This Harmony 9001K, contact block uses screw-clamp terminals and has 1 x NO + 1 x NC contacts. This contact block allows fast and easy replacement and configuration of your push buttons and selector switches. It is easily installed and replaced on 9001K complete push button units and selector switches and connects to control circuits with simple screw-clamp connections. Its clear color of cover allows users to identify it visually at a distance. It is compatible with Harmony 9001K push buttons and switches. Its wide range of operating temperatures from -25°C to 70°C allows versatility in usage of product.