Backboxes & Enclosures

Showing all 14 results

Downlights Lightboxes, Chocboxes, Junction Boxes (7)

WISKA Combi Boxes & Accessories (55)

Smooth Wall Junction Boxes (8)

1G 35mm Galvanised Steel Box

90 In stock

More Available on Backorder

SKU: GSK35

£0.51 £0.61

1G 47mm Galvanised Steel Box

24 In stock

More Available on Backorder

SKU: GSK47

£0.65 £0.78

2G 35mm Galvanised Steel Box

45 In stock

More Available on Backorder

SKU: GSK235

£0.65 £0.78

2G 47mm Galvanised Steel Box

47 In stock

More Available on Backorder

SKU: GSK247

£0.84 £1.01

Knightsbridge 1G 25mm Galvanised Steel Extension Box

10 In stock

More Available on Backorder

SKU: GSE25

£0.62 £0.74

Knightsbridge 2G 25mm Galvanised Steel Extension Box

5 In stock

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SKU: GSE225

£0.90 £1.08

Knightsbridge 3G 35mm Triple Galvanised Steel Box

10 In stock

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SKU: GSK335

£2.18 £2.62

Knightsbridge 47mm Galvanised Steel Box for Combination Multimedia Plate

2 In stock

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SKU: GSK298MM

£15.39 £18.47

Knightsbridge 47mm Galvanised Steel Box for Small Combination Multimedia Plate

2 In stock

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SKU: GSK194MM

£7.89 £9.47

Knightsbridge 6-8G 35mm Galvanised Steel Box

2 In stock

More Available on Backorder

SKU: GDSG68G

£5.38 £6.46

Knightsbridge 9-12G 35mm Galvanised Steel Box

2 In stock

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SKU: GDSG912G

£6.08 £7.30

Knightsbridge 34mm Round Dry Lining Box

3 In stock

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SKU: SN8375

£0.70 £0.84

Knightsbridge 35mm Dual Dry Lining Box

3 In stock

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SKU: SN8380D

£1.35 £1.62

Knightsbridge 35mm Single + Double Dry Lining Box

5 In stock

More Available on Backorder

SKU: SN8335D

£1.75 £2.10

Showing all 14 results

Backboxes and enclosures are essential components in electrical installations that provide protection, support, and containment for electrical devices, outlets, switches, and other equipment. They play a crucial role in maintaining the safety, organization, and functionality of electrical systems. In the context of electrical installations regulated by BS 7671 (the 18th Edition of the Wiring Regulations) in the UK, here are key considerations regarding backboxes and enclosures:

1. Purpose of Backboxes and Enclosures:

Backboxes and enclosures are designed to house electrical devices and equipment, including sockets, switches, junction boxes, and control panels. They protect these components from mechanical damage, dust, moisture, and external environmental factors.

2. Material and Construction:

These components are typically constructed from materials such as plastic, metal, or PVC. The choice of material depends on the specific application and environmental conditions.
Metal enclosures are commonly used for industrial and outdoor applications, while plastic enclosures are often used for residential and indoor installations.

3. Size and Configuration:

Backboxes and enclosures come in various sizes and configurations to accommodate different types and quantities of electrical devices.
The size and configuration should be selected based on the specific requirements of the installation and the number of devices to be accommodated.

4. Mounting Options:

These components can be surface-mounted or flush-mounted, depending on the installation requirements and aesthetics.
Flush-mounted backboxes are often used for devices like switches and sockets to create a neater appearance by concealing the devices within the wall or surface.

5. Cable Entry and Knockouts:

Backboxes and enclosures typically have multiple cable entry points or knockouts to allow cables and conduit to enter the enclosure while maintaining a degree of environmental protection.
Knockouts should be sealed to maintain the enclosure’s IP (Ingress Protection) rating.

6. IP Ratings:

IP ratings indicate the level of protection against dust and moisture that an enclosure provides. Enclosures used in wet or outdoor environments should have appropriate IP ratings to ensure protection.
IP ratings are specified in accordance with BS EN 60529 and are a key consideration in enclosure selection.

7. Compliance with Standards:

Backboxes and enclosures should meet the relevant standards and regulations outlined in BS 7671 and other applicable electrical standards to ensure safety and performance.

8. Installation and Wiring:

Proper installation of backboxes and enclosures is essential to ensure that devices are securely mounted and that wiring connections are made safely and in accordance with regulations.
Installation should adhere to guidelines for cable bending radii, support of cables, and clearances around devices.

9. Accessibility:

Enclosures should be accessible for maintenance, inspection, and future modifications. Removable covers or doors should be provided for this purpose.

10. Labeling and Identification: – Enclosures and backboxes may require labeling or marking to identify circuits, devices, or equipment within the enclosure.

Backboxes and enclosures are foundational components of electrical installations, and their proper selection and installation are crucial to ensure the safety and functionality of electrical systems. Electricians and technicians should follow the guidelines and regulations set forth in BS 7671 and other relevant standards when working with these components.

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