Thrion Slimline Switches, Sockets and Back Boxes — Wiring Accessories for UK Electricians

Thrion is an established value-focused brand in the UK wiring accessories market, offering a complete range of slimline switches, double sockets, metal back boxes and PVC enclosures aimed at residential and light commercial installations. For electricians fitting out new builds, rental properties and domestic rewires, Thrion's slimline white range delivers reliable BS-compliant performance at a price point that keeps jobs competitive.

This guide covers the Thrion slimline range stocked at APM Electricals, including 1-gang and 2-gang switches, 13A DP switched sockets, and the matching galvanised back box range used across the trade.

Thrion Slimline White Switches — 1G and 2G 2-Way 10AX

The Thrion 10AX slimline switch range is designed for standard residential and light commercial use in compliance with BS EN 60669. The 10AX rating handles typical resistive and inductive loads including LED lighting circuits (noting that lamp manufacturers' derating guidance should be consulted for LED dimmer circuits).

The 1-gang 2-way version suits single staircase or room switching positions, while the 2-gang 2-way plate handles dual circuits on a single back box — useful for kitchen or utility room installations where two lighting circuits share an outlet position. Both use a low-profile slimline faceplate that sits flush with minimal projection.

Slimline white remains the standard specification for new-build and rental refurbishment work across the UK. Thrion's plates use ABS mouldings with standard fixing centres, making them directly interchangeable with back boxes from any manufacturer following the UK 25mm/35mm/47mm standard.

Thrion 13A DP Switched Sockets — 1G and 2G Slimline

Thrion's 13A slimline socket range covers the most common domestic positions: single gang for individual outlets and double gang for desk, kitchen countertop and lounge ring main positions. Both are double-pole (DP) switched, breaking both live and neutral simultaneously — the required standard for most UK domestic socket installations.

The 1G 13A DP slimline socket is a common first-fix specification for utility rooms, hallways and single kitchen appliance positions. The 2G 13A DP version is the workhorse of UK domestic wiring, typically running in multiples along ring mains in living rooms and bedrooms.

Sockets comply with BS 1363-2, the standard governing 13A switched socket outlets in the UK. Twin earth terminals are included for connection of circuit protective conductors. The slimline profile keeps the faceplate compact for installations in older properties with shallower walls or where back box depth is limited.

Thrion Galvanised Metal Back Boxes — 1G and 2G, Multiple Depths

Thrion's galvanised steel back box range covers the standard UK depth sizes used across residential and commercial installations. Metal back boxes are required under BS 7671 (IET Wiring Regulations 18th Edition) where the installation surface creates fire resistance requirements — notably flush-mounted positions in plasterboard partition walls.

The 25mm depth suits standard single and double gang socket and switch outlets where wall depth is not constrained. The 35mm depth is the most common general-purpose size, offering sufficient room for standard domestic wiring and cable management. The 47mm box is used for deeper installations, USB socket variants, or where multiple cables require extra looming space.

Thrion metal back boxes use standard UK knock-out patterns with pryout entries on the sides and rear, accepting standard conduit or surface wiring entries. Ears are pre-fitted for direct plastering in. Zinc-plated steel construction provides corrosion resistance in typical interior environments.

When to Choose Thrion

Thrion suits projects where specification flexibility is available and the priority is reliable compliance at a budget-conscious price. Typical applications include:

• Domestic rental property rewires and refurbishments where landlord specification requires functional rather than premium-finish accessories
• New-build housing where white slimline is the standard throughout and volume purchasing drives cost efficiency
• Builder's work positions (meter tails, consumer unit surrounds, service rooms) where finish is secondary to function
• Temporary works or early first-fix positions that may be upgraded before handover

For premium finishing or screwless flat-plate specifications, APM Electricals also stocks Knightsbridge and Click Mode ranges in brushed chrome, polished chrome and matt black. Thrion is not recommended where a screwless or premium-finish faceplate is specified.

Thrion Wiring Accessories at APM Electricals

APM Electricals stocks the Thrion slimline white range for trade collection or delivery. Key lines include 1-gang and 2-gang switches, single and double sockets, USB socket versions, metal back boxes in 25mm, 35mm and 47mm depths, pattress boxes, and PVC surface boxes for surface-mounted installations.

Thrion 1G 2-Way Slimline White 10AX Switch

£1.60 inc VAT

Single gang 2-way 10AX switch in slimline white. Suits standard residential lighting circuits. BS EN 60669 compliant. Standard UK fixing centres for use with 25mm, 35mm or 47mm back boxes.

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Thrion 2G 2-Way 10AX Switch

£2.60 inc VAT

2-gang 2-way 10AX switch for controlling two lighting circuits from one plate. Slimline white profile. Suits kitchens, utility rooms and hallways where dual circuit control is needed on a single back box position.

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Thrion 1G 13A Slimline White DP Switched Socket

£2.20 inc VAT

Single gang 13A double-pole switched socket outlet in slimline white. BS 1363-2 compliant. Twin earth terminals. Suits utility room, hallway and single kitchen appliance positions on ring or radial circuits.

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Thrion 2G 35mm Galvanised Metal Back Box

£0.97 inc VAT

2-gang 35mm galvanised steel flush back box. Standard knock-out pattern with side and rear entries. Suitable for flush mounting in plasterboard and masonry. Zinc-plated steel construction. Fits all standard UK 2-gang faceplates including Thrion, Click Mode and Knightsbridge.

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Installation Notes

Thrion wiring accessories are designed for installation by qualified electricians in accordance with BS 7671 (18th Edition IET Wiring Regulations) and relevant Part P building regulations requirements. Flush-mounted sockets and switches in plasterboard partitions should use metal back boxes to maintain the required fire resistance of the partition as per BS 8000-11 and fire stopping guidance.

Cable entries should be sleeved or bushed where they enter metal back boxes to protect insulation. All earth conductors should be sleeved green/yellow and terminated in the earthing terminal of both the back box and the faceplate.

For installations in bathrooms, ensure the relevant zone restrictions under BS 7671 are observed — zone 0, 1 and 2 have specific requirements restricting socket outlet positions. Thrion's standard socket range is not rated for wet zone installation; use appropriate IP-rated alternatives where required.

Summary

The Thrion slimline range provides a complete budget-to-mid market solution for UK domestic and light commercial wiring accessory requirements. Switches, sockets and metal back boxes are available in trade quantities at APM Electricals, with next-day delivery available on stocked lines. The range is particularly suited to volume rewires, new-build housing and rental property work where white slimline specification applies throughout. Visit us at APM Electricals, 24 Western Avenue, Acton, London W3 7TZ or call 020 8702 8080 for trade enquiries.