This is a double-pole, single-throw (DPST) selector switch with a 90-degree rotary knob. It is rated for 10A at 440VAC and 220VDC, with a power capacity of 745.7VA. The switch features screw terminals for secure wiring connections and is designed for panel mounting. It offers a make/break function with normally open and normally closed contacts, suitable for controlling electrical circuits with high reliability and durability, rated for up to 500,000 operation cycles.