The product is used in solar system,the voltage can reach 1500VDC;the mechanism of the product move fast, breaking the contact quickly;and the category is DC21B. The switch has small volume,short arc extinguishing time,multiple contacts operating at the same time and other advantages.It has 1000VDC and 1200VDC specifications.The 1000VDC products can be used in solar system with rated voltage less than 1000 and below,rated current less than 32A;The 1200VDC products can be used in photovoltaic system with rated voltage 1200v or below, rated current 26A or below. The isolator switch have 2P,4P,6P,8P four specification, 2P can be used in a set of system loops;4P can be used in two sets of system loops,6P can be used in 3 sets of system loops,8P can be used in 4 sets of system loops.