12 Module Switch Board Size in Inches, MM and Price Factors
A 12 module switch board is used when several electrical controls need to be arranged in one panel. It may contain a combination of modular switches, sockets, fan controls or compatible smart touch controls, depending on the space occupied by each device.
The term “12 module” describes the available panel space; it does not guarantee that twelve separate switches will fit. This guide explains how module space works, how plate and mounting dimensions differ, what affects price, and which wiring checks matter before installation.
Exact size: Treco’s visible 12 module plate measures 240 × 182 mm, approximately 9.45 × 7.17 inches. The mounting box, wall cut-out and usable internal depth are separate measurements and must be confirmed before installation.
What Does 12 Module Mean?
Modular switch systems use standardised spaces called modules. A narrow switch may occupy one module, while a socket, fan control or larger electronic control can occupy more than one. The final number of controls therefore depends on the exact components selected for the board.
For example, a board containing only narrow switches will use space differently from one containing switches, sockets and fan controls. Planning the combination first helps avoid discovering later that the selected devices do not fit within the available twelve-module space.
12 Module Switch Board Size
A 12 modular switch board does not have one universal outer dimension across all manufacturers. The visible plate, mounting frame and box must belong to a compatible system because screw positions, proportions and fitting methods can vary.
Treco’s modular-switch page lists a 12 module plate measuring 240 × 182 mm, available in glass or acrylic and in black or white. The same page also lists modular switches and sockets that can be considered when planning the panel layout. See the published details for Treco modular switches and plates.
| Measurement | Millimetres | Approx. Inches | Meaning |
|---|---|---|---|
| Treco 12 module visible plate | 240 × 182 mm | 9.45 × 7.17 in | Front plate size, not the wall opening or box size |
| Measurement | What It Describes | Why It Must Be Checked |
|---|---|---|
| Plate size | The visible width and height of the finished front plate | Determines how much wall area the panel covers |
| Mounting-box size | The enclosure fitted behind the plate | Must match the plate and mounting frame |
| Wall cut-out | The opening needed for concealed installation | Should be confirmed before wall finishing |
| Internal depth | The usable space for devices, terminals and wires | Affects wiring bends, connections and maintenance access |
These measurements should not be treated as interchangeable. A plate can have the correct outer size but still be incompatible with an unrelated box or frame.
How Many Controls Can Fit?
The answer depends on the width of each selected device. One module is a unit of space, not a fixed number of functions. A panel with sockets or fan controls may hold fewer individual controls than a panel made mostly from narrow switches.
| Component | Effect on Available Space | Planning Check |
|---|---|---|
| Modular switch | Often uses a relatively narrow module space | Confirm the width in the selected product range |
| Socket | Usually occupies more space than a basic switch | Check socket width, rating and plug clearance |
| Fan control | Can reduce the number of remaining switch positions | Confirm the panel configuration and electrical rating |
| Smart touch control | Uses a fixed panel configuration rather than separate mechanical modules | Check panel size, wiring and load compatibility |
A simple room may not need all twelve module spaces, while a living room or office with several lighting circuits, sockets and fan control may use them quickly. The layout should be based on actual functions rather than on filling every available position.
Plate Size and Box Depth Are Different
The visible plate determines the appearance of the switchboard, but internal depth determines whether the wiring and controls can be installed without overcrowding. A shallow enclosure can make terminal access difficult and may leave too little space for safe wire bends.
Before wall work begins, the installer should confirm the selected plate, frame and box as one compatible assembly. This is especially important when electronic or smart controls are planned because they may have different wiring and depth requirements from basic mechanical switches.
12 Module Switch Board Price Factors
The 12 module switch board price varies because the phrase may refer to different combinations. One price may cover only the visible plate, while another may include the frame, switches, sockets, fan controls, smart controls and installation.
- The material and finish of the front plate
- The mounting frame and compatible enclosure
- The number and type of modular switches
- The number and rating of sockets
- Fan-control requirements
- Standard or smart touch-control configuration
- Changes required in existing wiring
- Installation and testing work
When comparing a 12 modular board price, first check what the quoted amount includes. A plate-only price cannot be compared directly with the price of a complete wired panel.
