Controls and Switchgear Switch Fuses 4
 







CONTROLS & SWITCHGEAR  



Switch Fuses 630 to 800

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ASTA Certified to
IEC 947-3

Tested by TCA
Lane Cove, Sydney

 
Switch Sizes Sizes 630 and 800
BS Pattern Catalog No. ETSF630B3 ETSF800B3
Rated Insulation Voltage 750V 750V
Rated thermal current & operational In free air 660V 630A 800A
current AC22 Ambient temp. 40°C In enclosure (no ventilation) 660V 560A 720A
free mounting position.  note (1) In enclosure (solid links) 660V 700A 900A
Rated Operational voltage 660V 660V
Rated operational current in categories     220V 630A 800A
AC23 and AC3. Time interval between     380V 630A 800A
operations 20 seconds in AC3.     415V 630A 800A
      660V 630 720A
Rated operational current DC23 Two poles in series 110V 630A 720A
  Two poles in series 220V 630A 800A
  Three poles in series 440V 630A 800A
Rated operational power in categories   220V 180kW 200kW
AC23 and AC3. Time interval     380V 315kW 350kW
between operations     415V 340kW 380kW
20 seconds in AC3  note (2)     500V 400kW 470kW
     

660V

540kW 600kW
Rated breaking capacity     500V 5040A 6400A
AC23.COSø = 0.35     660V 5040 6400A
Rated breaking capacity     110V 3200A 3200A
DC, L/R = 15mS     220V 2500A 2500A
      440V 2500A 2500A
Rated fused short circuit current R.M.S. value 500V 80kA 80kA
and making capacity on Peak value 500V 175kA 175kA
fault level ......... R.M.S. value 660V 50kA 50kA
  Peak value 660V 105kA 105kA
........with back up fuses of rating       630A 800A
Maximum peak let through current     660V 50kA 65kA
Rated short-time withstand current 1sec     660V 16kA 16kA
Rated capacitor power  note (3)     380V 250kVAr 310kVAr
      415V 270kVAr 340kVAr
Mechanical / Electrical endurance   3-pole switch fuses 6000/1000 6000/500
at rated current  PF 0.65       operations operations
Fuse types BS pattern   BS88   C1-C2 C1-C3
distance of fixing holes       133, 184mm 133, 184mm
Weight   3-pole switch fuses 15.5kg 17.0kg
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.
   

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