This is a 4-pole single-pole double-throw (SPST) switch with a 45-degree rotary knob. It is rated for 10A at 440VAC and 220VDC, with a power capacity of up to 745.7 VA. Designed for panel mounting, it features screw terminals and a lifespan of approximately 500,000 cycles. The switch provides either Normally Open (N.O.) or Normally Closed (N.C.) contacts, suitable for various control applications.