SZHSYJY Generator Interlock Kit for ITE/Murray/Gould/Siemens 150A–200A Panels

Safe, code-compliant generator interlock for home panels

Meet the SZHSYJY Generator Interlock Kit — a practical, install-ready solution that helps you manage generator power without backfeeding your main panel. Designed to work with ITE, Murray, Gould, Thomas & Betts, and Siemens 150A panels, this kit supports 150A and 200A configurations with a precise, 1 1/4 inch spacing between the main breaker and the generator breaker.

Before you buy, confirm your panel model and the required spacing to ensure a proper fit. The kit is built to align with common panel layouts and comes with everything you need to install with confidence.

How it works in real life

When the grid goes down, you can selectively feed essential circuits using the generator without the risk of energizing the utility line. The interlock directs power safely from the generator into your panel while keeping the main breaker from closing at the same time. This approach can help you maintain control and reduce the chances of accidental backfeed into the utility.

Think of it as a practical upgrade for weekend bakers, remote workers, or households that want to keep essential lighting, outlets, and devices running during outages. It also helps you plan power usage more deliberately, which can lead to more predictable energy management.

Key benefits you can expect

• Compatibility with multiple panel brands and 150A/200A configurations
• Clear spacing requirement of 1 1/4 inch between main and generator breakers
• Prevents simultaneous ON states, reducing backfeed risk
• Directs generator power to designated circuits for controlled use
• Designed for straightforward installation with common tools

What’s included in the package

Everything you need for an orderly install arrives in the box:

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

Installation at a glance

The interlock ensures the main breaker cannot be ON while the generator breaker is ON. This simple mechanical safeguard makes it easier to connect a generator to your panel with reduced risk of accidental energizing.

Notes to consider: verify your model and the 1 1/4 inch spacing before purchasing; professional installation is recommended if you are unfamiliar with electrical panels.

Why choose SZHSYJY

Quality materials, a compact, clear design, and practical labeling help guide you through the process. This interlock kit focuses on safe integration for common panel setups, offering a reliable option to expand how you manage power during outages.