I am providing information about Explosive Reactive Armour (ERA) developed by DRDO for your reference:

Explosive Reactive Armour (ERA) is an add-on armour designed to offer additional protection to tanks against shaped charge warheads of modern antitank guided missiles (ATGMs).

The ERA developed by DRDO is a sandwich of explosive and metal plates.

The panels of ERA are assembled in metallic containers.

Based on RDX, a special type of sheet explosive has also been developed for ERA.

This sheet explosive is waterproof. It is not cap sensitive and also quite insensitive to frition, impact and heat.

Features of ERA
Effectively reduces the penetration of warheads of modern ATGMs
Immune to detonation against small arms ammunition and artillery shell fragments
Minimum collateral damage
No initiation by arc welding or by accidental drops
Functions with equal efficiency even after deep fording by the tank
Operational temperature ranges from 20 oC to +55 oC
No sympathetic detonation of neighbouring panels when one panel explodes
Tank mobility and manoeuvrability not compromisis
The weight penalty is kept to the minimum about 1.5 ton per tank

ERA Technology Involves:
Preparation of reactive elements
Preparation of armour plates of different thicknesses using DMRL developed
armour material
Fabrication of metallic panels
Proof testing of reactive elements along with panels
Fabrication of various mountings/ fixtures
Preparation of Tank surface for welding of mountings/fixtures, which involves
relocation of certain components
Welding of mountings/ fixtures on tank
Fitment of panels on tank
Infrastructure required for manufacture of ERA Mk-II:
Reactive elements
Sigma Mixer
Rolling Machine
General fabrication equipments like shearing machine, Die & punch, marking & measurement tools
Crimping machine


DRDO Explosive Reactive Armour (ERA)