【Compatible Models】Generator Interlock Kit Compatible with ITE, Gould, Murray, Siemens, and Thomas and Betts, 150 or 200 amp panels 【Interval Space Required】1 1/4 Inch Spacing between main and generator 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 contact us back if our product ever fails you and we'll mail you a new original replacement. Generator Interlock Kit Compatible with ITE, Gould, Murray, Siemens, and Thomas and Betts, 150 or 200 amp panels