24KV composite arrestor high voltage (IEC standard): 

Rated voltage: 24KV(RMS) 

Maximum continuous operating voltage: 19.2KV(RMS) 

Current impulse residual voltage: 

Steep current impluse 1/10us: 82.5KV(crest) 

8/20us Lightning current impulse: 72KV(crest) 

30/60us Switching current impulse: 61.2KV(crest) 

2ms Rectangular current impulse withstand: 250A 

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