The 1NT1-1A is a transportation-grade, single-pole double-throw (SPDT) toggle switch with three distinct positions. It is designed for panel mounting via a 15/32 inch bushing and utilizes screw terminals for secure electrical connections. This switch features a locking lever to prevent unintended changes in position, enhancing safety and reliability. It is rated for a wide range of resistive loads, from 0.5 A to 15 A for AC circuits up to 277 Vac, and 0.5 A to 20 A for DC circuits up to 28 Vdc. Its robust design makes it suitable for demanding applications in industrial controls, machinery, and transportation equipment.