This contact block is a separate component of the range of control and signaling units, Harmony 9001K and 9001SK, with a diameter 30 mm. It is compatible with Harmony 9001K or 9001SK push buttons and switches. It uses screw-clamp terminals and has 1 x NC contact. This contact block allows fast and easy replacement and configuration of your push buttons and selector switches. It features standard contact operations. Its protection index is IP20, protecting operators from unexpected contact with live circuits. It weighs 23 g. The 30 mm Harmony range offers a large choice of robust and reliable products to meet a great number of applications in heavy industries such as petrochemy, metallurgy, mining, oil and gas wastewater treatment, and automobile manufacturing. It is UL-listed, CSA-certified, CE-declaration of conformity, and RoHS-compliant.