Allen-Bradley 800T-E11A Key-Operated Cylinder Lock Push Button Switch

The Allen-Bradley 800T-E11A is a heavy-duty, key-operated push button switch designed for industrial control applications, providing secure operation to prevent unauthorized access or tampering. This device is part of the renowned 800T series from Allen-Bradley, known for its robustness in harsh environments such as manufacturing plants, machinery panels, and process control systems. It features a cylinder lock mechanism that requires a key to activate, enhancing safety and security in operations where accidental or unauthorized switching could lead to hazards or downtime. Key benefits include high durability with a 600V AC maximum rating, reliable contact blocks for consistent performance, and compatibility with standard 30mm mounting holes, making it easy to integrate into existing control panels. Compared to similar products like those from Schneider Electric or Siemens, the 800T-E11A offers superior build quality and longevity, with drawbacks primarily related to its higher cost and the need for key management. Applications include machine start/stop controls, emergency overrides, and secure mode selections. Based on attached images, the unit appears used with visible wear, rust on the key and terminals, and a functional key included. Serial number is Series A, with no visible damage to critical components. For detailed specs, refer to the official datasheet (e.g., Rockwell Automation publication 800T-TD009A-EN-P). Estimated market value for used condition is $50-100 USD, based on recent eBay and industrial surplus listings.