Explosive reactive armor detonates when hit by an enemy antitank round destroying, or at least deflecting the incoming projectile, which would otherwise penetrate the tank's armor.
M60A1 Blazer
Magach 6
The M60A1/Magach 6 (Merkavot Giborei Hamilchama - Chariots of the War Heroes) entered service in the 1970s and became the mainstay of the Israeli Armored Corps. The Magach 6 upgrade for the M60, M60A1 and M60A3 integrates Blazer reactive armor, a thermal sleeved 105mm gun, and other improvements.