Technical Information
                
                    
                        
                            | Item condition | New | 
                        
                            | Manufacture name | Harmony XB4, Key switch selector head, metal, black, Ø22, key n°421E, 2 positions, spring return right to left | 
                                                    
                                | Brand | Schneider Electric | 
                                                                            
                                | Categories | Switch & Indicator Front Elements 
 | 
                                                                            
                                | Country of origin | FR | 
                                                                                                                                                            
                                    | Hole diameter | 22.5 mm | 
                                                            
                                    | Number of switch positions | 2 | 
                                                            
                                    | Degree of protection (IP), front side | IP66 | 
                                                            
                                    | Type of control element | Key | 
                                                            
                                    | Colour control element | Other | 
                                                                        
                 
                                    Packing details
                    
                        
                                                            
                                    | Packing level 1 | 3389110122022 | 
                                                            
                                    | Packing level 2 | 3389110122020 | 
                                                    
                     
                
                                    Other Technical data
                    
                                                    
                                                                    
                                        | Suitable for illumination | No | 
                                                                    
                                        | Spring-return | Yes | 
                                                                    
                                        | Colour front ring | Chrome | 
                                                                    
                                        | Width opening | 0 mm | 
                                                                    
                                        | Height opening | 0 mm | 
                                                                    
                                        | Material front ring | Metal | 
                                                                    
                                        | With front ring | Yes | 
                                                                    
                                        | Construction type lens | Round | 
                                                                    
                                        | Switching function latching | No | 
                                                                    
                                        | Degree of protection (NEMA) | Other | 
                                                            
                                             
                
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                                    Description
                    
                        This Harmony XB4, black head with key (key no.421E) for key selector switch has 2 positions, operates with spring-return-from-right-to-left mechanism with key withdrawal on left position. This head with key provides a versatile interface for controlling your machines. It is easily installed and replaced on compatible complete key selector switch units to provide a secure manner for authorized staff to switch between process or machine operating modes. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. 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. Secure machine and system operation with a key, only available to authorized operators. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product. Key removal allowed in only one of the positions, allowing for advanced interlocking between various parts of a machine or process, while limiting human errors.