The 47BWSP4R1M1QT is a sealed miniature rocker switch from Grayhill's Series 47B, designed for reliable switching in compact applications. This SPDT (Single Pole Double Throw) switch features IP-67 sealing to protect against dust and moisture ingress, with a dielectric strength rating of 1,500 V RMS at sea level. The switch is constructed with glass-filled nylon 6/6 case and bushing (UL94V-0 flame retardant), a nylon black actuator with internal O-ring seal, and copper alloy contacts with gold plate over nickel. Operating reliably across a temperature range of -30°C to 85°C, this switch is ideal for industrial control panels, marine equipment, and other environments requiring sealed switching solutions where space and weight savings are critical.