PCB terminal block connection facility,contact credibility,and the wire guard protect the lead effectively.Provide the wire size from 0.08mm2 to 3.3mm2.Pitchs from 3.5mm to 10.16,and 3 wire insertion directions:90 degree,135 degree,180 degree.With scrabbling construction or unitary construction,the parts can be assembled by 2 ways and 3 ways.The product is designed in accordance with UL486E,CSA22.2 NO.158,IEC 998,GB13140 standards.