That’s a plug on neutral panel so the breaker does not require a pigtail.
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This is what Robert is referring to as “plug on”. These bars coming down the sides are connected to the neutral bus, and the breaker has a connection point on the back side that makes contact, so no pigtail required.
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Thank you gents for the clarification. That’s what I suspected after seeing Zhang’s pics.
Expect to see more of these plug in neutral load centers, they are becoming more common and less expensive for homebuilders and residential contractors and they are starting to use them more in new construction now. Great observations and advise given above.
Here is a PDF link to some of Eaton’s marketing literature on it if you want to see a little more detail.
Square D’s is very similar and I think these will be easier for us to spot issues in as they become more common because there’s so much less gutter mess to look at.