WLock QO Generator Interlock Kit

Safely switch your home from utility power to generator power with the Westinghouse WLock QO Generator Interlock Kit, made for compatible Square D QO load centers. The kit is for “G” and “S” Series NEMA 1 indoor and “G” and “S1” Series NEMA 3R outdoor QO load centers and interlocks QO2 two-pole 150–225A main circuit breakers with QO two-pole 15–125A breakers for generator connection. Unlike a manual transfer switch that limits power to pre-selected circuits, the WLock QO 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 30A or 50A 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 plate, retaining bracket that holds the generator breaker in place, drill template, mounting hardware, 3/16 in. and 1/16 in. drill bits, thread sealant, and manual. Verify your panel series and breaker configuration before ordering. Installation must be done by a qualified electrician in accordance with local codes and regulations. Not affiliated with Schneider Electric. 

• MADE FOR SQUARE D QO PANELS: The Westinghouse WLock QO Interlock Kit fits compatible “G” and “S” Series NEMA 1 indoor and “G” and “S1” Series NEMA 3R outdoor QO load centers; For use with QO2 two-pole main breakers (150–225A) and QO two-pole breakers (15–125A) for generator connection 
• FLEXIBLE, COST-EFFECTIVE CONTROL: Manual transfer switches limit generator power to pre-selected circuits and cost more to buy and install. Interlock kits let you directly manage your breaker panel, so you can choose which circuits to power; They also eliminate the hassle of running extension cords 
• PREVENTS DANGEROUS BACKFEED: Physically prevents the utility main breaker and generator breaker from being switched on at the same time, so generator power can never feed back onto utility lines and endanger line workers or damage your equipment
• ELECTRICIAN-READY: To be installed by an electrician per local codes and regulations; Includes a template and matching drill bits; Verify panel series and breaker configuration before ordering
• COMPLETE INSTALLATION KIT: Includes 1 x interlock plate, 1 x retaining bracket, 1 x drill template, mounting nuts and bolts, 1 x 3/16 in. and 1 x 1/16 in. drill bits, 1 x thread sealant and owner’s manual; Straightforward install, no extra parts needed 

• PREMIUM DURABILITY: Made from corrosion-resistant metal which provides long-lasting performance and allows for use with both indoor and outdoor rated enclosures