CITEL, Expert in Surge Protection
For many years, CITEL has focused its expertise on protecting electrical and electronic networks and equipment against transient overvoltages, particularly those caused by lightning strikes.
To meet these challenges, CITEL designs and manufactures two complementary product families: gas discharge tubes and surge protection devices (SPDs).
Gas Discharge Tubes (GDTs): a key component in network protection
Gas discharge tubes are passive components based on rare gas discharge technology. Compact and highly efficient, they are essential for protecting telecommunication networks and equipment against transient surges.
Historically used by telecom operators, these components are installed at the entry point of telephone lines to secure infrastructures and sensitive equipment.
Thanks to numerous patented innovations, CITEL gas discharge tubes are approved by many French and international organizations.
CITEL is also one of the few manufacturers that designs and produces its own gas discharge tubes and integrates them directly into its surge protection solutions.
Surge Protection Devices (SPDs): reliable protection for equipment
CITEL surge protection devices combine several protection technologies, such as gas discharge tubes and varistors, to ensure effective protection of electrical and electronic installations.
Integrated directly into installations, they help to:
limit transient overvoltages to levels acceptable for equipment,
safely discharge repetitive surge currents,
and ensure the reliability and continuity of systems.
CITEL solutions are designed to meet the requirements of the most demanding environments and provide long-term protection for critical infrastructures.
The CITEL range: wide and complete
From standard products to custom-designed solutions, the CITEL range covers a wide variety of applications, including:
- low-voltage installations,
- telecommunications and radio networks,
- photovoltaic systems,
- LED lighting,
- industrial and commercial infrastructures,
- and many other sectors.
Every year, millions of CITEL surge protection devices are manufactured and installed worldwide, reflecting the quality, reliability, and trust placed in the brand by customers and partners alike.