Staubli SEB2-F2,8 Series 2 mm Press-in Sockets. SEB2-F2,8 series 2 mm press-in sockets with a rigid insulation sleeve for pressing into predrilled panels. These sockets have a 600 V, CAT III / 10 A rating. The sockets are terminated with a 2.8 x 0.8 mm tab terminal and are designed to mate with spring loaded 2 mm diameter plugs which also have a rigid insulation sleeve. The insulation sleeves of these SEB2-F2,8 series 2 mm sockets are colour coded for ease of identification. Features and Benefits. 600 V, CAT III / 10 A rating Rigid, colour coded insulation 2.8 x 0.8 mm tab terminal