The PV2S640SS is an SPST momentary pushbutton switch featuring a domed actuator with polished stainless steel finish, designed for panel-mount applications. It is rated for 2A at 48VDC with a maximum contact resistance of 50mO at 1A 12VDC, and offers an electric life of 200,000 make-and-break cycles. The switch features IP65 ingress protection, operates over a temperature range of -20°C to 55°C, and includes a 1.5mm travel distance with dielectric strength of 2,000 VAC minimum for 1 minute. With its M16x1.0 threaded body, polished stainless steel construction, and RoHS compliance, this switch is ideal for industrial control panels, instrumentation, and harsh environment applications requiring reliable momentary switching and corrosion resistance.