MPP Capacitors are manufactured using imported Zn-Al Metallised Polypropylene film with reinforcement. This special construction enables capacitor to withstand higher switching surges. In case of Oil filled capacitors assembly is done in CRCA container and impregnated with NPCB oil. For dry type capacitors assembly is done in aluminium can containers and are impregnated with polyurethane resin wax. These models have pressure interrupter arrangement for safety against bursting Both designs are available in normal duty and heavy duty applications.