Schneider Electric ZB4BD922 Potentiometer head, metal,black, Ø22, for use with Ø 6.35 mm shaft. This Harmony XB4, head and mounting base is used for potentiometer application. This head and mounting base for potentiometer provides an ergonomic external interface for controlling your machines thanks to its knurled knob head. It is ideal for controlling key parameters of automation components like drives and inverters and is easily installed and replaced on compatible potentiometers. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP65. It has a metal bezel, this makes it Ideal for applications requiring high impact and vibration resistance. It is designed to fit in a standard 22mm cutout, ensuring compatibility when installing in pre-existing machinery. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product. Official Schneider characteristics include Range of product: Harmony XB4; Product or component type: Head + mounting base for potentiometer; Device short name: ZB4; Bezel material: Chromium plated metal; Mounting diameter: 22 mm; Product compatibility: For use with Ø 6.35 mm shaft; Sale per indivisible quantity: 1; Head type: Standard. Harmony XB4 devices use a chromium-plated metal bezel and are designed for robust panel operation where clear manual control, indication or machine safety interfaces are required.