This Harmony XB4, single contact block is pre-assembled on a body/collar fixing unit. It features 1 normally open (NO) contact. It is compatible with Harmony XB4 units. It consists of a single contact block pre-assembled on a fixing collar unit. Simply adding a head to this assembly will provide you with a complete ready-to-use push button. It protects operators from unexpected contact with live circuits thanks to its IP20 protection index. 1 million cycle high endurance provides less maintenance and damage in your installation. Its wide range of operating temperatures from -40C to 70C allows versatility in usage of product. This metal product weighs 49g. It is easily installed with push-in terminal connections. Thanks to its simplicity of installation, flexibility, and robustness, it meets the requirements of the majority of industrial applications Harmony delivers an innovative and ergonomic design that improves the reliability of panels, machines, and processes.