As others have said they aren't as strong as a true industrial switch which costs 20x more but they are great for any non-industrial application. .I have 1 closer and 1 opener (form AB) instead of two as in the description. Edit: The first one failed after a few weeks of light use, and the break contacts on the other two are always open. I did some tweaking to the plastic switch plunger that held the break contact, but now the normally open contacts won't close to about 90 degrees. In my application, I cannot mechanically adjust the actuator precisely enough to ensure reliable operation. Hopefully the contacts switched at about a 45 degree angle and not at 0 and 90.
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