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. F Series safety switches provide significantly higher levels of mechanical endurance than NEMA KS-1 or UL98 standards require. All heavy duty safety switches feature a quick-make, quick-break operating mechanism, a dual cover interlock and a color-coded indicator handle. This Single Throw Safety Switch has a rated current of 400A and is UL listed with a NEMA 4X rating of protection. This 3-pole switch has operational voltage ratings of 600VAC/DC. The enclosure is made of stainless steel. This fusible disconnect has a short circuit current rating of 10kA to 200kA. This safety switch accepts H,J,K,L,R fuse types and is surface mounted. This switch comes with an 18 months warranty.