Electronic 7-Day. Time Switch. Installation and User Instructions. MODEL ET1700 Series. With Battery. Carryover. Front View. Rear View.OWNER/INSTALLER INSTRUCTION MANUAL. ATTENTION: READ CAREFULLY BEFORE ATTEMPTING TO INSTALL YOUR INTERMATIC CONTACT CONFIGURATION: SPST model ET101C. Intermatic ET173C Time Switches Other manual free download. Manual for Intermatic | Other | ET173C Time Switches free download. View and Download Intermatic ET171C owner/installer instruction manual online. ET170 SERIES Electronic 7 - Day MOVS) across terminals 3/4 (model ET173C. Shop for intermatic model ET173C from Platt Electric Supply. Mfr: Intermatic. 24-Hour Timer Mechanism, SPST, 125V, 40A, 2HP, Manual Override. Show More.