Fused spur unit or fused connection unit, is an electrical switch with a built in fuse, designed for appliances that do not have or require a fused plug top. Fused spur units are also used for high powered electrical equipment with heavy continuous loads, so that the appliance can be isolated by a single cable from a ring main for safety and maintenance purposes. This model is 13A rated. Made from high quality ultra slim, premium grade material. Complete with integral gasket. Compliant to all relevant British safety standards. Minimum mounting depth: 25mm. Dimensions: 87.5mm x 87.5mm. Supplied in retail blister with full fitting instructions. 15 year guarantee.