Kontakt-1

Kontakt-1 (Russian: Контакт-1; GRAU indice: 4S20) is an explosive reactive armour (ERA) created in 1982 by Soviet NII Stali to protect tanks from shaped charges. The first tank with Kontakt-1 put into service was T-64BV in 1985. The system is still widely used by different countries within T-55, T-62, T-64, T-72, T-80 tank families among others.

Kontakt-1 was the first Soviet ERA system, and its successor is Kontakt-5, put into the service in 1988.