Controls and Switchgear Switch Fuses
 







CONTROLS & SWITCHGEAR  



Switch Fuses 32 to 63

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ASTA Certified to
IEC 947-3

Tested by TCA
Lane Cove, Sydney

 
Switch Sizes Sizes 32 and 63
BS Pattern Catalog No. ETSF32GI ETSF63GI
Rated Insulation Voltage 750V 750V
Rated thermal current & operational In free air 660V 32A 63A
current AC22 Ambient temp. 40°C In enclosure (no ventilation) 660V 32A 63A
free mounting position.  note (1) In enclosure (solid links) 660V 40A 75A
Rated Operational voltage 500V 660V
Rated operational current in categories     220V 32A 63A
AC23 and AC3. Time interval between     380V 32A 63A
operations 20 seconds in AC3.     415V 32A 63A
      660V - 40A
Rated operational current DC23 Two poles in series 110V - 63A
  Two poles in series 220V - 63A
  Three poles in series 440V - 30A
   
Rated operational power in categories   220V 7.5kW 15kW
AC23 and AC3. Time interval     380V 11kW 30kW
between operations     415V 15kW 30kW
20 seconds in AC3  note (2)     500V 15kW 30kW
     

660V

- 30kW
Rated breaking capacity     500V 300A 500A
AC23.COSø = 0.35     660V - 350A
Rated breaking capacity     110V - 300A
DC, L/R = 15mS     220V - 250A
      440V - -
Rated fused short circuit current R.M.S. value 500V 50kA 50kA
and making capacity on Peak value 500V 105kA 105kA
fault level ......... R.M.S. value 660V 50kA 50kA
  Peak value 660V 105kA 105kA
........with back up fuses of rating       35A 63A
Maximum peak let through current     660V 6kA 10KA (4)
Rated short-time withstand current 1sec     660V 15kA 2kA
Rated capacitor power  note (3)     380V 15kVAr 30kVAr
      415V 16kVAr 32kVAr
Mechanical / Electrical endurance   3-pole switch fuses 20000/1500 20000/1500
at rated current  PF 0.65       operations operations
Fuse types BS pattern   BS88   A2-A3 A2-A3
distance of fixing holes       73mm 73mm
Weight   3-pole switch fuses 1.6kg 1.6kg
Notes:
  (1) Ambient temperature 60°C, derating 20% mounting on 'ceiling',
    derating 10% on 'wall', horizontal 8%.
  (2) Some fuse links limit these figures further. Starting current characteristics
    must be considered separately.
  (3) The capacitor rating of the switch fuse is limited by the fuse link.
  (4) UC-415V at 660V max peak let through is 8kA.

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