Surge protector devices
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Surge protector devices low voltage electrical material

Gcu/e low voltage electrical material Surge protector devices Introduction to surge protector devices 6 Surge protector devices Class I 12 Surge protector devices Class II 14 Surge protectors for telecom and data lines Class III 19 PV Overvoltage surge protection devices 20 Permanent overvoltage protection (TOV) 22

Gave Electro is an international manufacturer of electrical control and protection products with an extensive professional record since it was founded in 1944. The company has developed technical capabilities on the low voltage breaking, control and protection fields acquiring strong reputation on its protection and control equipment. Innovative thinking is our philosophy. We create better more effective products and processes applying new ideas that benefit from our longstanding experience. A dedicated engineering team boosting your competitiveness.

Gcu/e low voltage electrical material Surge protector devices Gave Electro follows a total quality management (TQM) system as an integrative philosophy of management for continuously improving the quality of products and processes. This system functions on the premise that the quality of products and processes is the responsibility of everyone who is involved with the creation or consumption of the products and involves management, workforce, suppliers, and even customers, in order to meet or exceed customer expectations. Constant rigorous product testing is undertaken during all...

Introduction to surge protector devices «Protector advanced technology» Compact surge protector devices (SPD) are developed to meet overvoltage protection needs for low voltage networks. These overvoltages are mainly generated by lightning although also industrial changeovers and network failures. They provide common/differential protection. Operating principle PST surge protectors are based on zinc metal-oxide varistors (MOV), the best compromise between a fast response time (<25 ns) and a high discharge current capacity, which are the main parameters to provide efficient protection. Surge...

Surge protector devices Type of surge protectors The AC power surge protectors are split into 3 categories by IEC 61643-1 and EN 61643-11 standards. These different categories depend on the location of the surge protector in the AC network and on the external conditions. • Class I Type 1 surge protectors are designed to be installed where a direct lightning strike risk is high, especially when the building is equipped with external lightning protection system (LPS or lightning rod). In this situation, EN 61643-11 and IEC 61643-1 standards require the Class I test to be applied to surge...

Disconnection devices In compliance with the standards, the AC power surge protectors are equipped with external and internal disconnection devices in order to provide total safety in case of failure. P2 : Protector de sobretensiones primario r P3 : Protector de sobretensiones secundario L1 : Longitud del conductor entre protectores L2 : Longitud del conductor entre el protector y la instalación 2 types of devices are necessary: Coordination of surge protectors In order to provide maximum protection efficiency, it is necessary to create a «coordination» diagram, that means installation of a...

Gcu/e low voltage electrical material Surge protector devicesCommon and differential mode protection Lightning surges occur essentially between active conductors and earth. A live conductor not only refers to the phase conductors but also to the neutral conductor. These overvoltages are protected on Common mode. Differential overvoltages can occur between live conductors when we are operating on a TT earthing system. It can also appear on TN-S eartingh systems if there is a significant length difference between PE and N cables. The standard IEC 60364 allows combination of protection between...

Appliance following IEC 60364 We use the installation standard IEC 60364 as a rule to select which protector should be installed. Section 4-443 and Section -5- 534 help us establish protector characteristics and where to install it. Additionally we rely on IEC 61643-12 as selection guide related to the application Installation Connection to Connection to The unavailability equipped with direct overhead AC line underground AC line of the electrical lightning protection network could have human safety Risk analysis required * Ng: Lightning density (see information below) Nk:...

Surge protector devices Regional/national standards Typically regional/national standards defines additional conditions where surge protection will be mandatory or recommended. Representative conditions are: Public services (street lights, telecoms, police,..) Farming installation when affecting animal safety. Emergency systems (emergency lights, security alarms, CCTV,..) Industrial processes requiring continuity (Food processing, chemical, pharmacy,..) Electronic components have extensively been introduced in our daily life being present at almost all appliances connected to the network...

Surge protector devices Class I The PST4B100 is a compact Class I Surge Protector Device designed to be connected at the entrance of the electrical installation on 3-Phase networks. This device provides efficient protection against direct and indirect effects of lightning phenomena on electrical networks. This protection is specially adequate on those buildings endowed with lightning rods or LPS systems. This protection is based on combining high discharge capacity MOV varistors with specific GDT providing common and differential mode protection. This technology allows the best...

Gcu/e low voltage electrical material Surge protector devices Mechanical characteristics Installation scheme

Surge protector devices Class II Compact surge protector devices (SPD) are developed to meet overvoltage protection needs for single phase low voltage networks. These overvoltages are mainly generated by lightening although also industrial changeovers and network failures. SPDs provide common/differential protection. The electrical scheme on overvoltage SPD are based on high energy varistors equipped with thermal disconnector and a specific gas discharge tube GDT. Protectors are built with plug-in modules with failure indicator and a din rail fixed block base, which allows an easy and quick...