This Schneider Electric Harmony 9001K standard contact block uses screw-clamp terminals and has 1 x NO + 1 x NC contacts. It is compatible with Harmony 9001K push-buttons and switches. It fits in a 30mm hole. 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 protects operators from unexpected contact with live circuits thanks to its IP20 protection index. Simple modular design facilitates post installation servicing, modification and adaption of machines by non-specialists. Clear labelling of the contact wiring and terminals names on the side of the block. Clear color scheme for NO and NC contact block types. Wide range of operating temperatures from -25C to 70C allows versatility in usage of product. Vibration resistant screw clamp connection terminals ensure high vibration resistance making product suitable installation on high impact machine.