The Square D™ by Schneider Electric brand 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 Residential, light commercial, and industrial installations. 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 600A double throw safety switches. Terminal data for this assembly is 250-500 kcmil aluminum or copper. Safety switches are tested per UL98 and NEMA KS1 standards and are UL listed.