QO breaker with an LED?
A friend of mine recently purchased a house. The wiring is a disaster. I'm quite curious what I'm looking at, as seven of the original circuit breakers fit in a SquareD QO box but don't look like any QO breaker I've ever seen before. The handles are narrower and, instead of the "visi-trip indicator" near the handle, there is what appears to be an LED on the opposite end of the breaker. I have not made any attempt to trip any of these breakers so I don't know if they work or if, as I assume, the LED lights up when they do.
I haven't personally taken any photographs but here is one he sent me when he was looking for a cover for the box:
Also seen, for the first time, a breaker fail to turn on. Simply did not conduct. No power, no matter what. I've never seen that happen before.