Specifications:
1) According to protection function: BY1-D, BY1-C, BY1-B
2) Composed type: 1 pole , 2 poles, 3 poles, 4 poles
3) Max continuous operating voltage: 140, 275, 320, 385, 420, 550V
4) Nominal discharge current (8/20 ?): 5, 15, 20, 30kA
5) Max discharge current (8/20 ?): 10, 40, 60kA
6) Response time: less than 25ns