Powercap Systems [Madras] Pvt Ltd is the manufacturer and supplier of Common Mode Chokes with Ferrite Toroid Cores. Powercap Systems [Madras] Pvt Ltd ISO 9001: 2000, SO / TS: 16949: 2002 and ISO 14001: 2004 EMS certified company. Common Mode Chokes with Ferrite Toroid Cores offer high magnetic efficiency as the cross sectional area is uniform and there is no air gap.