This is a Single Pole, Single Throw (SPST) rotary appliance switch. It is a "maintained" action switch, meaning it stays in the "On" or "Off" position until turned again, and is primarily used in small household appliances and industrial equipment.
Technical Specifications Circuit Function: SPST (On-Off).
Current Rating: 3A at 125VAC or 1.5A at 250VAC.
Actuator: White plastic rotary stem.
Termination: Two 6-inch (152mm) wire leads.
Mounting: Requires a 0.500-inch (1/2") circular hole; includes a hex nut, lockring, and washer.
Dielectric Strength: 1000V RMS