Type 4/4X and 12 with viewing window heavy duty safety switches. 30600A 3 pole 600V maximum in fusible and non fusible versions in Type 4/4X stainless steel and Type 12 enclosures. All allow viewing of visible blade position. 30200A also allow viewing of indicating type fuses. Rugged installer friendly enclosure design features a gasket flange with continuously welded seams. Tool free cover latches. Two three and four point mounting.