Ensure the security and proper operation of your Cutler Hammer-Eaton modular selector switches with this genuine M22-ES-MS1 extra key. Designed for 22mm selector switch applications, this key is essential for safety lockout functions, providing reliable access control..This product is an extra key for Cutler Hammer-Eaton M22-ES-MS1 modular selector switches. It is designed for 22mm selector switches and is used for safety lockout purposes.Associated Product Line: Cutler Hammer-Eaton | Switch Size Compatibility: 22mm