The 2GA51-78 is a G-Series single-pole toggle switch featuring On-None-Off circuitry and a sealed bat-style actuator. It is rated for 10A at 250VAC and 15A at 125VAC, with a 3/4 HP rating from 125-250VAC, and connects via .250 tab terminals. This switch offers a mechanical life of 100,000 cycles, an electrical life of 50,000 cycles, and operates in temperatures from 0°C to 85°C. As a general-purpose component, it is suitable for various applications such as industrial controls, marine equipment, and generators where a reliable sealed switch is needed.