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The WMMS/616 is a compact IP40 metal garage consumer unit supplied with a 100A main switch incomer and pre-fitted 6A and 16A B-curve MCBs. It’s designed for garages, workshops and outbuildings where you want a dedicated lighting circuit alongside a light power or tool circuit, fully in line with BS 7671:2018 Amendment 2.
Use the 6A way for lighting and the 16A way for a small power radial or socket circuit, fed from a suitable sub-main. The steel enclosure, integrated neutral/earth bars and earthed drop-down lid make it a practical, installer-friendly choice for domestic and light commercial sites.
Installer Tip: Treat this unit as a small distribution board on a sub-main. Confirm design current, Zs and disconnection times for both MCBs, and ensure upstream protection is coordinated with the 100A main switch and cable size.
| Part Code | Incomer | MCB Set | Typical Use |
|---|---|---|---|
| WMMS/616 | 100A Main Switch | 6A + 16A (B) | Lighting + light power/tool circuit |
| WMMS/620 | 100A Main Switch | 6A + 20A (B) | Lighting + heavier socket or radial circuit |
| WMMS/632 | 100A Main Switch | 6A + 32A (B) | Lighting + high-load circuit (e.g. compressor, welder) |
The WMMS/616 gives you a simple, regulation-ready way to split out garage lighting and light power circuits in one metal garage unit. For other MCB combinations or additional ways, view our wider consumer unit range or speak to your designer about alternative board options.