[Compatible Models]Generator Interlock Kit Compatible with General Electric GE 150 or 200 amp Main Breaker [Interval Space Required]1 1/4 Inch Spacing Between Main and Branch Breaker [Safety Generator Interlock kit]This kit avoids the inconveniences that an unexpected power outage can cause. It is used to direct generator power to any circuit within your home safely. It is truly a great way to safely connect up a generator while assuring that you have access to all of your home electrical appliances. [Package Contents]Our Generator Interlock kit include 1 Interlock plate, 3 Shoulder Screws, 3 Hex Nuts, 1 Generator Start-Up Procedure Label, 5 Remind Label, 2 Zip Ties, 1 Instruction Bulletin, 1 Drill Bit [Easy to Install]The generator interlock kit offers a 3/16 drill bit, sturdy steel that goes through breaker panel easily. Easy to install, no need extra control box or wiring. Simply back if our product ever fails you and we'll mail you a new original replacement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.