How to Install a Generator Interlock Device
Just purchased a generator and wondering how to keep it protected? A generator interlock device is a solid alternative to installing a generator transfer switch and can be a great tool when it comes to keeping your devices and home safe. It functions by keeping the generator’s power circuit and the main electrical circuit from being used at the same time. This ensures that power isn’t backfed into the main lines, keeping electrical workers protected.
While you can install this device on your own, there are several challenges that may arise and we always recommend hiring a qualified electrician to get the job done properly—and safely. Learn more about installing a generator interlock device and how Lenhart Electric can help.
What is a Generator Interlock Device?
A generator interlock device, or GID, is an advanced safety feature that can be used with your generator. By preventing the use of the main breaker and generator breaker at the same time, it provides backfeed protection, as your home’s generator will no longer be connected to the grid when it’s in use. Why is backfeeding so dangerous? Backfeeding occurs when power from a generator flows back into the electrical grid instead of staying contained within your home’s electrical system. If this occurs, it has the potential to electrocute workers and can also damage your electrical system—all things you’ll certainly want to avoid.
Why You Should Consider Installing a Generator Interlock Device
Ready to give your generator game a boost? A generator interlock device is something both homeowners and builders working on new construction sites should consider. In addition to the safety it brings for both your home’s electrical system and utility workers, a generator interlock device is relatively inexpensive, easy to operate, and quite reliable. This makes it an ideal solution for safely powering all your appliances during an outage—without splurging for an often costly and complex transfer switch.
How to Install a Generator Interlock Device: 5 Steps
Step 1: Have the Necessary Tools
Want to know how generator interlock installation is done? First things first: grab all the necessary tools before diving in. Our experts likely have an interlock kit in tow, along with a screwdriver, wrench, drill, and voltage tester. However, additional tools may be needed depending on the model of your interlock device, so it’s important to know ahead of time. Lenhart Tip: Safety gloves and glasses are additional safety measures worth taking.
Step 2: Turn Off the Main Power Supply
Once we’re ready to get started, it’s important to shut off the main electrical panel breaker before beginning the actual installation process. Here’s where the voltage tester comes in handy as it’s used to double check that the panel is off—and safe. If the breaker is not shut off, there’s risk of an electrical shock.
Step 3: Install the Interlock Kit onto the Breaker Panel
All safe and ready to go? First, the panel cover is removed with a screwdriver. Next, we’ll locate the main breaker and breaker slot. Then, the interlock device is attached to the electrical panel, ensuring it aligns with the main breaker and generator breaker. The kit should link the main breaker and generator breaker slot with a bracket or plate, but this step can be tricky as it requires precision to fit the interlock correctly. Note: the manufacturer’s instruction manual is a key resource for additional details.
Step 4: Install the Generator Breaker and Connect to the Panel
Now, it’s time to insert the generator breaker into the panel, carefully aligning it with and wiring it to the interlock device. We’ll tighten the screws as needed, making sure that the interlock can move freely and is operating properly. The goal is to make sure the main breaker and generator breaker can’t be switched on at the same time, keeping you safe from electrical problems. Once everything is situated, the panel cover is reattached and screwed back in. Time and care is taken here, as working in tight spaces or modifying the breaker panel for proper installation can sometimes create additional difficulty.
Step 5: Test the System
To test the system, the main breaker is turned off and the generator breaker is turned on. You can test the interlock by attempting to turn on both breakers at the same time. If you can’t, that means the installation was completed properly.
A malfunctioning system can be hazardous, so testing is a step that should never be skipped.
Common Challenges When Installing a Generator Interlock Device
Working with electrical panels can be tricky, as it can sometimes be difficult to correctly fit the interlock device and deal with any potential wiring issues that may arise. Improper installation can lead to electrical hazards and provide insufficient backfeed protection.
In addition, you need an interlock device that is compatible with your panel, so this is something you’ll want to check for ahead of time.
Why Hire a Residential Electrician for the Job?
When in doubt, hiring a licensed residential electrician for residential generator installation is recommended, as this will help ensure the device is installed safely and up to code. Trained electricians are ready to handle complex wiring and electrical systems, making this a more reliable choice than the DIY method. They’ll also be able to help you avoid warranty violations and potential insurance claims that sometimes come with improper installation.
How Our Florida Residential Electricians Can Help
Learning how to install a generator interlock device can empower you and make sure your backup power system is running smoothly. Hiring an experienced electrician to do the job can save you time, avoiding any potential issues down the line. At Lenhart Electric, we’re proud to offer residential electrical services and expertise when it comes to installing generator interlock devices.
Ready for generator interlock installation or other electrical panel upgrades? We serve Central Florida, including the cities of Wildwood, Ocala, and Leesburg. Contact us today for a quote!