This is a SPDT (Single Pole Double Throw) switch with a 90-degree rotary knob designed for panel mounting. It features normally open (N.O.) and normally closed (N.C.) contacts, rated for 10A at 440VAC or 220VDC, with a power rating of 745.7VA. The switch uses screw terminals for secure wiring and is rated for up to 500,000 switching cycles.