Instruction Leaflet IL2C13761H11 Effective March 2020Supersedes January 2015Installation instructions for KirkKey Interlock Kit (2C12891G21) inMagnum® low-voltage circuit breakersWARNING(1) ONLY QUALIFIED ELECTRICAL PERSONNELSHOULD BE PERMITTED TO WORK ON THEEQUIPMENT.(2) DO NOT ATTEMPT TO INSTALL OR PERFORMMAINTENANCE ON THE EQUIPMENT WHILEENERGIZED. ALWAYS VERIFY THAT NO VOLTAGEIS PRESENT BEFORE PROCEEDING.(3) ALWAYS DE-ENERGIZE PRIMARY ANDSECONDARY CIRCUITS BEFORE REMOVINGCIRCUIT BREAKER.FAILURE TO FOLLOW THESE STEPS FOR ALLPROCEDURES DESCRIBED IN THIS INSTRUCTIONLEAFLET COULD RESULT IN DEATH, BODILY INJURY,OR PROPERTY DAMAGE.WARNINGTHE INSTRUCTIONS CONTAINED IN THIS IL AND ONPRODUCT LABELS HAVE TO BE FOLLOWED. OBSERVETHE FIVE SAFETY RULES:– DISCONNECTING– ENSURE THAT DEVICES CANNOT BEACCIDENTALLY RESTARTED– VERIFY ISOLATION FROM THE SUPPLY– EARTHING AND SHORT-CIRCUITING– COVERING OR PROVIDING BARRIERS TOADJACENT LIVE PARTSDISCONNECT THE EQUIPMENT FROM THE SUPPLY.USE ONLY AUTHORIZED SPARE PARTS IN THEREPAIR OF THE EQUIPMENT. THE SPECIFIEDMAINTENANCE INTERVALS AS WELL AS THEINSTRUCTIONS FOR REPAIR AND EXCHANGE MUSTBE STRICTLY ADHERED TO PREVENT INJURY TOPERSONNEL AND DAMAGE TO THE SWITCHBOARD.