Thingiverse
Generator Interlock
by Old-Steve
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I made this interlock to fit my little 100A breaker panel. All my breakers are in a single row and the main is in the middle. Since my generator only puts out 110 VAC I added another breaker stop for the A/C unit.
My A/C breakers are on 1 and 2. My generator input (back feed) breakers are on 3 and 4. My main breakers are on 5 and 6.
Up is the normal position for the interlock. The main and the A/C are on and I cannot turn on the generator breaker.
Turn off all the breakers then slide the interlock down. Then I can turn on the generator breaker and I cannot turn on the main or A/C breakers.
I made two interlocks. One is a double, that’s the one I used. The other one is inverted from my double interlock design. One protuberance instead of two.
Printed in ABS 50% infill
My A/C breakers are on 1 and 2. My generator input (back feed) breakers are on 3 and 4. My main breakers are on 5 and 6.
Up is the normal position for the interlock. The main and the A/C are on and I cannot turn on the generator breaker.
Turn off all the breakers then slide the interlock down. Then I can turn on the generator breaker and I cannot turn on the main or A/C breakers.
I made two interlocks. One is a double, that’s the one I used. The other one is inverted from my double interlock design. One protuberance instead of two.
Printed in ABS 50% infill
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