Kalashnikov Concern presented a new active protection system for light armoured vehicles made by Research Institute of Steel, Kalashnikov Concern, to the exhibitors and visitors of the IDEX-2023 International Defence and Security Exhibition. The system is based on the 4C24 explosive reactive armour (ERA) module.
It essentially differs from the 4C20 offered on the market before. Its properties prevent detonation of the adjacent modules when the module is hit by a grenade. Previously, engagement of one ERA module resulted in failure of several adjacent modules and, thus, an unprotected armour area increased. The new module significantly improves the armoured vehicle survivability on the battlefield.
The system still ensures protection against grenades penetrating up to 500mm of steel armour from any fire direction. The guaranteed shelf life of ERA has been increased by half. The 4S20 module required replacement after 10 years, the 4S24 ERA requires replacement after 15 years.
The 4S20 and 4S24 modules are interchangeable. Their dimensions and weight are the same and the performance of an existing system with the 4S20 ERA may be improved just by replacing the modules.