Description
The 100A SP&N Fused Switch with Type 2 Surge Protection Device (SPD) from FuseBox is a compact mains isolator designed for domestic and light commercial installations. It combines a single-phase isolator, multiple fuse ratings, and surge protection in one enclosure to simplify incoming supply protection and meet current UK wiring practices.
Suitable for consumer unit installations where upstream isolation and transient overvoltage protection are required.
Key Features
Integrated Type 2 SPD for protection against transient overvoltage
Includes 63A, 80A and 100A gG cartridge fuses
Single phase + neutral (1P+N) configuration
Rated up to 100A AC21
Padlockable isolator handle for secure isolation
Steel enclosure with durable powder-coated finish
Conduit knockouts top and bottom for flexible cable entry
Tail clamp supports up to 25mm² conductors
Manufactured to BS EN 61439-3
Technical Specifications
Electrical
Voltage: 230V / 50Hz
Maximum Load: 100A (AC21)
Poles: 1P + N
Fuse Type: gG (general purpose)
Fuse Size: 22 × 58mm cylindrical
Supplied Fuse Ratings: 63A, 80A, 100A
Surge Protection: Type 2 SPD
IP Rating: IP20
Construction
Material: 1mm electro-galvanised steel (zinc coated)
Finish: RAL 9001 smooth powder coat
Tail Clamp: Yes – up to 25mm²
Padlock Facility: Yes
Cable Entry:
1 × 20mm knockout (top & bottom)
1 × 32mm knockout (top & bottom)
Dimensions
Height: 314mm
Width: 236mm
Depth: 88mm (including lid)
Typical Applications
Domestic consumer unit incoming protection
Meter tail isolation and surge protection
Small commercial distribution boards
Retrofit surge protection upgrades
Compliance
Manufactured in accordance with BS EN 61439-3 for low-voltage distribution assemblies.
Model: SF0100T2
Product Type: 100A SP&N Fused Switch with Type 2 SPD








