Safely switch your home from utility power to generator power with the Westinghouse WLock E Generator Interlock Kit, made for compatible Eaton Type BR NEMA 1 indoor load centers with 100 A or 125 A BR main breakers and designed to use a 2-pole BR breaker sized appropriately for the generator connection. Unlike a manual transfer switch that limits power to pre-selected circuits, the WLock E lets you manage your breaker panel to choose which circuits to power based on your generator's available capacity. It also prevents the utility main breaker and generator breaker from being switched ON at the same time, helping protect against dangerous backfeed. Compatible with most generator brands using 30 A or 50 A connections, it's a cost-saving alternative to a separate transfer switch and eliminates the hassle of running extension cords through your home. The corrosion-resistant metal interlock kit includes an interlock bracket, mounting hardware, 3/16 in. drill bit, thread sealant, zip ties and manual. Verify your panel model before ordering. Professional installation is recommended for code compliance. Not affiliated with Schneider Electric.