QYZZRS Generator Interlock Kit for GE Vertical Main Panels 150/200A & Siemens 200A – 2 1/4 Inch Spacing

Overview

Meet the QYZZRS Generator Interlock Kit, a purpose-built accessory that enables safe back feeding from a portable generator to your home's distribution panel. It helps coordinate the main and branch breakers so only one power source is active at a time, reducing risk during outages while keeping the electrical workflow straightforward.

Designed for GE General Electric Vertical Main panels rated 150A or 200A, and for Siemens 200A panels. Note that it is not compatible with Siemens 150A panels. This compatibility broadens your retrofit options without altering the panel enclosure.

Compatibility and Spacing

• Compatible with GE vertical main 150A and 200A panels.
• Also compatible with Siemens 200A panels.
• Not applicable to Siemens 150A panels.

What’s included

• 1 × Interlock plate
• 3 × Screws kit
• 1 × Drill Bit
• 1 × Instruction Bulletin
• 2 × Generator Start-Up Procedure Label
• 8 × Remind Label
• 2 × Zip Ties

Installation tips

Before installing, attach the screws to the interlock kit first. This allows you to simulate testing and precisely align the position, helping avoid mounting errors that could affect operation.

Use the included drill bit and follow the instruction bulletin for a clean, secure fit. If you are unsure, consult a licensed electrician before making any changes to the distribution panel.

Value and use cases

• The manual transfer switch device enables portable generator power to flow safely back to the distribution panel when needed.
• Designed to prevent utility and generator supplies from being ON at the same time, reducing the risk of backfeed to utility lines.
• Compact accessory kit that ships with everything needed for a straightforward install, minimizing downtime during outages.

While not a guarantee of results, this interlock kit presents a practical option for homeowners seeking a safer, code-friendly method to manage generator power alongside a home electrical system.

Visual cues include a solid interlock plate, clearly labeled components, and sturdy screws that feel secure when tightened with a standard screwdriver. The included labels offer clear reminders at a glance, supporting safe operation during power outages.

In everyday use, trusty packaging arrives neatly organized, helping technicians or DIY homeowners prepare for a secure installation. The kit's compact footprint fits the space around many main breaker assemblies, letting you keep the panel area tidy.