Post circa 2000, Rafael oriented its R&D towards NxRA/SLERA. I know it because pretty much every single patent of theirs past that date describes their new armors being of these types. The recent "KE Shield" being called outright an ERA is an outlier. But in any case, the outward appearence of Eitan side armor modules is coherent with these being SLERA/NxRA. Though with the limited evidence we have at the moment we can´t be conclusive.
Just an example from US 7,779,742 B2, published by Rafael in 2010. It would be a type of SLERA given its stated to use explosive reactive elements. But looks extremely similar to what Eitan has.
One last comment. The picture showing the Eitan in the factory its very clear regarding the disposition of reactive modules and likely protection performance: there are 2 rows of modules separated by an intermediate layer, perhaps being composite or perhaps being a light metal like aluminium. This means circular protection against tandem HEAT charges, at least of 105mm caliber (PG-7VR, RPG-29, Yasin, etc.).