IP40 Metal Garage Consumer Unit – 63A RCD + 6A / 20A MCBs (WMGU04/620)
£32.15
£64.33
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
Secure Payments With
The WMGU04/632 is a metal-clad IP40 garage consumer unit pre-assembled with a 63 A / 30 mA Type A RCD incomer and twin B Curve MCBs rated at 6 A and 32 A. Built for workshops, garages, and small commercial spaces, it delivers safe and reliable protection for lighting and...
The WMGU04/632 is a metal-clad IP40 garage consumer unit pre-assembled with a 63 A / 30 mA Type A RCD incomer and twin B Curve MCBs rated at 6 A and 32 A. Built for workshops, garages, and small commercial spaces, it delivers safe and reliable protection for lighting and high-load circuits within a durable steel enclosure.
Installer Tip: The 6 A / 32 A configuration provides flexibility for typical garage setups — a lighting circuit plus a single high-current output such as a heater, compressor, or EV charger. The steel housing meets BS 7671 Regulation 421.1.201 for non-combustible consumer units.
- 63 A Type A RCD incomer – AC & pulsating DC protection
- 6 A + 32 A B Curve MCBs for lighting + heavy-duty load
- IP40 rated metal enclosure with earthed drop-down lid
- Pre-installed earth & neutral bars for rapid wiring
- Compact size: 130 mm (W) × 258 mm (H) × 110 mm (D)
- BS EN 61439-3 and BS 7671 Amendment 2 compliant
| Model | Incomer | MCB Configuration | Ingress Rating | Common Use |
|---|---|---|---|---|
| WMGU04/616 | 63 A Type A RCD | 6 A + 16 A | IP40 | Lighting + light sockets |
| WMGU04/620 | 63 A Type A RCD | 6 A + 20 A | IP40 | Lighting + standard sockets |
| WMGU04/632 | 63 A Type A RCD | 6 A + 32 A | IP40 | Lighting + high-load tools |
This is the highest-rated model in the WMGU series — perfect for electricians needing a sturdy, pre-wired, and 18th Edition-compliant board for heavy-duty circuits inside garages or workshops.
What’s the 32 A circuit suitable for?
It supports high-load single-phase equipment such as heaters, compressors, or small EV chargers. Always confirm cable size and protective coordination during design.
Can this unit be installed outdoors?
No – this IP40 enclosure must be mounted in a dry indoor location. For outdoor circuits, use an IP65 plastic garage consumer unit.
Does it include RCD protection?
Yes – the integrated 63 A Type A RCD protects both outgoing circuits against earth leakage faults.
Is this compliant with BS 7671?
Yes – it meets 18th Edition requirements including the use of non-combustible enclosures and Type A RCDs.
How long is the dispatch time?
Each unit is built to order and typically ships within three working days.
- Model: WMGU04/632
- Incomer: 63 A / 30 mA Type A RCD
- MCBs: 6 A + 32 A, B Curve
- Enclosure: IP40 metal housing with earthed lid
- Earth & Neutral Bars: Included (pre-wired)
- Dimensions (W × H × D): 130 × 258 × 110 mm
- Voltage Rating: 230 V AC / 50 Hz
- Usable Ways: 2
- Compliance: BS EN 61439-3 / BS EN 61008-1 / BS 7671:2018+A2:2022
Supplied fully assembled and factory-tested. Designed for dry indoor locations only (IP40). All connections must be carried out by a qualified electrician. Verify all protective coordination and RCD function before energising.
- Mount vertically on a stable, non-combustible surface
- Bond the steel enclosure to the main earthing terminal
- Confirm cable sizes are suitable for 32 A circuit load
- Perform RCD trip tests at rated current and 5×IΔn
- Label all circuits clearly for inspection
