The 2GK91-D-3B-B-XNC1 is a G-Series toggle switch from Carling Technologies designed for general-purpose switching in industrial and commercial applications. This model features a 10A 250VAC / 15A 125VAC / 12A 250VAC rating with ENEC/VDE approval, a nylon bat actuator (D-3B-B style) with 0.687 inch toggle length and 0.379 inch bushing length, and screw termination for secure mounting. The switch operates over a temperature range of 0°C to 85°C with 50,000 electrical cycles (maintained) and 100,000 mechanical cycles, providing reliable long-term performance. It is suitable for low-voltage 12/24V DC applications and is commonly used in marine, food service, generator control, industrial control, and office automation systems where dependable switching functionality is required.