Object 640 Kaktus ERA system - interesting overlapping position of each ERA tile sure looks like more serious effort than what you see on Budget Cuts 3.
Also, according to pattent they wanted to detonate tiles in layers to increase amount of counter-actions against incoming penetrator. External ERA cover was involved in counter-action. After first layer detonates, a soft-ish material in between first and second layer of ERA was delaying damaging effects of first ERA detonation while tubes with explosives worked as detonators for second layer of ERA.
On thise side cutaways you can see those detonation tubes between ERA tiles