Wiring Checks Before Installation
A qualified electrician should inspect the circuits before fitting the board. The number of loads, conductor size, earthing and available space all affect whether the installation can be completed safely.
- List every light, fan and socket connected at the location.
- Confirm that switches and controls are rated for their loads.
- Check whether neutral wiring is available where required.
- Provide correct earthing for sockets and the electrical system.
- Allow enough internal depth for terminals and wire movement.
- Keep circuit protection appropriate for the connected loads.
- Test each function before fitting the final plate.
The board should remain accessible for maintenance. Compressing too many wires into a limited space can make future inspection and replacement more difficult.
Standard Modular Board or Smart Touch Panel?
A standard modular board uses separate switches and sockets fitted into a compatible frame. It is straightforward to configure because individual components can be arranged according to the required module spaces.
A smart touch panel uses a predefined control layout. Treco’s published touch-switch range includes 12-module configurations with mobile-app support and compatible Alexa and Google Home control. The exact panel should be selected according to the required number of touch controls, fan controls and sockets. The available configurations are listed on Treco’s touch switch page.
Neither format is automatically better for every room. A standard board may be appropriate where simple manual control is sufficient, while a smart panel may suit a location where app or compatible voice control is required. Wiring and load compatibility should be checked before choosing either option.
Planning a 12 Module Board Step by Step
- List the functions: Count the lights, fans and sockets that need control from the location.
- Select the control type: Decide whether the board will use standard modular controls or a compatible smart touch panel.
- Check component widths: Confirm how much panel space each selected device occupies.
- Verify plate dimensions: Ensure the visible plate fits the intended wall area.
- Match the mounting parts: Use a compatible plate, frame and enclosure.
- Inspect the wiring: Confirm load ratings, neutral availability, earthing and circuit protection.
- Allow maintenance space: Avoid overcrowding the enclosure with devices and conductors.
- Test before completion: Check every control before final handover.
Common Planning Mistakes
- Assuming twelve modules always means twelve individual switches
- Buying the plate before selecting the switches and sockets
- Using a box or frame from an incompatible range
- Checking only the visible plate size and ignoring internal depth
- Adding controls without confirming their electrical ratings
- Planning smart controls without checking wiring requirements
- Leaving insufficient space for safe wiring and later maintenance
Most of these problems can be avoided by finalising the layout and checking all dimensions before wall finishing or replacement work begins.
Conclusion
A 12 module switch board provides twelve module spaces, but the number of usable controls depends on the components selected. Plate dimensions, mounting compatibility, internal depth, wiring and load ratings are more important than the module count alone.
Treco lists a 12 module plate at 240 × 182 mm and also lists standard modular components and 12-module smart touch configurations. These specifications provide a useful starting point, but the complete plate, frame, enclosure and control layout should be checked together before installation.
FAQs
What is a 12 module switch board?
It is a modular panel with twelve module spaces. The number of switches or controls it can hold depends on the width of the selected components.
What is the size of Treco’s 12 module plate in inches and millimetres?
Treco lists its visible 12 module plate at 240 × 182 mm, approximately 9.45 × 7.17 inches. This is not necessarily the mounting-box or wall cut-out size.
Is the plate size the same as the mounting-box size?
No. The visible plate, mounting box, wall cut-out and internal depth are separate measurements and should all be confirmed before installation.
How many switches fit in a 12 module board?
There is no fixed number. Basic switches, sockets and fan controls use different amounts of module space, so the final count depends on the selected layout.
What affects 12 module switch board price?
The price depends on whether it includes only the plate or also the frame, switches, sockets, fan controls, smart controls, wiring changes and installation.
Can a 12 module board use smart touch switches?
Yes. Treco lists 12-module smart touch configurations. The selected panel must still match the wiring, available depth, neutral requirement and connected loads.