Transfer Switch Installation: Your Guide to Safe & Reliable Backup Power
Losing power can bring your home or business to a standstill. A transfer switch is the essential component that allows you to safely connect a backup generator to your electrical system, ensuring continuous power when the grid goes down. At ProLectric, LLC, we specialize in professional transfer switch installations, providing you with peace of mind and reliable backup power.
Why is a Transfer Switch Crucial?
A transfer switch acts as a vital safety barrier, preventing a dangerous condition known as "backfeeding." Backfeeding occurs when electricity from your generator flows back into the utility grid, posing a severe electrocution risk to utility workers who may be working on the lines. It also protects your own electrical system from damage.

Understanding Transfer Switches: Manual vs. Automatic
There are two primary types of transfer switches, each designed to meet different needs:
Manual Transfer Switches: These require you to manually switch your power source from the utility to your generator once the generator is running. They are generally more affordable and are a popular choice for homeowners using portable generators.
Automatic Transfer Switches (ATS): For ultimate convenience and seamless power transition, an ATS is the answer. It automatically detects a power outage, starts your generator, and switches your electrical load to generator power. When utility power is restored, the ATS automatically switches back and shuts down the generator. ATS units are typically used with permanent standby generators.
Key Considerations Before Installation
Before installing a transfer switch, it's important to consider a few critical factors to ensure you have the right solution for your needs. ProLectric, LLC can help you navigate these decisions.
Determine Your Power Needs
Essential Circuits: Identify which circuits and appliances you absolutely need powered during an outage. Think about your refrigerator, furnace, well pump, lights, and charging outlets.
Wattage Calculation: We'll help you calculate the total running wattage of these essential circuits, including the "startup wattage" (surge wattage) for motor-driven appliances, which can be significantly higher. This ensures your generator and transfer switch are correctly sized.
Generator Sizing: Your generator's output must be able to handle the combined load. We'll make sure your setup is perfectly matched.
Choose the Right Transfer Switch
Manual vs. Automatic: We'll help you decide which type best suits your budget and power needs.
Amperage Rating: The transfer switch must be rated to handle the amperage of your chosen circuits and be compatible with your generator's output. Common ratings include 30-amp, 50-amp, and higher for whole-house systems.
Service Entrance Rated (SE Rated): Some transfer switches are "service entrance rated," meaning they can be installed directly where utility power enters your property. We'll determine the best type for your specific setup.
Location, Location, Location
Proximity to Main Panel: Transfer switches are typically installed right next to your main electrical service panel for efficient wiring.
Accessibility: We'll ensure the location allows for easy access for operation and maintenance.
Outdoor vs. Indoor: If installed outdoors, the transfer switch and generator inlet box must be housed in NEMA 3R or higher rated enclosures to protect against weather.
Local Codes and Permits
Permits: Most cities require an electrical permit and inspection for transfer switch installations. ProLectric, LLC handles all necessary permits to ensure your installation is compliant.
Licensed Electrician: Many areas mandate that transfer switch installations be performed by a licensed electrician due to the inherent safety risks and complexity. Our licensed professionals ensure compliance and safety every step of the way.
Safety is Our Top Priority: Why Hire a Licensed Electrician
- Electrical work is complex and dangerous, especially when dealing with high-voltage systems. At ProLectric, LLC, we cannot stress this enough:
- Always Hire a Licensed Electrician: Our qualified electricians ensure your transfer switch installation is safe, up to code, and properly sized for your specific needs.
- Permits and Inspections: We obtain all necessary permits and ensure your installation passes all required inspections.
- Proper Generator Placement: We'll advise on safe generator placement to prevent carbon monoxide buildup, emphasizing that generators should never be operated indoors or in enclosed spaces.
- Regular Maintenance: We can provide guidance on periodic testing and maintenance for your transfer switch and generator.
- Avoid Overloading: We'll help you understand your generator's wattage capacity to prevent damage to the generator and connected appliances.
For a reliable and secure backup power solution for your home or business, trust the experts at ProLectric, LLC.
Contact us today for your FREE estimate!