L&T Switch Disconnector Fuse Units

SDFs: Type – FNX

• Ratings: 32A to 800A in six frame sizes
• AC-23A rating for the complete range
• Available in TP, TPN and four pole versions
• High fused short circuit capacity (100kA)
• Electro dynamic compensated contact system
• Versatile handle (patented)
• High clearance and creepage distances
• Suitable for copper and aluminum terminations
• CE marking and conformance to IS: 13947-3, IEC: 60947-3
• Easy inspection and replacement of contacts
• Fuse barriers to prevent inter-phase short circuits
• DIN rail mounting up to 100A
• Suitable for horizontal and vertical installations
• Terminal shrouds for safety
• Telescopic shaft for the handle (Step less adjustment)
• Clear ON/OFF indication
• Aesthetic appearance

Accessories

• Auxiliary contact kit
• Castell lock
• Fuse operation indicator
• Extended terminal shroud
• Fuse puller unit
• Mechanical interlock kit

SDFs: Type – FN

• Ratings: 32A to 800A
• High fused short circuit rating (100kA)
• Full AC-23A utilization category
• Positive isolation of fuses
• Quad break contact system
• Separate arcing and current carrying zones
• High clearance and creepage distancesPhase barriers
• Suitable for aluminium terminations
• Built – in isolable or add on switched neutral
• Easy inspection and replacement of contacts
• Suitable for horizontal and vertical terminations
• Clear ON/OFF indications
• Available in sheet steel enclosure
• Conformance to IEC: 60947-3 and IS: 13947-3
• Switch interiors for panel mounting type FF /FFO/FAC

Ratings: 32/63/100
Versen: TP /TPN

SDFs: Type-FN

Accessories

• Handle assembly (Type A/B/ CE)
• Shaft extension kit
• Switched neutral kit
• Auxiliary contact kit
• Mechanical interlock kit
• Castell interlock
• Terminal shroud kit
• Interphase barrier kit

Spares

• Handle assembly
• Front Housing assembly
• Spare kit of contacts