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SPD Boards with Main Switch

SPD consumer unit boards combine a main switch with surge protection to help protect electrical installations and connected equipment against transient overvoltages. Choose from empty and populated boards for domestic and commercial applications.

Our range includes consumer units from trusted circuit protection brands, with options for different numbers of ways, protective device configurations and installation requirements. Many boards incorporate Type 2 surge protection for a practical all-in-one distribution solution.

Showing 1–20 of 145 results

FuseBox 21 Way SPD Consumer Unit Kit with 15 RCBOsPopulated FuseBox 21 Way Consumer Unit Kit for Fast Installation

FuseBox F3021MZ 21 Way SPD Consumer Unit Kit – with 15 RCBOs
In Stock
SKU: F3021MZ/15RCBO
£222.78 £218.73
FuseBox F3011MZ SPD Consumer UnitF3011MZ FuseBox consumer unit with cover removed, angled to show internal layout

FuseBox F3011MZ 11 Way RCBO Consumer Unit With SPD
9 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: F3011MZ
Quantity Discount
Quantity Price
1 - 7 £60.11
8+ £57.41
£60.11
FuseBox 11 Way SPD Consumer Unit Kit with 8 RCBOsFuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs 2

FuseBox | F3011MZ | 11 Way SPD Consumer Unit Kit | 8 RCBOs
In Stock
SKU: F3011MZ/8RCBO
£143.79 £141.18
FuseBox F3015MZ 15 Way SPD Consumer Unit Kit – with 12 RCBOsComplete Kit for Fast Installation – Populated FuseBox 15 Way Consumer Unit

FuseBox | F3015MZ | 15 Way SPD Consumer Unit Kit | 12 RCBOs
In Stock
SKU: F3015MZ/12RCBO
£187.19 £183.78
FuseBox F3015MZ SPD Consumer UnitAngled view of the FuseBox F3015MZ consumer unit with front cover removed, showing internal layout

FuseBox F3015MZ 15 Way RCBO Consumer Unit With SPD
10 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: F3015MZ
Quantity Discount
Quantity Price
1 - 7 £63.99
8+ £60.47
£63.99
FuseBox F3007MZ 7 Way RCBO Consumer Unit With SPDFuseBox F3007MZ 7 Way RCBO Consumer Unit With SPD 2

FuseBox F3007MZ 7 Way RCBO Consumer Unit With SPD
14 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: F3007MZ
Quantity Discount
Quantity Price
1 - 5 £54.34
6+ £52.44
£54.34
FuseBox 7 Way SPD Consumer Unit Kit with 5 RCBOsFuseBox F3007MZ 7 Way SPD Consumer Unit Kit – with 5 RCBOs 2

FuseBox | F3007MZ | 7 Way SPD Consumer Unit Kit | 5 RCBOs
In Stock
SKU: F3007MZ/5RCBO
£106.87 £104.92
Live Electrical 11 Way SPD Metal Consumer UnitLive Electrical LSMC14M-SP Live Electrical 11 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC14M-SP | 100A Main Switch | 11 Way SPD Metal Consumer Unit
13 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC14M-SP
Quantity Discount
Quantity Price
1 £46.98
2+ £46.04
3+ £45.34
£46.98
Live Electrical 9 Way SPD Metal Consumer UnitLive Electrical LSMC12M-SP Live Electrical 9 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC12M-SP | 100A Main Switch | 9 Way SPD Metal Consumer Unit
13 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC12M-SP
Quantity Discount
Quantity Price
1 £45.38
2+ £44.47
3+ £43.79
£45.38
WCED 5 Way SPD Metal Consumer Unit

