Schneider Electric's Square D double throw safety switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. Double throw safety switches are designed for commercial, industrial, and manufacturing installations. All heavy duty safety switches feature a quick-make, quick-break operating mechanism, a dual cover interlock, and a color coded indicator handle. This double throw safety switch is a non fusible disconnect and has a rated current of 400A for 600VAC and 600VDC This general duty switch has a 3 wire configuration with 3 poles. The enclosure is surface mounted and is a Type 3R. All heavy duty safety switches are tested per UL98 and NEMA KS1 standards and are UL listed.