The Allen Bradley AB Safety Interlock Switch Guardmaster 440K-C21054 /B is a high-quality switch accessory designed for electrical equipment and industrial use. As part of the Guardmaster line from Allen-Bradley, this switch features a reliable fuse type mechanism to ensure safety and protection in industrial settings. With its durable construction and trusted brand name, this interlock switch is a valuable component for businesses and industrial applications requiring reliable electrical equipment and supplies.