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Schneider Square D Switch Fuses

Schneider Square D Enclosed Switch Fuses

Product-code: SD**SFK


Quick Overview

Square D enclosed switched fuses are fully rated to meet the requirements of AC23 up to 100A.

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Regular Price: £166.78

Special Price: £100.07

39% off RRP

Regular Price: £166.78

Special Price: £100.07

39% off RRP

Square D enclosed switched fuses are fully rated to meet the requirements of AC23 up to 100A. Twinbreak eliminates the need to have a complete knowledge of the circuit and its application before selecting a device. Twinbreak is available as a switch disconnector fuse or switch disconnector. 

It is supplied complete for individual mounting, mounting on cable trunking or for mounting on the Twinbreak range of busbar chambers.


  • Units tested and constructed to BSEN60947-3
  • Live terminal barriers 
  • Clear visual indication of the contact position
  • Door interlock preventing the door being opened with the switch on
  • Door interlock has integral defeat mechanism
  • Operating handle is padlockable in the ON or OFF position (padlock shackle 5-10 mm dia.) 
  • Operating handle stays in position once the door is opened 
  • Supplied with fuses fitted 
  • Fully removable single piece switch unit, for ease of installation 
  • ASTA certified to AC23 up to 100A (AC22B 125A & 160A) 
  • ASTA certified short circuit rating of 50kA and 12 x rated current for 1 second 
  • IP41 degree of protection
  • Fully removable cross rails 100A and above for ease of cabling as cables can be laid in
  • Fully removable gland plate allows the unit to be directly connected to 3” cable trunking
  • Positive contact indication
  • Easy access to fuses 
  • Cable knockouts provided as standard 
  • Lift off door provides greater access to switch units, for ease of cabling and for installation 
  • The door opens within its own overall dimensions allowing Twinbreak units to be mounted adjacent to each other 
  • Keyhole slots on the enclosure base allow ease of installation 
  • Fully shrouded operating mechanism ensure cables etc do not interfere with the switch operation
  • Neutral terminal block with link fitted as standard 
  • Earthing kit supplied as standard
  • Manufacturer: Schneider 

Schneider Switch Fuses

3 Phase with Neutral Link
  • SD203SFK - 20A
  • SD323SFK - 32A
  • SD633SFK - 63A
  • SD1003SFK - 100A

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