It fits perfectly and serves its purpose. I think the yoke is more of a reminder than a lever as its rivet is quite weak. I don't plan on turning on the generator breaker and expect the seesaw to shut off the mains without breaking the rivet. Will turn off the grid and then turn on the generator breakers and vice versa when it comes back to grid. As said, this is a reminder and lock, not a means of turning on two switches with one press. good deal compared to other devices out there. It's still a sub-dollar item, selling at a huge premium. But it's a niche product, and given the alternatives, I give it 4 stars for value for money. Installation was easy, I spent more time loosening the four screws holding the panel's faceplate than engaging the lock on the generator switches. Two minutes total, if that. In general yes, I am satisfied with the purchase.
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