Switch Fuse units for use in domestic household premises BS 7671 Amendment No.3 : 2015 IET Wiring Regulations

Wylex Domestic Switch Fuse units are available in three ratings 60A, 80A and 100A. These dedicated main switch fuse units are designed to make the installation and connection of sub main or system extensions easy.

All units have been designed, manufactured and tested to meet IEC60947 -3. Wylex Domestic Switch Fuse units are supplied with a BS1361 fuse and tested to the relevent clauses within BS EN 61439 -3 as required by BS 7671 Amendment 3

Features and Benefits 

• Enclosed in a robust all metal (non combustible) enclosure 
• Screw retained cover 
• 32mm standard knock out for cable gland - top & bottom 
• Dual screw terminals throughout 
• Metal Door and Robust metal enclosure (1.0mm Thick) Steel Construction 
• Live and Neutral cable capacity 16mm sq min, 35mm sq max 
• 16mm Earth terminating point inside enclosure 
• Supplied complete with fuse (100A, 80A or 60A) 
• Low smoke & fume paint finish 
• Lockable mechanism for isolation safety purposes 
• Rotating fuse carrier for easy withdrawal 

Dimensions (mm) 

Range Overview 

These robust all metal switch fuse units are supplied complete with fuse that sits within and easy open rotating fuse drawer mechanism to make access for fuse change easy and quick. The switch also incorporates a locking location to aid secure isolation practices. 

These new units feature dual screw terminals on L and N connections (similar to meter connections) that will accept cables up to a maximum of 35 Sqmm and minimum of 16 Sqmm, integral earth terminals are 16mm max. 

Cable access can be made through the 32mm knockouts that are provided for fast installation & ease of cabling and these are compatible with the Wylex EIU mains tails gland that automatically provides mechanical protection, added insulation, and the necessary IP rating for cable entries and compliance with BS7671.