How To Make A Power Meter Safe

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3 Safety and Reliability Jörg Jelen Safety and Reliability Dear valued customers and prospects, You now hold the latest Leutron catalogue in your hands which will provide you with an overview of our products along with a lot of technical information, concepts and high performance solutions. It offers you recommendations and assistance for the selection of an effective surge protection. Build-up of isolated spark gap Not only our products, but personalized approach and support, customer trainings at our location or at the customer s site, as well as our flexible solutions and short decision-making processes proof that safety is the priority of every staff member. We thank you and our business partners for your trust and hope our commitment helps you to gain more success and safety. Leutron protects people and valuables for more than 50 years and is engaged in limitation of surge voltages and discharging of impulse currents for your benefit as a customer. We offer you a maximum of safety, quality and durability, guaranteed by sophisticated production processes such as high temperature soldering and vacuum technology, ground-breaking product development, years of experience and the know- how resulting out of this. Jörg Jelen General manager State-of-the-art technology is the foundation of our products and recent developments. Together with our customers we create innovative solutions for all individual problems and provide solutions for various applications. We ensure the operation of your installations and equipment even in rough industrial environment and prevent their breakdown during heavy thunderstorms. On the following pages we present protection devices for electronic products, information technology systems, for AC diverting and for current and voltage transformers which provide the highest possible degree of safety for you. 1

4 Success for more than 50 years! metal ceramics GDT 1970 Metal glass discharge tube 1960 Leutrons Product portfolio includes among other things: Newly developed combined arresters: The complete units are applicable for all LPLs with TN, TT, and IT net systems Protection devices with EMI filter up to 200A: LEUTRON provides the EnerPro with low-pass filter (EPF) for the protection of sensible electronic equipment against surges and power failures, caused by switching operations in the networks (transients) or by lightning strikes. AC arrester PLPro: LEUTRON introduces a maintenance free AC arrester. The device is part of cathodic corrosion protection concepts where it is used to avoid influences of AC voltage. Hermetically sealed, inert (rare) gas-filled isolating spark gaps with high extinguishing capacity LEUTRON produces customer sized isolating spark gaps with a high quality standard. They can be provided in many different sizes and styles for all network forms. Hermetically sealed, inert gas-filled high performance isolating spark gaps LEUTRON offers the first ATEX-tested and certified TSF (Ex-protection isolating spark gap TC 100A) At the single entry point (SEP) the surge protection devices for all copper lines are installed. Therefore the principle offers all possibilities for customer wished modification of the lightning and surge protection and the possibility to utilize all kinds of protection. At the single entry point (SEP) the surge protection devices for all copper lines are installed. Therefore the principle offers all possibilities for customer wished modification of the lightning and surge protection and the possibility to utilize all kinds of protection. For optimum protection against surges our arresters are installed according to the SEP (single-entry-point) concept, which is an easyto-handle and simple to understand way of protecting. Here all incoming and outgoing copper-lines of a protection zone are connected at one single point (SEP) and thus all kinds of potential disturbances can be controlled and no uncontrolled spreading of potential differences or respectively galvanic coupling are possible any more. 2

5 High performance electrodes Gas tube arrester High performance copper electrodes Cu Impressions of manufacturing Leutron products are presented on every important exhibition worldwide. Light & Building eltefa Lightning and surge protection solutions are of interest everywhere. Slowakei Japan 3

6 Awarded! VDE Network future we re in. Siemens: Fit-for-Future: ISO 9001:2000 Quality and your safety are what we care for. History, present and future of surge protection. Our business ambition will be your benefit. 4

