Founded in 1995 and headquartered in Izmir/Turkiye, EFO Elektrik A.S. is a specialist manufacturer of HV fuses and MV disconnectors. The company is an established supply partner for utilities, EPC contractors, industrial enterprises, and wholesalers across Europe and beyond, serving customers in more than 40 countries worldwide. Notably, EFO holds EDF/ENEDIS approval as one of only three HV fuse manufacturers qualified to supply the French distribution network.

EFO's product range covers DIN, UTE, and British standard fuses; voltage transformer protection, motor protection, and capacitor protection fuses; indoor and outdoor disconnectors (manually operated and motorised); load break switches; IACMs; compensation panel disconnectors; and fuse bases. When a project demands more than standard products can offer, EFO's engineering team works directly with clients to design and manufacture tailored solutions.

EFO's products are type-tested by Europe's leading accredited laboratories, including KEMA, CESI, EDF Lab Les Renardières, IPH and ZKU, and each unit undergoes routine testing prior to shipment to ensure full compliance with relevant international and regional standards.

The company operates a REACH and RoHS compliant supply chain and holds certifications to ISO 9001, ISO 14001, ISO 14064, ISO 27001, and ISO 45001, delivering the traceability, environmental accountability, and audit-ready documentation that utility and EPC procurement processes demand.