direction of the distribution board.

[0031] Moreover, the distribution board 1 according to the first embodiment includes a plurality of spacers 5. Each of the plurality of branch breakers 4 is adjacent in one direction to at least one spacer 5 among the plurality of spacers 5. Each of the plurality of spacers 5 is adjacent in one direction to at least one branch breaker 4 among the plurality of branch breakers 4. As a result, in the distribution board 1, the distance between the centers of two adjacent branch breakers 4 among the plurality of branch breakers 4 is wider than the width W1 of the branch breaker 4. Therefore, in the distribution board 1, it is possible to reduce the need to adjust the length of the wiring members of the branch electric circuit 23 when replacing an existing distribution board with large branch breakers.

[0032] Furthermore, in the distribution board 1 according to the first embodiment, the branch breakers 4 are not adjacent to one another. As a result, in the distribution board 1, the distance between the centers of two adjacent branch breakers 4 among the plurality of branch breakers 4 is always wider than the width W1 of the branch breakers 4. Therefore, in the distribution board 1, it is possible to reduce the need to adjust the length of the wiring members of the branch electric circuit 23 when replacing an existing distribution board with large branch breakers.

[0033] Furthermore, in the distribution board 1 according to the first embodiment, the base portion 12 has a plurality of mounting spaces 51 arranged in one direction. Either one of the plurality of branch breakers 4 or the spacer 5 can be placed in each of the plurality of mounting spaces 51. This makes it possible to arrange the plurality of branch breakers 4 and the spacer 5 in appropriate positions in the distribution board 1 according to the arrangement of the plurality of branch electric circuits 23.

[0034] Moreover, the distribution board 1 according to the first embodiment includes a plurality of spacers 5. In the distribution board 1, a plurality of branch breaker blocks 52, each including one of the plurality of branch breakers 4 and a predetermined number of spacers 5, are arranged in one direction. This allows for a one-to-one correspondence between the branch electric circuits 23 and the branch breaker blocks 52 in the distribution board 1, making it easy to arrange the plurality of branch breakers 4 and spacers 5 in appropriate positions.

[0035] (Variation 1) As shown in FIG. 7, the distribution board 1 according to the first modification differs from the distribution board 1 according to the first embodiment in the arrangement of the plurality of branch breakers 4 and the plurality of spacers 5.

[0036] In the distribution board 1 of variant example 1, one branch breaker 4 and one or more (one in Figure 7) spacers 5 are arranged in a branch breaker block 52 which includes multiple (two in Figure 7) consecutive mounting spaces 51.

[0037] On the other hand, in the distribution board 1 according to the first modification, as shown in Fig. 7, the positional relationship between the branch breakers 4 and the spacers 5 varies for each branch breaker block 52. More specifically, as shown in Fig. 7, there are branch breaker blocks 52 in which the branch breakers 4 are arranged between the main breaker 3 and the spacer 5, and branch breaker blocks 52 in which the spacer 5 is arranged between the main breaker 3 and the branch breaker 4. In this case as well, one branch breaker 4 included in one branch breaker block 52 corresponds to one branch electric circuit 23. Therefore, even in the distribution board 1 according to the first modification, it is possible to reduce the need to adjust the lengths of the wiring members in the multiple branch electric circuits 23 when replacing the distribution board 9.

[0038] (Variation 2) As shown in FIG. 8, the distribution board 1 according to the second modification differs from the distribution boards 1 according to the first embodiment and the first modification in the arrangement of the branch breakers 4 and the spacers 5.

[0039] In the distribution board 1 according to the second modification, the branch breaker block 52a includes three or more (six in FIG. 8) mounting spaces 51. Each of the branch breaker blocks 52a has two or more (three in FIG. 8) branch breakers 4 and two or more (three in FIG. 8) spacers 5 arranged therein.

[0040] In the distribution board 1 according to the second modification, the branch breaker block 52a corresponds to the same number of through holes 24 as the number of branch breakers 4. That is, for example, a branch breaker block 52a including three branch breakers 4 corresponds to three through holes 24. Here, the number of branch breakers 4 included in the branch breaker block 52a is smaller than the number of branch breakers 4 included in the distribution board 1. Even in this case, two or more branch breakers 4 included in one branch breaker block 52 correspond to the same number of branch electric circuits 23 as the branch breakers 4. Therefore, in the distribution board 1 according to the second modification, it is possible to reduce the need to adjust the lengths of wiring members in multiple branch electric circuits 23 when replacing the distribution board 9.

