Core Features Bolt-Actuated Design for Heavy-Duty Sensing: Functions as a robust toggle bolt switch engineered to detect position or presence in high-vibration industrial environments, featuring a 12mm hardened steel bolt actuator and reinforced housing. This design is optimized for applications requiring positive mechanical actuation, such as door interlocks, machine guards, or heavy equipment safety systems. Single-Pole Single-Throw (SPST) Configuration: Equipped with a heavy-duty SPST (NO) contact system rated for AC 250V (15A resistive) and DC 30V (10A resistive), making it suitable for controlling high-power circuits in machinery, including motors, heaters, or hydraulic valves. The silver-plated copper contacts ensure excellent conductivity and arc resistance, supporting 1 million+ mechanical operations. Rugged Construction for Extreme Conditions: Housed in a cast iron housing with a powder-coated finish, providing exceptional resistance to mechanical impact, corrosion, and extreme temperatures. The switch achieves IP67 protection (IEC 60529) for dust tightness and immersion in water up to 1m, ensuring reliability in harsh environments like construction sites, mining equipment, or outdoor machinery. Positive Actuation with Overload Protection: The bolt actuator requires a minimum 10N force to trigger, preventing false activation from vibration or minor impacts. It features a spring-return mechanism (20N return force) that ensures reliable reset, even after heavy use or exposure to contaminants like dirt or oil. Secure Mounting for Vibration-Prone Systems: Designed for flange mounting via four M6 screws, with a reinforced base that withstands high levels of vibration (20G acceleration). This stability makes it ideal for installation on engines, compressors, or heavy machinery where movement could compromise other switch types. Versatile Terminal Connections: Equipped with screw terminals accepting 14–20 AWG wires, with optional cable gland (M20) for sealed wiring in wet or dusty environments. This flexibility supports integration into both permanent and temporary industrial wiring systems. Typical Applications The ALCO Switch TBP-11 is engineered for heavy-duty position sensing in rugged industrial equipment, with core use cases including: Machine Guard Interlocks: Installed on safety gates or guards of industrial presses, saws, or robots to shut down machinery when guards are opened, preventing workplace accidents. Construction Equipment: Used in excavators, bulldozers, or cranes to detect the position of moving parts (e.g., bucket arms, boom extensions), ensuring safe operation within mechanical limits. Industrial Door Systems: Deployed in large warehouse doors, loading docks, or container handling equipment to sense door closure, triggering locking mechanisms or alarm systems. Marine & Offshore Equipment: Integrated into ship hatches, crane controls, or offshore platforms to monitor component positions, with IP67 protection resisting saltwater and harsh weather. Mining Machinery: Used in conveyor belts, drilling equipment, or ore crushers to detect jams, overloads, or component misalignment, with rugged design withstands dust and vibration.