Adalet XCE Explosionproof Control Enclosures, rated for Class 1, Division 1 & 2 - class 1 div 1 enclosures. Class 1 Div 1 Enclosure - Copper free aluminum (3/10 of 1%). Standard Cover Bolts: Steel, zinc plated and coated. Stainless Steel Bolts available (additional charge). Galvanized Steel Mounting Pan included. Modifications and/or assembly available. Enclosure carries an N4 rating for outdoor use.