[0041] (Embodiment 2) (1) Composition The distribution board 1a according to the second embodiment includes a terminal board 32 in addition to the configuration of the distribution board 1 according to the first embodiment, as shown in Fig. 9. The terminal board 32 is disposed between the main breaker 3 and the through hole 22.

[0042] As shown in Fig. 10, the terminal board 32 includes a plurality of (three in Figs. 9 and 10) main terminals 33 and a plurality of (three in Figs. 9 and 10) distribution board terminals 34. In the terminal board 32, the plurality of main terminals 33 and the plurality of distribution board terminals 34 are connected one-to-one.

[0043] The multiple distribution board terminals 34 are connected one-to-one to the multiple primary side terminals 31 of the main breaker 3. The multiple distribution board terminals 34 of the terminal board 32 and the multiple primary side terminals 31 of the main breaker 3 are connected by, for example, metal fittings, electric wires, etc. In other words, the terminal board 32 is connected to the multiple primary side terminals 31 of the main breaker 3.

[0044] Each of the multiple main terminals 33 is connected to a respective phase of the main electric circuit 21. For example, when power is supplied to the main breaker 3 by a single-phase three-wire system, each of the three main terminals 33 is connected to the L1 phase, the L2 phase, and the N phase.

[0045] As described above, the multiple main terminals 33 are connected one-to-one to the multiple primary terminals 31 of the main breaker 3. Therefore, by connecting the main electric circuit 21 to the multiple main terminals 33 of the terminal board 32, the main electric circuit 21 and the main breaker 3 are electrically connected. In other words, the terminal board 32 functions as an extension member for connecting the multiple primary terminals 31 of the main breaker 3 to the wiring members included in the main electric circuit 21.

[0046] As described above, in the distribution board 1a, the terminal board 32 is disposed between the main breaker 3 and the through hole 22. Therefore, in the distribution board 1a, the use of the terminal board 32 makes it easy to connect the main electric circuit 21 to the main breaker 3. For example, when replacing the distribution board 9 (see FIG. 6 ) with the distribution board 1a, if the distance between the through hole 22 and the primary terminal 31 of the main breaker 3 is longer than the distance between the through hole 22 and the primary terminal of the main breaker 93, the need to extend the main electric circuit 21 can be reduced. In other words, the construction of connecting the main electric circuit 21 to the main breaker 3 is easy even if the distance between the through hole 22 and the primary terminal 31 of the main breaker 3 is not shorter than the distance between the through hole 22 and the primary terminal of the main breaker 93.

[0047] (2) Effects The distribution board 1a according to the second embodiment includes a main breaker 3 and a terminal board 32. The main breaker 3 is electrically connected to each of the plurality of branch breakers 4. The terminal board 32 is connected to a primary terminal 31 of the main breaker 3. As a result, the distribution board 1a according to the second embodiment can reduce the need for length adjustment of the wiring members of the main electric circuit 21.

[0048] (Other Modifications of the Embodiment) (1) The distribution boards 1 and 1a according to the first embodiment, the first modification, the second modification, and the second embodiment may include a plurality of base portions 12.

[0049] Furthermore, when the distribution boards 1 and 1a include a plurality of base portions 12, the arrangement of the branch breakers 4 and spacers 5 on one base portion 12 may be any of the arrangements described in embodiment 1, modification 1, modification 2, or embodiment 2. For example, the distribution boards 1 and 1a may further include a base portion 12 on which a plurality of branch breakers 4 are arranged side by side in one direction without any gaps.

[0050] (2) In the distribution boards 1 and 1a according to embodiment 1, variant 1, variant 2, and embodiment 2, power is supplied by a single-phase three-wire system, but the method of supplying power to the distribution boards 1 and 1a may be any method, such as a single-phase two-wire system, a three-phase three-wire system, or a three-phase four-wire system.

[0051] (Aspect) A distribution board (1; 1a) according to a first aspect includes a base portion (12), a plurality of branch breakers (4), and a spacer (5). The plurality of branch breakers (4) are arranged in a line in one direction on the base portion (12). The spacer (5) is arranged on the base portion (12) between two of the plurality of branch breakers (4).

[0052] According to the distribution board (1; 1a) of the above aspect, it becomes easy to replace an existing distribution board having a large-sized branch breaker.

[0053] In the distribution board (1; 1a) according to the second aspect, in the first aspect, the one direction is the longitudinal direction of the distribution board (1; 1a).

