... block and connector: 1,Brass connector 2,only high quality 3,widely used PCB screw Pluggable ( Plug in design ... ) terminal block(terminal connector)used for a variety of equipment control system circuit board ... ,Blue,Black,Orange,Red,Yellow,Whiteoperation temperature-40oC~+150oCshort-time temperature+250oC for 5secrated voltage300VACrated current16AContact resistance20 ...