A40303RNZB is a 3-pole rotary switch with 30° indexing and 3-position capability, designed for multi-pole switching applications requiring positive detent operation. The switch features a contact rating of 2.5 AMPS @ 125 V AC and 350 mA @ 125 V DC (UL/CSA), with a continuous carry rating of 5 AMPS, and contact resistance below 20 mO typical at 2-4 V DC with 100 mA. It offers electrical life of 15,000 make-and-break cycles at full load with up to 300,000 detent operations, insulation resistance of 10? O minimum, and dielectric strength of 1,000 Vrms minimum at sea level. The switch operates reliably across a temperature range of -30°C to 85°C and is available with multiple mounting styles (3/8-32 threaded or M10 x 0.75 metric), termination options (solder lug, PC thru-hole, or modular base), and contact materials (silver, gold, or gold over silver). Common applications include automotive systems, major and small appliances, and industrial equipment where reliable multi-position switching is required.