WD (X1 Y1) KL (X1 Y2)
WD (X1Y1): 1pF to 0.01uF KL (X1Y2): 1pF to 0.015uF
WD : X1=760/660/400Vac, Y1=500/250Vac KL : X1=500/440/400Vac, Y2=500/300/250Vac