22 Way IP40 Metal Enclosure – For MCBs & RCBOs (WME22)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
Secure Payments With


The WME22 is the largest enclosure in the WME Series — an IP40-rated metal housing designed for extensive circuit protection builds. Suitable for MCBs, RCBOs, and other DIN-rail–mounted devices, it delivers the capacity, compliance, and durability demanded in large-scale domestic, commercial, or light-industrial installations. Installer Tip: On high-capacity boards like...
The WME22 is the largest enclosure in the WME Series — an IP40-rated metal housing designed for extensive circuit protection builds. Suitable for MCBs, RCBOs, and other DIN-rail–mounted devices, it delivers the capacity, compliance, and durability demanded in large-scale domestic, commercial, or light-industrial installations.
Installer Tip: On high-capacity boards like this, allow extra cable slack near terminations to prevent tension when servicing. It keeps future maintenance compliant with BS 7671 Regulation 134.1.1.
- 22 usable ways – designed for high-density circuit distribution
- Raised DIN rail for efficient cable routing and easy access
- Supplied with neutral and earth terminal bars
- Knockout entries: 25mm & 32mm (top/bottom), 40mm (sides/back)
- Raised keyholes for fast, level wall fixing
- Steel body finished in white polyester powder coating
- Compatible with all standard 18mm protective devices
Part Code | Description | Dimensions (W × H × D mm) |
---|---|---|
WME10 | 10 Way IP40 Metal Enclosure | 232 × 240 × 112 |
WME12 | 12 Way IP40 Metal Enclosure | 304 × 240 × 112 |
WME14 | 14 Way IP40 Metal Enclosure | 304 × 240 × 112 |
WME16 | 16 Way IP40 Metal Enclosure | 376 × 240 × 112 |
WME18 | 18 Way IP40 Metal Enclosure | 376 × 240 × 112 |
WME22 | 22 Way IP40 Metal Enclosure | 448 × 240 × 112 |
Built for professional use, the WME22 combines robust construction with accessible wiring space to make high-circuit distribution simple and compliant. It’s the ideal choice where expansion, clear segregation, and long-term reliability are key under BS 7671 Amendment 2.
Is the WME22 supplied with devices or busbars?
No. It’s supplied empty so you can configure the layout to suit your circuit design.
Can this enclosure be used outdoors?
No. It’s IP40 rated and must be installed in a dry, indoor environment.
What type of installations typically use the WME22?
It’s suited to large domestic or light-commercial setups requiring extensive circuit capacity or multi-phase arrangements.
Does it include neutral and earth bars?
Yes. Both bars are supplied and pre-mounted inside the enclosure.
Does it meet the latest 18th Edition regulations?
Yes. It complies fully with BS EN 62208 and BS 7671 Amendment 2 when installed by a qualified electrician.
- Material: Steel, white polyester powder coated
- Ingress Protection: IP40 (indoor use only)
- DIN Rail: Raised 18mm rail
- Knockouts: 25mm & 32mm (top/bottom), 40mm (sides/back)
- Terminals: Supplied with neutral and earth bars
- Mounting: Raised keyholes for secure wall fixing
- Dimensions: 448 × 240 × 112 mm
- Compliance: BS EN 62208, BS 7671 (18th Edition)
Install the enclosure using all four raised keyholes for even weight distribution. Always inspect knockout edges before use and fit appropriate grommets or glands to protect insulation. Group outgoing circuits neatly, maintaining clear separation between phases where required. Perform full insulation resistance and polarity testing upon completion per BS 7671 Chapter 64.
- Use suitable fixings and ensure level alignment
- Mount indoors only — IP40 is not weatherproof
- Allow clearance for cable bending radius behind the board
- Tighten terminals to recommended torque values
- Clearly label circuits and neutral/earth bars