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Wylex Mark 1 NH NSB Range - 6a to 40a Single Pole Type B MCB's rated @ 6kA with coloured switch toggles. This is the older form of NSB MCB with the classic Wylex coloured toggle switch, indicating the amperage of the breaker, i.e. White = 6a, Grey = 10a, Blue = 16a, Yellow = 20a, Red = 32a and Orange = 40a.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.