By WCED

Metal Consumer Units & IP40 Enclosures – Empty, Main Switch, SPD & Twin RCD

£17.99 - £90.99
£19.49
£19.49
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Supplied and supported by Eco Harmony — your trusted UK specialist for EV charging and electrical protection.

1-Year Warranty

Fast UK Shipping

Single & Three Phase

IP40 & IP65 Rated

Hugely Customisable

Standard Shipping 3-5 Buisness days£10
Express Shipping 1-2 Buisness days£20
SKU: WME04/MS100
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Steel-bodied, IP40-rated consumer units and distribution enclosures built to BS EN 61439-3 and fully compliant with 18th Edition Amendment 2 Wiring Regulations. Available in five configurations across nine enclosure sizes — from a compact 4-way empty case to a fully equipped 36-module SPD board. All prices ex-VAT.

Designed for domestic rewires, new builds, EV charger sub-boards and workshop distribution. These enclosures cover every configuration required under current UK wiring regulations — from a plain steel case to a pre-wired surge-protected board ready to populate.
Do I need an SPD-fitted board? Yes, for virtually all new domestic installations and rewires since BS 7671:2018 Amendment 2. The WME/SP range includes a factory-wired Type 2 40kA surge protection device and satisfies this requirement out of the box. For empty or main-switch-only enclosures, a standalone SPD must be added separately.

What's included

  • Empty enclosures (WME series) — steel case with DIN rail, neutral/earth bar and blanks. For configuring from scratch or replacing a damaged case.
  • Main switch boards (WME/MS100) — pre-fitted 100A double-pole main switch. Between 2 and 20 usable ways depending on size. The standard starting point for domestic rewires and new builds.
  • Surge protected boards (WME/SP) — 100A main switch plus factory-wired Type 2 40kA SPD. Available 6 to 36 way. Removes the need to source and wire an SPD separately.
  • Twin RCD boards (WME TR series) — 100A main switch with two Type A RCDs (63A, 80A or 100A). SPD versions available. 14 to 22 way.
  • Twin tariff boards (WME/MS2) — two independent main switches for dual-rate or Economy 7 metering. 12 or 14 usable ways.

Technical specifications

Specification Detail
Enclosure rating IP40 — indoor and garage use
Construction 1 mm electro-galvanised steel, powder-coated finish
Main switch rating 100 A double-pole (where fitted)
SPD type Type 2, 40 kA (where fitted)
RCD type Type A, 63 A / 80 A / 100 A (where fitted)
DIN rail Raised 35 mm — increased cable access
Cable knockouts 20 mm and 32 mm — sides, top, bottom and rear
Busbar Fixed, finger-safe shrouded
Regulation compliance BS EN 61439-3, BS 7671:2018 Amendment 2
Compatible devices Standard 18 mm single-module MCBs and RCBOs
Flush mount frames Available separately — WMEF14, WMEF18, WMEF22
Module size Usable ways (MS + SPD config)
6 module 3
8 module 5
10 module 7
12 module 9
14 module 11
16 module 13
18 module 15
22 module 19
28 module 24
36 module 32

The main switch occupies 2 module spaces. The SPD occupies a further 2 module spaces on SPD-fitted variants. Remaining spaces are usable ways for MCBs and RCBOs.

Who this is for

  • Electricians carrying out domestic rewires or new build consumer unit installations
  • Installers adding a dedicated EV charger circuit requiring a sub-board or new consumer unit
  • Contractors supplying solar PV or battery storage installations needing a compliant distribution point
  • Self-builders and tradespeople needing a flexible, regulation-compliant enclosure at trade price

Frequently asked questions

Are these 18th Edition compliant?
Yes. The SPD-fitted variants (WME/SP and TR/SP models) meet the surge protection requirement introduced by BS 7671:2018 Amendment 2, which applies to all new domestic and rewired installations. The empty and main-switch-only enclosures require a separate SPD — our WSPD240 Type 2 unit is a direct fit.
How many usable ways do I actually get?
Fewer than the module count suggests. The 100A main switch takes 2 module spaces, and the SPD takes a further 2 on SPD-fitted boards. A 12-module SPD board therefore gives 8 usable ways; an 18-module SPD board gives 14. See the sizing table above for every size. As a rule, go one size larger than your current circuit count — the cost difference is small and avoids a rework when the homeowner later adds an EV charger or solar.
What MCBs and RCBOs are compatible?
Any standard 18 mm (1-module) DIN rail device. Our 6kA MCB range (WMC), A-type single-module RCBOs (WRB), 10kA RCBOs (WRT) and AFDD range all fit directly. The busbar pitch is standard, so devices from most other major brands are also compatible.
Do you sell flush mount frames?
Yes — the WMEF14 fits 12–14 module boards, WMEF18 fits 16–18 module, and WMEF22 fits 22 module. Listed separately in our accessories range.
Can I order in bulk for a commercial project?
Yes. Contact us for trade account pricing on quantities. We hold substantial stock and can supply at short lead times for larger projects. Trade enquiries →

Related products and resources

A-type single-module RCBOs 6kA and 10kA MCBs Type 2 Surge Protection Flush Mount Frames Product Finder Datasheets Consumer Unit Sizing Guide
18th Edition BS 7671 Amendment 2 IP40 Metal SPD Fitted Main Switch Twin RCD 4–36 Way UK Stock
WCED metal IP40 empty enclosure with raised DIN rail and neutral earth bars for indoor switchgear and EV distribution boards
£19.49
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