Luckily, interlock kits are legal in most states. You can only power one panel from the generator, but that's all you're trying to do. Choose where you want to direct generator power to any circuit within the home. Placing it is easy; there are four dimpled spots on the panel around the main breaker that is where you will dig the holes for supporting the device. The interlock kits you install should have the UL listing otherwise they may be objected upon by electrical inspectors. But you should always check the devices legality in your area before purchasing and installing one. Add To Cart. Generator interlock kits are legal in most parts of the US if they are approved by the UL under their standard UL 67. They should explicitly mention that purchasing kits from them is legal. How does this work with conduit? They have great customer service. We create high-quality-stainless-steel, mechanical Interlocking devices to work for any electrical panel. In this blog, Read More What Size Generator For Travel Trailer?Continue, Generators can be a lifesaver when the power goes out, but how do you know What Size Generator to Run 5 Ton Ac Unit? Try to remain abreast of changes in the local code. 7 min read 2 Comments,