WCED | WME08/SP | SPD Consumer Unit | 5 Way
2 In Stock
More available within:
Usually 1 - 2 Working Days
Read More
SKU: WME08/SP
£38.01
Live Electrical 7 Way SPD Metal Consumer UnitLive Electrical LSMC10M-SP Live Electrical 7 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC10M-SP | 100A Main Switch | 7 Way SPD Metal Consumer Unit
17 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC10M-SP
Quantity Discount
Quantity Price
1 £42.68
2+ £41.83
3+ £41.19
£42.68
Live Electrical 13 Way SPD Metal Consumer UnitLive Electrical LSMC16M-SP Live Electrical 13 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC16M-SP | 100A Main Switch | 13 Way SPD Metal Consumer Unit
10 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC16M-SP
Quantity Discount
Quantity Price
1 £49.72
2+ £48.73
3+ £47.98
£49.72
FuseBox F3021MZ SPD Consumer UnitAngled view of the FuseBox F2021MX consumer unit with no front cover, showing internal layout

FuseBox F3021MZ 21 Way RCBO Consumer Unit With SPD
3 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: F3021MZ
Quantity Discount
Quantity Price
1 - 3 £67.95
4+ £65.57
£67.95
Live Electrical 5 Way SPD Metal Consumer UnitLive Electrical LSMC8M-SP Live Electrical 5 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC8M-SP | 100A Main Switch | 5 Way SPD Metal Consumer Unit
5 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC8M-SP
Quantity Discount
Quantity Price
1 £41.32
2+ £40.49
3+ £39.87
£41.32
Live Electrical 15 Way SPD Metal Consumer UnitLive Electrical LSMC18M-SP Live Electrical 15 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC18M-SP | 100A Main Switch | 15 Way SPD Metal Consumer Unit
5 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC18M-SP
Quantity Discount
Quantity Price
1 £52.37
2+ £51.32
3+ £50.54
£52.37
WCED 13 Way SPD Metal Consumer Unit

WCED | WME16/SP | SPD Consumer Unit | 13 Way
1 In Stock
More available within:
Usually 1 - 2 Working Days
Read More
SKU: WME16/SP
£46.31
FuseBox SPD Consumer Unit 11 Way RCBO KitMetal FuseBox with 8 Bi-Directional RCBOs – Ideal for EV, Solar & Battery Installs

FuseBox | F3011MZ | 11 Way SPD Consumer Unit Kit | 8 Bi-Directional RCBOs
In Stock
SKU: F3011MZ/BD/KIT/8
£181.24 £176.34
Live Electrical 19 Way SPD Metal Consumer UnitLive Electrical LSMC22M-SP Live Electrical 19 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC22M-SP | 100A Main Switch | 19 Way SPD Metal Consumer Unit
3 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC22M-SP
Quantity Discount
Quantity Price
1 £56.91
2+ £55.77
3+ £54.92
£56.91
Live Electrical 3 Way SPD Metal Consumer UnitLive Electrical LSMC6M-SP Live Electrical 3 Way SPD Metal Consumer Unit 2

Live Electrical | LSMC6M-SP | 100A Main Switch | 3 Way SPD Metal Consumer Unit
10 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC6M-SP
Quantity Discount
Quantity Price
1 £40.05
2+ £39.25
3+ £38.65
£40.05
Live Electrical LSMC14S-SP SRN Consumer UnitLive Electrical | LSMC14S-SP | SRN | Double Pole Busbar Consumer Unit | Type 2 SPD | 11 Way

Live Electrical | LSMC14S-SP | SRN | Double Pole Busbar Consumer Unit | Type 2 SPD | 11 Way
1 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: LSMC14S-SP
Quantity Discount
Quantity Price
1 £58.85
2+ £56.50
3+ £55.32
£58.85

Showing 1–20 of 145 results

SPD Consumer Units for Domestic and Commercial Installations

An SPD consumer unit combines circuit distribution with surge protection in one enclosure. The surge protective device is designed to limit transient overvoltages and divert surge current, helping reduce the risk of damage to connected electrical and electronic equipment.

Main switch SPD consumer units are widely used in modern installations where individual RCBOs or other compatible protective devices provide protection for outgoing circuits.

Empty and Populated SPD Consumer Units

Choose between empty and populated consumer units depending on the installation. Empty boards provide flexibility when selecting individual protective devices, while populated boards are supplied with a predetermined combination of compatible RCBOs, MCBs or other components.

