Solid-State Switching Devices for Resistive Loads Solid-State Contactors 3RF23 solid-state contactors, single-phase Type current 70 A Screw terminal Ring terminal lug connection 3RF23 70-1.... 3RF23 70-3.... ) ) Type current 88 A Screw terminal Ring terminal lug connection 3RF23 90-1.... 3RF23 90-3.... ) ) Terminal cover ■ Schematics 3RF29 00-3PA88 Version DC control supply voltage Version AC control supply voltage ) ) ) 34 Siemens · 2009