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27KV composite arrestor high voltage (IEC standard): 

Rated voltage: 27KV(RMS) 

Maximum continuous operating voltage: 22KV(RMS) 

Current impulse residual voltage: 

1/4us Lightning current impulse: 92KV(crest) 

8/20us Lightning current impulse: 81KV(crest) 

30/60us Switching current impulse: 69.8KV(crest) 

2ms Rectangular current impulse withstand: 250A 

4/10us High current impulse withstand: 100KA(crest)

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 Arrester type (10kA)           Rated voltage (kA)  MCOV (kV)  Max residual voltage (kV) 2000 μs rectangular current withstand (A)   4/10μs high current impulse  Dimension (mm) No.of sheds  Creepage distance(mm) 
 Steep current impulse 1/10μs  Lightning impulse 8/20 μs  Switching current impulse 30/60 μs  A  B
 YH10W-6  6  4.8  20.7  18  15.3   250   100  250  125  3  210
  YH10W-9  9  7.2  31.0  27  23   250   100  280  155  4  280
  YH10W-11  11  8.8  37.9  33  28.1   250   100  310  185  5  350
  YH10W-12  12  9.6  41.5  36  30.6   250   100  310  185  5  351
  YH10W-15  15  12.0  52.0  45  38.3   250   100  340  215  6  419
  YH10W-18  18  14.4  62.0  54  46.0   250   100  370  245  7  487
  YH10W-21  21  16.8  72.5  63  53.5   250   100  400  275  8  555
  YH10W-24  24  19.2  82.5  72  61.2   250   100  430  305  622
  YH10W-27  27  21.6  93.2  81  69.0   250   100  460  335  10  690
  YH10W-30  30  24.0  103.5  90  76.5   250   100  520  395  12  760
  YH10W-33  33  26.4  113.8  99  84.2   250   100  550  425  13  894
  YH10W-36  36  28.8  124.2  108  91.8   250   100  550  425  13  894
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