A40315RNZQ is a 4-pole rotary switch from the C&K A Series, designed for multi-position switching applications. This switch features 3 positions with non-shorting (break-before-make) contacts and Q contact material for RoHS compliance. It offers a contact rating of 2.5 A at 125 V AC and 350 mA at 125 V DC, with contact resistance below 20 mO typical. The switch utilizes 3/8-32 thread panel mounting and solder lug terminations, with an operating temperature range of -30°C to 85°C. Common applications include automotive, industrial equipment, and appliances where reliable multi-pole switching is required.