12 Gauge Galvanized Steel. Stainless Steel Hardware. Powder Coat Finish. Munsell 7GY3.29/1.5 Green. Live Front Safety Barriers (NESC Rule 381G). Schematic Labeling. Fuse/Elbow Compartment Labels. Stainless Steel Ground Nuts. ANSI C57.12.28 Security. SML-20 or SM-20 Style Fuse Mountings (For SMU-20 Fuses). Also supplied with McGaw NX or GE EJO Fuse Clips.