Always check exactly what is included with each board, as configurations vary between manufacturers and product ranges.

Choosing the Right SPD Consumer Unit

  • Number of ways – allow sufficient capacity for existing circuits and appropriate future expansion.
  • Empty or populated – choose an empty enclosure for a customised configuration or a populated board where a suitable device combination is already supplied.
  • Main switch rating – confirm the main switch is suitable for the installation and supply arrangement.
  • SPD type – many boards use Type 2 surge protection, while the required protection should be determined from the installation design.
  • Device compatibility – use RCBOs, MCBs, busbars and accessories approved by the consumer unit manufacturer.
  • Physical dimensions – check enclosure size, cable entry space and available installation area before replacing an existing board.

Main Switch Consumer Units with Surge Protection

A main switch SPD consumer unit provides a convenient arrangement for installations using individual protective devices on outgoing circuits. When RCBOs are used, a fault affecting one final circuit can normally be isolated without unnecessarily disconnecting unrelated circuits.

The correct surge protection arrangement depends on factors including the supply system, installation characteristics and required level of protection. Where additional or coordinated surge protection is required, SPD selection should form part of the overall electrical design.

SPD Consumer Unit Installation and Compatibility

Consumer units, surge protective devices and outgoing circuit protection should be correctly selected, installed and tested in accordance with BS 7671 and the relevant manufacturer’s instructions.

Browse our SPD consumer unit range to compare empty and populated main switch boards from established circuit protection manufacturers, with UK delivery and collection from our Fulham trade counter available.






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Next Day Delivery

Cut-Off Time and Order Information
To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £200 + VAT (double our standard carriage-paid order value of £100 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

In Stock Delivery Policy

Free Next-Day Delivery Over £100 + VAT:
Orders above £100 + VAT qualify for free next-day delivery via DPD for in-stock items. While we strive for timely dispatch, we recommend placing orders early to avoid potential delays. Once dispatched, unexpected issues may arise despite the courier’s efforts.

Orders Below £200 + VAT:
To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.

Need items faster? You can pay for an additional delivery service to receive in-stock items sooner. Simply email us with your order details, and we’ll send you a payment link for the extra delivery cost.

Orders Above £200 + VAT:
For larger orders, we can split delivery at no extra cost. In-stock items will be sent immediately, with the remaining items dispatched once available.

Supplier Lead Time & Availability

This item may be sourced from our supplier before dispatch.
The lead time shown is an estimate only and is based on the usual supplier timeframe. It is subject to supplier availability and is not a guaranteed delivery date.
We do not have a live supplier stock feed, so supplier stock can change without notice.
Delivery timers and courier estimates apply once the item is available for dispatch.
If the item is unavailable, we will contact you with the available options, including waiting for stock, choosing an alternative product, cancellation, or a refund for the unavailable item.
This does not affect your statutory rights.

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Delivery info

If this item is not currently on our shelves, we will order it from FuseBox for delivery to our warehouse. FuseBox does not dispatch directly to our customers, so once the item arrives with us, we will send it on to you as quickly as possible. Many items reach us the next working day, while some may take a little longer. Delivery to you is usually completed within 2–4 working days.

Please note that if your order includes other products with a longer lead time, the complete order may be dispatched once all items are available.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

Orders containing only Live Electrical products that are not available from our shelf stock will usually be dispatched directly from Live Electrical. Delivery is generally completed within 2–3 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, dispatch arrangements may vary, and the order may follow the longest delivery estimate shown.

In the unlikely event that an item becomes unavailable, we will contact you with the available options, which may include waiting for stock, choosing an alternative product or cancelling the unavailable item for a refund.

Delivery info

Where an order contains only WCED products that are not available from our shelf stock, it will usually be dispatched directly from WCED. Delivery often takes 1–2 working days, although stock availability, order cut-off times and courier schedules may affect the timing.

For mixed orders containing products from other suppliers, the dispatch arrangement and delivery time may vary, and the order may follow the longest lead time shown.

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