Heavy duty non-fusible switch. 30 A, 600 VAC, 3-pole. 3-wire system. NEMA 4/4X (304SS) water/dust-tight enclosure. 12 to 2 AWG (copper/aluminium) wire range. 20 HP at 480 VAC, 30 HP at 600 VAC (3-phase) NEC standard. 5 HP at 250/600 VDC. 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. Suitable for use as service equipment when installed in accordance with the National Electrical Code. Meets or exceeds NEMA KS1 standard for enclosed switches type HD. Quick-make, quick-break mechanism. 60/75°C conductor rating. Full cover interlocks. NEMA type 4X enclosure grade 304 stainless steel (catalogue numbers with SS suffix).