Understand Your Options: Interlock Kit vs Transfer Switch

 

What Is an Interlock Kit?

An interlock kit is a device designed to allow a generator to safely connect to your home’s electrical panel during a power outage. It works by physically preventing the main breaker and the generator breaker from being on simultaneously, which helps avoid dangerous back-feeding into the power grid. This simple yet effective mechanism ensures that your generator only provides power to breakers in your home, protecting your household and utility workers.

 

Why Choose an Interlock Kit?

An interlock kit is an ideal solution for those who are looking to safely connect their home to a generator during a power outage. Typically, homeowners and businesses trust interlock kits to keep the power on for what matters most during an outage. Several of the main differences between an interlock kit vs a transfer switch? An interlock kit is a cost-effective, simple, and easy-to-use solution.

• Cost-Effective Solution

Interlock kits are generally more affordable than transfer switches. This makes them a popular choice for those seeking a budget-friendly option for backup power. Especially in commercial or high-amperage scenarios where manual and automatic transfer switches can be the more expensive solution.

• Simplicity and Space-Saving

Interlock kits are installed directly onto your existing electrical panel, limiting modification to the pre-existing electrical setup. Installation requires no additional space or modifications. Their straightforward design often leads to quicker installations and savings
on materials.

• Ease of Use

An interlock kit gives you direct control over which circuits your generator powers. If your generator can handle the load, you can even power all your breakers, making it easy to maintain full functionality during a power outage with just a few switch flips.

• Custom-Made Kit

We create custom-made interlock kits by modifying existing designs to fit specific panel configurations and generator setups, ensuring compatibility with a variety of electrical panels. Our kits are tailored for both residential and commercial/industrial
applications, covering a range of amperages. Additionally, we interlock multiple components, including AC units, EV chargers, and solar breakers, providing comprehensive solutions for seamless power management.

What Is a Transfer Switch?

A transfer switch for backup power is a device that switches your home’s power from the utility grid to a generator during an outage. It prevents power from going back into the grid, protecting utility workers and your system. Transfer switches can be manual or automatic, with automatic ones switching the power on their own when an outage happens and back when power is restored

Why Choose an Automatic or Manual Transfer Switch?

There are a variety of uses for transfer switches by both commercial and personal properties. Several of the main differences between a transfer switch vs an interlock kit? Transfer switches tend to be more expensive yet can be fully automated. We’ve compiled a list of the most
common benefits of choosing a transfer switch over an interlock kit.

• Automatic Operation

Transfer switches offer the convenience of automatic operation. They detect power outages and switch to the generator without your input. Normally, these will cost between $600 to $2000 for residential use.

• Expansive Property

A transfer switch is ideal for a larger or second house because it provides a seamless transition between utility power and a backup generator. Its capacity to handle higher power loads makes it suitable for maintaining the electrical demands of a big home. This is usually
needed for houses 4,000+ square feet.

• Control

Manual transfer switches give you direct control over when to switch power sources, allowing you to manage your backup power use according to your needs and preferences. All breakers are pre-selected so that you do not have to calculate the load on your generator. This is nice because you do not have to worry about overloading the generator but you are limited to what items you can use.

• Compliance with Codes

Some local building codes and regulations require the use of transfer switches for safe and compliant generator connections, helping you meet legal requirements. While all products will achieve the same outcome, this is a more robust option for customers.

• Maintenance Needs

Transfer switches require regular maintenance and testing to ensure they function correctly during an outage. This adds an ongoing fiscal responsibility to keep the system in good working order.

• Accessibility

You’re not limited to a preselected number of emergency breakers with an interlock kit. You can manage all of your breakers as emergency breakers or cycle them depending on the operating capabilities associated with your backup power system.

Choosing the Right Solution for You

Both interlock kits and transfer switches have their merits, and the right choice depends on your specific needs, budget, and preferences. Here’s a quick comparison to help you decide.

 

• Budget: If cost is a primary concern, an interlock kit offers a more economical solution.
• Automation: If you prefer an automatic system with minimal manual intervention, a transfer switch might be the better choice.
• Installation: For a simpler, cost-efficient more space-efficient installation, an interlock kit integrates directly with your existing panel. Also, not upkeep is required once the kit is installed.