The Model SD400L kit is designed for a 400 Amp Square D Panel as shown with approx. 8" from the bottom of the lower main breaker panel cover knockout edge to the top of the generator breaker panel cover knockout edge.
 
The generator breaker will be located in the top right position of the branch breaker stack.
 
Our kits come complete with everything necessary to complete the interlock installation including all hardware, the correct size drill bit, name brand thread lock compound, a full placard set, and clear installation instructions.
 
This is a prototype kit, so it is not blue anodized like our production kits, but it is precision CNC machined from solid billet aluminum and is of very high quality.
 
All of our kits are Made in the USA!