7 Contents Overview Security and Reliability... 1 Quality and Reliability... 2 Activities... 3 Rewards... 4 Contents Overview... 5 Technological Details... 6 Overview of Standards... 6 Terms... 7 Power Engineering...13 Overview of SPD Wiring...14 Selection Guide: Surge Voltage Protection in Power Supply...18 Quick Selection of Products...20 Product Overview for Power Engineering...24 Total Package for Pipeline Protection Protection of Photovoltaic Installations Information Technology Quick Selection of Products Test Categories for SPDs in Information Technology Product Overview for Information Technology Wiring Diagrams for LSA Equipment Protection Devices for Measuring Transformers Class I+II SPDs with Temperature Monitoring Rare-Gas-Filled Isolation Spark Gaps Spark Gaps for Indoor Application over 70 V ac Spark Gaps for Outdoor Application over 50 V ac Spark Gaps for Areas in Danger of Explosion, ATEX Spark Gaps for Hat-Rail Mounting Protection Devices for AC Arresting AC Arresters over 40 A with Class I Lightning Conductor Digital Measuring Instrument and Test Kits Tester for Lightning and Surge Voltage Arresters Tester for Surge Voltage Protectors with Varistors/Diodes Combined Tester Portable Test Equipment for LSA Magazines Pulse Counter Technological Details Origins of Surge Voltages Types of Surge Voltages Inductions Installation Instructions Combination Concept: Lightning Protection Zones and SEP Concept (SEP-Prinzip ) SEP Concept Numeric Product Register Alphabetical Product Register General Terms and Conditions of Sale How to find us

8 Technological Details Overview of Standards DIN VDE : , chapter 44: Protection against surge voltages, chapter 443: Protection against surge voltages caused by atmospheric influences or switching operations DIN VDE : , Low-voltage electrical installations Selection and erection of electrical equipment Devices for protection against overvoltages German implementation of IEC , part 534: Electrical installations of buildings IEC part 1-4: , International standard for protection against lightning DIN EN 62305; VDE : , German implementation of IEC part 1-4: DIN VDE ; VDE : , Telecommunications; general concepts; requirements and tests for the safety of facilities and apparatus DIN VDE ; VDE : , Telecommunications; earthing and equipotential bonding DIN VDE ; VDE : , Telecommunications; transitional requirements on erection and operation of installations DIN EN ; VDE : , Information technology Cabling installation Part 2: Installation planning and practices inside buildings; German version EN :2009 DIN EN 50310; VDE : , Application of equipotential bonding and earthing in buildings with information technology equipment; German version EN 50310:2006 DIN EN ; VDE : , Lightning protection Telecommunication lines Part 1: Fibre optic installations (IEC : Corrigendum 1999); German version EN :1999 DIN EN ; VDE : , Lightning protection Telecommunication lines Part 2: Lines using metallic conductors (IEC :2001); German version EN :2001 IEC : , Surge protective devices connected to telecommunications and signalling networks Selection and application principles DIN CLC/TS ; VDE V : , (German version of IEC :2004, modified) Surge protective devices connected to telecommunications and signalling networks Selection and application principles DIN IEC ; VDE : , Wind turbines Part 24: Lightning protection (IEC 88/322/CD:2008) VdS 2010: , Risk-oriented protection against lightning and overvoltages, directives for damage prevention VdS Damage prevention at the Gesamtverband der Schadenversicherer e.v. (German Damage Insurers General Association) VdS 2031: , Protection against lightning and overvoltages in electrical installations, directives for loss prevention VdS 2019: , Overvoltage protection in residential buildings VdS 2258: , Protection against overvoltages VdS 2569: , Overvoltage protection for electronic data processing systems, directives for damage prevention Overview of Product Standards IEC : Part 1, Surge protective devices connected to low-voltage power distribution systems Requirements and tests DIN EN ; VDE : , Low-voltage surge protective devices Part 11: Surge protective devices connected to low-voltage power systems Requirements and tests (IEC : corrigendum 1998, modified); German version EN : A11:2007 DIN EN ; VDE : , Low voltage surge protective devices Part 21: Surge protective devices connected to telecommunications and signalling networks Performance requirements and testing methods, (IEC : Corrigendum A1:2008, modified); German version EN : A1:2009 6

