26-I-12D is a Guardian Electric 12A Double Pole Industrial Interlocked Receptacle. This device has an outer housing of high moist-resistance, heat-resistant UL94V0 rated PVC, and an inner housing made of impact-resistant, glass-filled nylon. The receptacle contacts are constructed of high-grade copper alloy with a silver-cadmium oxide plating to ensure superior electrical performance and reliability. The receptacle is designed with an integrated interlock feature, which prevents both poles of the device from being connected simultaneously, providing additional safety and enabling compliance with safer circuit requirements. The device is suitable for use in industrial or commercial applications, such as automotive and manufacturing, and is UL and CSA approved.