A40303RNZGK is a 4-pole rotary switch from the A Series designed for multi-position switching applications requiring positive detent operation. The switch features 3-position capability with 4 independent poles (terminals A, B, C, D with positions 1-3, 5-7, 9-11), supporting both shorting and non-shorting contact configurations. It is rated for 2.5 AMPS @ 125 V AC and 350 mA @ 125 V DC (UL/CSA), with a continuous carry rating of 5 AMPS, and offers an electrical life of 15,000 make-and-break cycles at full load. The switch operates reliably across -30°C to 85°C, features contact resistance below 20 mO typical, and is RoHS compliant. Common applications include automotive systems, appliances, and industrial equipment where reliable multi-pole switching and positive detent positioning are essential.