DESCRIPTION HAGER SFT225 | CHANGEOVER SWITCH 2 POLE 25 AMP SFT225 changeover 25 amp switch. What is a change over switch? A changeover switch switches a house's electricity supply from the general grid power supply to a "generator system" in case of power outage. The changeover switch connects to the main power grid, generator or alternate source and the house wiring. When you switch or "Change over" all the power on that circuit changes from either Grid or Generator. (not allowing it to flow back into each other (Grid and generator)) Features: Rated current 25 A 240V Rated operational AC voltage 230 V Frequency 50/60 Hz type of connection with screw Connection cross-sect. rigid cable 16mm² Connection cross-sect. flexible cable 10mm² Electrical durability at nominal load in AC21in operating cycles 2500 Operating temperature -20 to 50 °C Storage temperature -40 to 80 °C Protection index IP 20 Number of modules 2 (SFT225)