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Product Description

Interlock kit is a replacement for ITE, Siemens, Gould and Murray 150 or 200 main circuit breakers.


Only qualified professionals are allowed to operate on the distribution box!
Amateurs should never open the distribution box.
All electrical equipment should be installed and maintained by professionals.
Main Breaker Interlock Switch for Generator
Solve the trouble of power outage
This generator interlock kit has 1 1/4" spacing between the main and generator breakers to prevent the utility and generator from being turned on at the same time.
This generator lockouts can help you solve the problems caused by sudden power failure in extreme weather.
The breaker interlock effectively prevents generator power and utility power from being turned on at the same time. Thus ensuring the safety of your electricity.
- Economical and durable
- Easy to install
- Perfect fit

Portable Generator Interlock Kit
Turn left
Main breaker open, generator breaker closed, generator breaker cannot be opened.
Turn right
Generator breaker opens, main breaker closes, main breaker cannot be opened.

Installation Steps:
Step 1, Turn off the power.
Step 2, Place the base plate according to the instructions, then mark the holes on the base plate with a pen.
Step 3, Remove the panel cover and use a drill bit to drill three marked holes in the panel cover.
Step 4, Install the base plate and top plate to the front cover of the breaker panel by inserting screws from the back of the cover. (Make sure the top plate has enough space to pull freely)
Step 5, Check for proper functioning and attach a warning sign.

Package includes:
1 x top and bottom interlocking plates
1 x matching drill bit
3 x shoulder screws
3 x hex nuts
5 x reminder labels
2 x fixing straps
1 x generator start-up procedure label
1 x installation instructions
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