SF Modular Changeover Switchhas pass the ISO9001:2000.superior quality ,most competitive prICE SF Modular Changeover SwitchSpecificationsNumber of Poles1P, 2P, 3P, 4PRated Current (A)10, 16, 20, 25, 32, 40, 50, 63, 80, 100Rated Voltage (V)230/400Rated Frequency50/60Hz SF Modular Change over Switch