Description
Product Overview
The QYZZRS Generator Interlock Kit is engineered for General Electric vertical main 150 or 200 amp circuit breaker panels, requiring an interval space of 2.5 to 3.5 inches between the main and branch breakers. This manual transfer switch device ensures safe backfeeding of power from a portable generator to your home’s electrical distribution panel, preventing simultaneous activation of utility and generator supplies. Constructed from durable materials, the kit includes an interlock plate, screws, drill bit, instruction bulletin, generator start-up procedure labels, reminder labels, and zip ties for a complete installation. Model QY-200VL2 measures 6.7 x 2.5 x 0.11 inches and weighs 7.05 ounces, designed for reliability and compliance with safety standards.

Usage
This interlock kit is ideal for residential settings where homeowners need backup power during electrical outages, such as storms or grid failures. It is commonly used with portable generators to supply essential circuits like lighting, refrigeration, and heating systems. The target audience includes DIY enthusiasts and electricians who prioritize safety and want to avoid the risks of backfeeding power into utility lines. Installation is straightforward with the provided hardware, making it suitable for emergency preparedness in homes, cabins, and small businesses.
Why Choose Us
QYZZRS stands out with a hassle-free replacement policy—if the product fails, simply email for a new one at no extra cost. The kit is designed with precision to align perfectly with GE panels, reducing installation errors and ensuring reliable operation. Unlike generic alternatives, it includes comprehensive labels and instructions for clear safety reminders and proper generator start-up procedures. Our focus on quality materials and user-friendly design means you get a durable, compliant product that enhances home safety without complex setups.
Key Features
- Prevents simultaneous utility and generator power activation for enhanced safety
- Compatible with General Electric vertical main 150 or 200 amp breakers
- Includes all necessary installation components like screws, drill bit, and labels
- Easy alignment and simulation during setup to minimize errors
- Backed by a reliable replacement guarantee for peace of mind
FAQ
What panels is this interlock kit compatible with?
It is designed for General Electric vertical main circuit breaker panels with 150 or 200 amp breakers and requires 2.5 to 3.5 inches of spacing between the main and branch breakers.
How do I install the interlock kit correctly?
Attach the screws to the interlock plate first and simulate the test to align the installation position, as per the included instruction bulletin, to avoid errors during final setup.
Does the kit include everything needed for installation?
Yes, the package contains an interlock plate, screws, drill bit, instruction bulletin, generator start-up labels, reminder labels, and zip ties for a complete installation.
What is the warranty or support for this product?
If the product fails, you can email QYZZRS for a hassle-free replacement, ensuring you receive a new unit without additional charges.
Why is preventing simultaneous power sources important?
It avoids backfeeding, which can be dangerous to utility workers and damage electrical systems, making the interlock kit essential for safe generator use.






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