Designed for commercial and industrial applications where safety, high performance and continuity of service are essential. Listed to UL standard 98 enclosed and dead front switches. Certified to CSA standard 22.2 no. 4-04 enclosed and dead front switches. Meets or exceeds NEMA KS1 standard for enclosed switches - type HD. Fusible and non-fusible switches available (consult BuyLog for interrupt ratings). Quick make, quick-break mechanism. 60/75°C conductor rating. Full cover interlocks.NEMA type 4X enclosure grade 304 stainless steel (catalog numbers with SS suffix).