Model SMR3N fits Siemens and Murray Panels having a main breaker with the "ON" and "OFF" positions  opposite of standard and also where there is not enough room for our model SMR3 Interlock because the panel wall is too close to the breaker stack. You must arrange the branch breakers to create a single blank position between the main breaker and the generator breaker.
 
This kit is not yet a full production run kit, so it is not our signature blue anodized color. It is precision CNC machined from solid aluminum billet however, and looks very professional and fits very well. The kit includes everything necessary to complete the installation including all hardware, the correct size drill bit, name brand thread lock compound, a full warning placard set, and clear installation instructions.
 
All of our interlock kits are proudly made in the USA!