Square D (Schneider Electric) LAD4RC3U TeSys D Coil Suppressor Module. Schneider Electric TeSys Suppressor Module, Type D RC Circuit, 110 to 240 VAC, For Use With: LC1D40A-D65A, LC1DT60A-DT80A Contactors. Additional Description: SQD -LAD4RC3U D40A to D65A RC 110-240V Suppressor. Catalog Description: D40A to D65A RC 110-240V Suppressor.