SURGE PROTECTORS Catalog 10-1 Smart city

General Catalog 10-1th edition DIN RAIL AC POWER SURGE PROTECTORS DIN RAIL DC POWER SURGE PROTECTORS AC POWER SURGE PROTECTION PANELS LED SYSTEM SURGE PROTECTORS PHOTOVOLTAIC SURGE PROTECTORS TELECOM & DATA LINE SURGE PROTECTORS General Catalog 10-1th edition - 2021 - This document could be modified without notice. COMPUTER NETWORK SURGE PROTECTORS HIGH FREQUENCY COAXIAL SURGE PROTECTORS

THE SPECIALIST IN OVERVOLTAGE PROTECTION With a thorough understanding of local standards and regulations, along with continuous investment in R&D, CITEL designs, manufactures and sells millions of SPD’s each year. CITEL develops many critical protection components internally. Our teams all over the world are proud to help bring the market a comprehensive product range of surge protectors with our unique client-focused service & quality. CITEL’s only business and expertise is to protect networks and equipment from transient overvoltages, in particular those induced by lightning. For this, CITEL...

OURS MEANS OF TESTS 3 LABORATORIES... CITEL constantly pioneers new technologies thanks to a bold innovation strategy, high-level R&D and in-house regional test labs around the world. CITEL is recognized as an industry leader that is instrumental in the development of international codes and standards. In order to test its products internally for standards compliance and to evolve toward greater reliability CITEL has several centers of expertise and research(France, USA, China) equipped with : • Various transient surge current and surge voltage generators such as 8/20, 10/350,10/1000, 1.2/50......

Production & Tests Laboratories France - Sèvres Headquarters - General management - Administrative and Financial Department - Sales division : France and Export - Communication & Marketing Department France - Reims Production and Shipment Research and Development SUBSIDIARIES Citel Electronics GmbH Bochum (Germany) Citel Inc. Miramar (USA) Shanghai Citel Electronics Co., Ltd Shanghai (China) OOO Citel Vostok Moscow (Russia) Citel India New Delhi (India) Citel Thailand Bangkok (Thailand) Citel Middle East Dubai (United Arab Emirats)

Manufacture of the first surge arrester CITEL founded 1st AC modular surge protector CITEL Germany Reims factory CITEL Shanghaï - AC surge protector new range «DS» series - VG technology for AC surge protector CITEL Russia Implementation of a test laboratory in Reims New test laboratory 240 kA in CITEL Shanghai CITEL India CITEL Thailand CITEL Middle East

CITEL PROTECTS OUR PLANET Besides our constant work on the quality of our products, we take into account the ecological issues of our planet. This is why CITEL is working to optimize its production equipment in order to reduce the impact on the environment. We have chosen for our new range high quality raw materials. Our products use Halogen free material and comply with RoHS regulations. CITEL is ISO 14001 certified and meet the requirements of the WEEE directive. PRODUCTION RESPECTING ENVIRONMENTAL STANDARDS PURCHASE OF MATERIALS COMPLIANT WITH THE ENVIRONMENTAL REGULATIONS

TRANSIENT OVERVOLTAGES An electrical network generally has a normal voltage: we also speak of nominal voltage. The network can be accidentally brought to a voltage higher than its nominal voltage: this is called overvoltage or surge voltage, if this one is very short. One of the possible causes of electrical or electronic equipment failure are the surge voltages . WHAT IS THE ORIGIN OF AN SURGE VOLAGE ? Surge voltages differ in amplitude, duration and frequency. While protection against power surges caused by lightning or switching will require the use of surge protective devices (SPD), «ESD»...

Indirect effects of lightning Impact on overhead lines Such lines are very exposed and may be struck directly by lightning, which will first partially or completely destroy the cables, then cause high surge voltages that travel naturally along the conductors to lineconnected equipment. The extent of the damage depends on the distance between the strike and the equipment. Rise in ground potential The flow of lightning in the ground causes earth potential increases that vary according to the current intensity and the local earth impedance. In an installation that may be connected to several grounds...

CONSEQUENCES OF SURGE VOLTAGES The lightning incident is relatively common. Statistically, the share of damage caused by lightning on computer equipment is far from negligible. The consequences of a disturbance are not always visible and immediate. The weakening of a component by an overvoltage can lead to a reduction in the lifetime of the equipment, or a ‘deferred’ failure. The user can therefore not make the link between the failure and the real cause. He will hasten to establish a bad diagnosis, therefore a bad treatment of the problem. Overvoltages have many types of effects on electronic...

DIN RAIL AC POWER SURGE PROTECTORS

DIN RAIL AC POWER SURGE PROTECTORS CITEL AC power Surge Protective Devices (SPD) are designed to meet all your surge protection needs for any low voltage installation. These DIN rail mounted surge protectors are easy to install in any standardized distribution panel or control cabinets. The SPDs are equipped with a thermal disconnection device and provide real-time fault indicators thus allowing complete operational safety. DS and DAC surge protectors are available with several protection circuits to comply with even the most demanding installations and standards compliance requirements. CITEL...

In order to improve the surge protection efficiency, CITEL has developed a patented technology which combines a high energy varistor (MOV) network and a specific gas tube (GSG). This specialized circuit incorporated in the «VG» Type “1+2+3” surge protectors (DAC1-13VG, DS250VG, DUT250VG) or Type “2+3” (DAC50VG) can achieve better perfor- mance of: • Protection level, • Life duration (due to suppression of leakage current), • Non-disturbing operation (no follow current) • TOV behavior. For instance, these features allow it to reach, even with a single stage of surge protection, the same protection...