From the Manufacturer

The Crouse-Hinds AR642 Arktite Heavy-Duty 60 Amp Circuit Breaking Receptacle Housing, 3-Wire/4-Pole is polarized and weather proof. It has a device rating of 60 AMP and the grounding style number 1. It's made from natural high impact strength copper-free aluminum and has a spring door. From the modest upstate New York beginnings in 1897, Crouse-Hinds has grown into a worldwide organization that manufactures or markets products on every continent. Through aggressive leadership in product innovation, engineering, manufacturing, distribution and technical support we have quite literally, set the standards by which other manufactures in our industry are measured.