[0054] According to the distribution board (1; 1a) of the above aspect, it becomes easy to replace an existing distribution board in which branch breakers are arranged in the longitudinal direction of the distribution board.

[0055] The distribution board (1; 1a) according to the third aspect is the same as that of the first or second aspect, but includes a plurality of spacers (5). Each of the plurality of branch breakers (4) is adjacent to at least one spacer (5) of the plurality of spacers (5) in one direction. Each of the plurality of spacers (5) is adjacent to at least one branch breaker (4) of the plurality of branch breakers (4) in one direction.

[0056] According to the distribution board (1; 1a) of the above aspect, the distance between the centers of two adjacent branch breakers (4) in one direction among the plurality of branch breakers (4) is wider than the width in one direction of the branch breakers (4). Therefore, the distribution board (1; 1a) can reduce the need to adjust the length of the wiring members of the branch electrical circuits when replacing an existing distribution board with large branch breakers.

[0057] In a distribution board (1; 1a) according to a fourth aspect, the branch breakers (4) in the third aspect are not adjacent to each other.

[0058] According to the distribution board (1; 1a) of the above aspect, the distance between the centers of two adjacent branch breakers (4) in one direction among the plurality of branch breakers (4) is always wider than the width in one direction of the branch breakers (4). Therefore, the distribution board (1; 1a) can reduce the need to adjust the length of the wiring members of the branch electric circuits when replacing an existing distribution board with large branch breakers.

[0059] In the distribution board (1; 1a) according to the fifth aspect, in any one of the first to fourth aspects, the base portion (12) has a plurality of mounting spaces (51) arranged in one direction. Either one of the plurality of branch breakers (4) or a spacer (5) can be placed in each of the plurality of mounting spaces (51).

[0060] According to the distribution board (1; 1a) of the above aspect, it is possible to arrange the branch breakers (4) and spacers (5) in appropriate positions according to the arrangement of the branch circuits connected to the branch breakers (4).

[0061] A distribution board (1; 1a) according to a sixth aspect is any one of the first to fifth aspects and includes a plurality of spacers (5). In the distribution board (1; 1a), a plurality of branch breaker blocks (52; 52a) are arranged in one direction. Each branch breaker block (52; 52a) includes one branch breaker (4) of the plurality of branch breakers (4) and a predetermined number of spacers (5).

[0062] According to the distribution board (1; 1a) of the above aspect, one or more branch circuits correspond one-to-one to the branch breaker blocks (52; 52a), making it easy to arrange multiple branch breakers (4) and spacers (5) in appropriate positions.

[0063] The distribution board (1a) according to a seventh aspect is the same as that according to any one of the first to sixth aspects, and further includes a main breaker (3) and a terminal board (32). The main breaker (3) is electrically connected to each of the plurality of branch breakers (4). The terminal board (32) is connected to an input terminal (31) of the main breaker (3).

[0064] According to the distribution board (1a) of the above aspect, it is possible to reduce the need for length adjustment of the wiring members of the main electric circuit connected to the main breaker (3). [Explanation of symbols]

[0065] 1, 1a distribution board 3 Main breaker 31 Primary side terminal (input side terminal) 32 Terminal board 4-branch breaker 5 spacers 12 Base 51 Mounting space 52, 52a Branch breaker block

Claims

1. A base portion and a plurality of branch breakers arranged in one direction on the base portion; a spacer disposed on the base portion and sandwiched between two of the plurality of branch breakers; A distribution board equipped with:

2. The one direction is the longitudinal direction of the distribution board, The distribution board according to claim 1.

3. A plurality of the spacers are provided, each of the plurality of branch breakers is adjacent to at least one spacer among the plurality of spacers in the one direction; each of the plurality of spacers is adjacent to at least one branch breaker among the plurality of branch breakers in the one direction; The distribution board according to claim 1.

4. The branch breakers are not adjacent to each other. The distribution board according to claim 3.

5. the base portion has a plurality of mounting spaces aligned in the one direction, In each of the plurality of mounting spaces, either one of the plurality of branch breakers or the spacer can be disposed. The distribution board according to claim 1.

6. A plurality of the spacers are provided, a plurality of branch breaker blocks, each including one of the plurality of branch breakers and a predetermined number of spacers, are arranged in the one direction; The distribution board according to claim 1.

7. a main breaker electrically connected to each of the plurality of branch breakers; a terminal board connected to the input terminal of the main breaker; Further comprising: The distribution board according to claim 1.

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