... .1.Specification:SNAxx20 (xx=06, 08, 10, 12......72)SNAxx30 (xx=06, 08, 10, 12.....72)SNAxx40 (xx=04, 06, 08, 10 ... axis,for 3 axesDielectric strengthAC1500V, 60sInsulation resistance>100MΩ High Sensitivity Photo-Electronic Safety Device for Machine