IP40 Metal Garage Consumer Unit – 63A RCD + 6A / 16A MCBs (WMGU04/616)
£32.15
£64.33
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
Secure Payments With
The WMGU04/616 is a compact IP40 metal garage consumer unit fitted with a 63 A Type A RCD incomer and twin B Curve MCBs rated at 6 A and 16 A. It provides safe and compliant circuit protection for garages, workshops, and outbuildings where a durable all-metal enclosure is preferred....
The WMGU04/616 is a compact IP40 metal garage consumer unit fitted with a 63 A Type A RCD incomer and twin B Curve MCBs rated at 6 A and 16 A. It provides safe and compliant circuit protection for garages, workshops, and outbuildings where a durable all-metal enclosure is preferred.
Installer Tip: The 6 A / 16 A configuration suits most small garage or shed installs – one circuit for lighting, one for sockets or light tools. The steel case and earthed lid help maintain compliance with 18th Edition metal-clad enclosure requirements.
- 63 A Type A RCD incomer (30 mA – AC & pulsating DC protection)
- 6 A + 16 A B Curve MCBs for lighting and light power circuits
- IP40 rated all-metal enclosure with earthed drop-down lid
- Integrated earth & neutral bars pre-wired for fast installation
- Compact footprint: 130 mm (W) × 258 mm (H) × 110 mm (D)
- Fully compliant with BS EN 61439-3 and BS 7671 Amendment 2
| Model | Incomer | MCB Configuration | Ingress Rating | Common Use |
|---|---|---|---|---|
| WMGU04/616 | 63 A Type A RCD | 6 A + 16 A | IP40 | Lighting + sockets |
| WMGU04/620 | 63 A Type A RCD | 6 A + 20 A | IP40 | Lighting + heavier sockets |
| WMGU04/632 | 63 A Type A RCD | 6 A + 32 A | IP40 | Lighting + high-load tools |
Built to order and supplied fully assembled, this metal garage unit combines safety, convenience, and long-term durability — ideal for both domestic and light commercial applications.
Can this be installed outdoors?
No – this metal unit is rated IP40 and suitable for dry indoor environments only. For external installs, use our IP65 plastic garage enclosures.
Is it 18th Edition compliant?
Yes – the steel enclosure, Type A RCD, and B-curve breakers meet BS 7671:2018 Amendment 2 and BS EN 61439-3 requirements for outbuilding supplies.
What’s the purpose of the 6 A / 16 A setup?
6 A protects lighting circuits, while 16 A suits general sockets or small tools. Choose a higher rating if heavier loads are expected — such as welders or heaters.
Does this include earth and neutral bars?
Yes – both are fitted internally and pre-connected to the RCD for quick installation.
What’s included on delivery?
Each unit comes pre-wired with RCD, MCBs, lid, and bars fitted – ready for direct installation. Built and dispatched within three working days.
- Model: WMGU04/616
- Incomer: 63 A / 30 mA Type A RCD
- MCBs: 6 A + 16 A, B Curve
- Enclosure Rating: IP40 (indoor metal construction)
- Dimensions (W × H × D): 130 × 258 × 110 mm
- Earth & Neutral Bars: Included (pre-installed)
- Enclosure: Steel body with earthed drop-down lid
- Usable Ways: 2
- Compliance: BS EN 61439-3 / BS 7671:2018+A2:2022
Delivered pre-wired with RCD, MCBs, and internal bars fitted. Designed for indoor use only (IP40). All final connections and testing must be completed by a qualified electrician under BS 7671 requirements.
- Mount securely on a flat indoor surface
- Bond the metal enclosure per BS 7671 Reg 411.3.1.2
- Check RCD operation before energising
- Confirm circuit ratings match MCB protection
- Label outgoing circuits clearly for inspection
