Schneider Electric's Square D heavy duty safety switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. All heavy duty safety switches feature a quick-make, quick-break operating mechanism, a dual cover interlock, and a color coded indicator handle. They also come with many field installable or factory installed accessories. These switches come on fusible or non-fusible configurations and my be padlocked in the ON-OFF positions. This safety switch accessory is a field-installed standard neutral kit for 200-225A rated heavy duty safety switches. Terminal data for this assembly is (4) 6–350 aluminum or copper. Safety switches are tested per UL98 and NEMA KS1 standards and are UL listed.