The Wylex DSFNFM is a dedicated all metal sub main switch fuse designed to be used in domestic premises making the installation and connection of sub mains or system extensions quick and easy. Particularly suited to when larger single occupancy buildings are being converted into several individual apartments 

Fully Amendment3 compliant ensuring it meets the latest fire regulations its supplied without a BS1361 fuse fitted allowing the installer to choose the rating of the switch fuse to suit installation requirements. The enclosure is finished in low smoke & fume paint includes a metal door that is screw retained.

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 
• Low smoke & fume paint finish 
• Lockable mechanism for isolation safety purposes 
• Rotating fuse carrier for easy withdrawal 

DOES NOT COME WITH FUSES

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.