The Square D™ by Schneider Electric brand General Duty Safety Switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. General Duty Safety Switch are designed for commercial, institutional, industrial & manufacturing facilities. Electrical interlocks for Series F,100.200A, general duty safety switches, are available in kit form for field installation. Each kit contains instructions for proper field mounting. A pivot arm operates from switch mechanism, breaking the control circuit before the main switch blades break. Switches with electrical interlocks installed are UL Listed. For factory-installed electrical interlocks add EI (for one contact) or EI2 (for two contacts) suffix to catalog number. This Electric Interlock Kit for Safety Switches are for safety switch with aUL listed certification and a switch function of SPDT Prop 65: WARNING: This product can expose you to chemicals including: Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov - Compatible Products: 82254N; 82254NW; 82344DS; 82344N; 82344NRB; D223N; D223NRB; D224N; D224NRB; D322NRB; D323N; D323NRB; D324N; D324NRB; DT100SG; DT321RB; DT322RB; DT323; DT323RB; DT361; DT361RB; DT362; DT362RB; DTU222; DTU223RB; DTU224NRB; DTU321; DTU322; DTU323; DTU323RB; DTU324NRB; DTU361; DTU362; DTU362AWK; DTU362DS; DTU365; DTU462; DTU463DS; DU323; DU323RB; DU324; DU324RB; H361AWA; H361AWC; H362AWA; H362AWAVW; H362AWC; H362AWCVW; H362AWH; H362DSWA; H363AWA; H363AWC; H363DF; H365AWK; H366; H366AWK; H461; H464AWK; H663AWK; H664AWK; H82344; HU362AWC; HU362AWH; HU363AWC; HU365AWK; HU367AWK; HU461AWK; HU461DS; HU462AWK; HU463; HU464AWK; HU661AWK; HU661AWKEI; HU662AWK; HU663AWK; HU664AWK