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The WME22/MS100 Main Switch Consumer Unit is the largest in the range — a 22-module metal enclosure with a 100A main switch incomer. With 20 usable ways, it provides maximum capacity for full domestic rewires, HMOs, or small commercial installations. Built in powder-coated steel and supplied with raised DIN rails, pre-fitted earth/neutral bars, and multiple knockouts, it’s fully compliant and installer-ready.

Installer Tip: A 20-way board ensures future-proofing for even the largest homes or commercial sites, giving ample spare ways for EV chargers, solar PV, or additional circuits.

Key Features

  • 22-module metal enclosure – 20 usable ways
  • 100A main switch – double-pole isolator included
  • Compliance: BS7671:2018 (Amendment 2) & BS EN 61439
  • Flexible install: knockouts on top, bottom, sides, and rear
  • Installer-friendly: raised DIN rail, earth & neutral bars pre-fitted
  • Durable finish: powder-coated steel construction

Compare Main Switch Consumer Unit Variants

Model Modules Usable Ways Incomer Dimensions (mm)
WME04/MS100 4 2 100A Main Switch 160 × 240 × 112
WME06/MS100 6 4 100A Main Switch 160 × 240 × 112
WME08/MS100 8 6 100A Main Switch 200 × 240 × 112
WME10/MS100 10 8 100A Main Switch 216 × 240 × 112
WME12/MS100 12 10 100A Main Switch 232 × 240 × 112
WME14/MS100 14 12 100A Main Switch 304 × 240 × 112
WME16/MS100 16 14 100A Main Switch 340 × 240 × 112
WME18/MS100 18 16 100A Main Switch 376 × 240 × 112
WME22/MS100 (This Product) 22 20 100A Main Switch 400 × 240 × 112
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