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Thanks for the reply. The strange thing is that I installed the MCB into a spare slot and connected it up. Switched on and the new MCB was working plus all of the others except for the 32A. Checked the connections and all looked ok but it still wouldn't work. So I removed the new MCB and without...

In my cellar I have a doube socket connected to a type b 16A MCB. When using a 110v transformer it tends to trip the MCB when first plugging the transformer in. The suggestion was to change the B curve MCB to a C curve MCB. The CU is a Wylex NH which is populated with NSB type MCBs. Looking...