This Harmony 9001K standard contact block uses screw terminals and has 1 x NO contact. It is compatible with Harmony 9001K pushbuttons and switches. This contact block allows quick and easy replacement and configuration of your pushbuttons and selector switches. It is easy to install and replace on the complete 9001K pushbutton units and selector switches and connects to control circuits via simple screw terminal connections. The clear colour of the cover allows the user to visually identify it from a distance. The IP20 rating protects the operator from unexpected contact with energised circuits.