IP40 Metal Garage Units (RCD Incomer)
£28.32
£64.33
The IP40 Metal Garage Unit is a compact, all-metal enclosure designed for garages, sheds, and outbuildings. Each unit comes pre-assembled with a 63A / 30mA Type A RCD incomer and two B-curve MCBs, giving safe and compliant circuit protection under the 18th Edition wiring regulations. Built in the UK, this...
The IP40 Metal Garage Unit is a compact, all-metal enclosure designed for garages, sheds, and outbuildings. Each unit comes pre-assembled with a 63A / 30mA Type A RCD incomer and two B-curve MCBs, giving safe and compliant circuit protection under the 18th Edition wiring regulations.
Built in the UK, this unit includes integrated neutral and earth bars, an earthed drop-down lid, and an IP40 steel case. It’s an ideal choice for powering lighting and socket circuits in small outbuildings.
Available variants:
- WMGU04/616 – 63A RCD with 6A + 16A MCBs (B curve)
- WMGU04/620 – 63A RCD with 6A + 20A MCBs (B curve)
- WMGU04/632 – 63A RCD with 6A + 32A MCBs (B curve)
| Part Code | Incomer | MCBs | Typical Use |
|---|---|---|---|
| WMGU04/616 | 63A / 30mA Type A RCD | 6A + 16A | Lighting + light power/tool circuit |
| WMGU04/620 | 63A / 30mA Type A RCD | 6A + 20A | Lighting + heavier socket/radial circuit |
| WMGU04/632 | 63A / 30mA Type A RCD | 6A + 32A | Lighting + high-load equipment (e.g. welder, compressor) |
Which should I choose? Use the 6A way for lighting, then select 16A / 20A / 32A based on the demand of your socket or equipment circuit. Always confirm against circuit design and protective coordination.
- Supplied pre-wired and assembled for quick installation
- All-metal IP40 construction with earthed drop-down lid
- Neutral and earth bars included
- Fully compliant with BS EN 61439 and BS7671:2018 (Amendment 2)
- Built to order – dispatched within 3 working days
- Dimensions: 130(W) × 258(H) × 110(D) mm
What’s included in this garage unit?
Each unit is supplied pre-wired with a 63A / 30mA Type A RCD incomer and two B-curve MCBs. Variants are available with 6A + 16A, 6A + 20A, or 6A + 32A MCBs.
Is this unit fully compliant with the 18th Edition?
Yes – it meets BS7671:2018 (Amendment 2) and BS EN 61439 standards for garage/outbuilding consumer units.
Can I use this outdoors?
No – the enclosure is IP40 and must be installed in a dry indoor location such as a garage or workshop. For outdoor installs, use an IP65+ rated board.
How long is delivery?
These units are built to order and typically dispatched within 3 working days.
- Incomer: 63A / 30mA Type A RCD
- MCB Variants:
- WMGU04/616 – 6A + 16A (B curve)
- WMGU04/620 – 6A + 20A (B curve)
- WMGU04/632 – 6A + 32A (B curve)
- MCB Curve: B curve (2 modules fitted)
- Construction: Steel enclosure, IP40 rated
- Lid: Earthed drop-down cover
- Bars: Integrated neutral and earth bars
- Dimensions: 130(W) × 258(H) × 110(D) mm
- Standards: BS EN 61439, 18th Edition compliant
Supplied pre-configured with RCD and MCBs for quick fit-out. Final wiring and testing must be carried out by a qualified electrician.
- Allow 3 working days for build and dispatch
- Mount indoors only – IP40 rating
- Confirm correct circuit design current before selecting variant
- Check RCD test button function on commissioning
