The Square D? by Schneider Electric brand Heavy Duty Safety Switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. They have been designed to have a significantly higher durability than a standard switch and have a durability three times greater than NEMA standard. All heavy duty safety switches feature a quick-make, quick-break operating mechanism, a dual cover interlock and a color-coded indicator handle. Heavy duty switches are the ideal for your electrical disconnect and protection for all your commercial and industrial needs. This is a two pole fusible heavy duty safety switch that is rated at 1200A with voltage of 240VAC and 250VDC. This switch is rated at 50hp for 1 phase with standard fuses. For 250VDC, it also is rated at 50hp. This unit is in a Type 3R enclosure and includes a factory installed neutral. It is UL listed with the file E2875.