Generator Interlock Kit Compatible with Square D QO

Generator interlock kits are available for Square D QO and Homeline 150 and 200 amp panels. | Interval Space Required1 3/8 Inch Spacing between main and generator breaker. | Installation Note: Before installing the interlocking kit, Attach the screws to the interlock kit first. Let's simulate the use of the test, so that we can better align the installation position, to avoid errors in the installation position, resulting in failure to use. | Safe usethe manual transfer switch device allow portable generator safe back feeding power supply to distribution panel and home line. Prevent utility and generator supplies from being ON at the same time. Aren't putting electrician in dangerous and damage electric devices during power outages. | PackageOur Generator Interlock kit include 1 Interlock plate, 3 Screws kit, 1 Drill Bit, 1 Instruction Bulletin, 2 Generator Start-Up Procedure Label, 8 Remind Label, 2 Zip Ties.