Model "HMP-L"  Interlock Kit fits Siemens, Murray, Crouse  and other panels with a top LEFT mounted "humpback" main breaker.
 
The generator breaker will mount directly under the main breaker. PLEASE NOTE - YOUR MAIN BREAKER MUST HAVE THE ON POSITION TO THE RIGHT AS SHOWN.
 
These are very high quality kits and provide everything required for the installation including all placards, a correct size drill bit, name brand thread locking compound, all hardware  and clear installation instructions.
 
 All GenSafety Generator Interlock Kits are proudly made in the USA!