Videos of replace fuse box with consumer unit Click to view on YouTube4:19Installing MCB in consumer unit. Replacing fuse in fuse box wiring uk165K views · Feb 5, 2017YouTube › How2D2Click to view on YouTube37:24Consumer Unit Replacement- Installing a Hager RCBO consumer unit to replace an old Crabtree one41K views · 8 months agoYouTube › Artisan ElectricsClick to view on YouTube0:37Time lapse of Changing an old fuse box to a new consumer unit18K views · Jul 28, 2016YouTube › Artisan ElectricsClick to view on YouTube14:10Consumer Unit Replacement - Installing - upgrade - How to change a Consumer Unit3 views · 6 months agoYouTube › Rayan Building Maintenance LtdClick to view on YouTube21:57Teardown of an old British Wylex electrical fuse box. (with bare fuse wires)105K views · 5 months agoYouTube › bigclivedotcomClick to view on YouTube5:22Understanding Your Fuseboard and RCD159K views · Oct 3, 2012YouTube › Sugarhouse PropertiesSee more videos of replace fuse box with consumer unit Fuse Box and Consumer Unit Replacement and Costs An old-style fuse box will have a series of fuses contained inside fuse carrier which you can manually remove and replace when one of them goes off following a power overload. The picture on the right show a typical fuse box. A consumer unit however, will be made of a horizontal row of what is known as MCB (Mini circuit breakers). Replacing your fuse box / consumer unit Things to consider when hiring an electrician to replace your fuse box / consumer unit. Having made the decision to replace your old fuse board, it is important to ensure that this important job is completed by a competent electrician.