9 Technological Details Technical Terms Active Parts Active parts are conductors and conductive parts of equipment that are alive under normal operational conditions. Aging Aging is the alteration of the original conductivity. It is caused by disturbance pulses, normal operation or unfavourable environmental conditions. Approach (today: Separation Distance) An approach is a too narrow distance between the lightning protection installation and conductive installations or electrical installations with a risk of a flashover or breakdown at lightning strikes. Arc Voltages U bo The arc voltage is the instantaneous value of the voltage over a discharge path during an arc discharge process. Arresters Equipment that in general consists of voltage-controlled resistors and/or spark gaps. Both items can be used separately or connected in series or in parallel. Arresters protect other electrical equipment or installations against unacceptable high surge voltages. Asymmetrical Interference Asymmetrical means that the interference source or drain is related to the ground. It exists a capacitive or galvanic connection to the protective conductor. Asymmetrical Voltage, Common-Mode Voltage Average voltage between every conductor and a specified reference point, usually reference earth or ground. Burst A burst consists of repeatedly occurring pulses within a certain time period. Combined Arrester The combined arrester is a surge-voltage protection device consisting of lightning current arrester and surge arrester. Combined Impulse A combined impulse is generated by a combination wave generator which generates a no-load impulse voltage (1.2/50), respectively, a short-circuit impulse current (8/20). The voltage, the amplitude of the current and the waveforms are determined by the generator and the impedance of the SPD. The ratio of the peak values of the noload voltage and the short-circuit current is 2 Ω. This value is called the fictitious impedance Z f. The short-circuit current is referred to as I cs. U oc is the no-load voltage of the generator. Critical Discharge Current i SG The critical discharge current is a current pulse of the waveform 8/20 μs which just about triggers the disconnection device and which does not yet lead to a mechanical damage of the arrester. Direct or Close-up Strikes Direct and close-up strikes cause surge voltages with an energy content that contains a considerable part of the total energy of a lightning discharge. Disconnection Device If an arrester fails to operate, the disconnection device separates it from the power grid to avoid a fire hazard and to report the defective arrester. Note: It is not the task of the disconnection device to ensure the protective measure Protection at indirect contact. Disturbance Voltage, symmetrical The symmetrical disturbance voltage is a disturbance voltage between two wires of a conductor (e.g. at a double-circuit line) or between the terminals of an electrical installation for such a line. Double-port SPD A double-port SPD has separate input and output terminals with a series impedance between them. Earth Earth signifies the ground or the soil. Earthing (noun) Earthing refers to the total of all means and measures for earthing. Earthing (verb) To earth means to connect a conductive part, e.g. the lightning protection installation, via an earth-termination system to the earth. Earthing Conductor The earthing conductor connects the installation which has to be earthed with the earthing electrode, as far as the earthing conductor runs above soil or insulated in the soil. Earthing Electrode An earthing electrode is a conductor buried into the ground with an electrically conductive connection to the earth. Parts of connectors that run to the earthing electrode which are lying non-insulated in the ground are part of the earthing electrode as well. Electromagnetic Compatibility (EMC) The electromagnetic compatibility of a device or a system is its capability of a satisfactory operation in its electromagnetic environment, without causing unacceptable electromagnetic disturbances to other installations in this environment. 7

10 Technological Details Technical Terms Electromagnetic Interference The electromagnetic interference refers to a quality loss in operational behaviour, a malfunction or the breakdown of an electrical or electronically device caused by an electromagnetic disturbance. Impulse Current (8/20) This impulse current has a front time of 8 μs and a time to half-value of 20 μs. Electrostatic Discharge (e.s.d.) An electrostatic discharge is the transfer of electric charges between objects with different electrostatic potentials, which takes place at approximation or contact. Endurance Test In an endurance test the surge arrester has to undergo load tests, that simulate loads frequently occurring in practice. Equipotential Bonding (Potential Equalization) Potential equalization means to remove potential differences (at the operation of consumer s electrical installations), e.g. between the protective conductor of the electrical power installation and the pipes for the water, gas and heating supply, as well as between the individual pipes. The equipotential bonding at lightning effects requires measures beyond the specifications of VDE Therefore, the lightning protection installation is connected to other conductive installations via conductors or isolation spark gaps and, if necessary, to active parts of electrical installations via surge protection devices. These measures are called lightning protection potential equalization. Equipotential Bonding Bar This bar connects protective conductors, potential equalization conductors and, where applicable, functional earthing conductors with the earthing conductor and the earth electrodes. Impulse Discharge Current Discharge current that flows through the arrester after it is triggered. It is given as a peak value. The nominal impulse discharge current is the peak value of an impulse current of the pulse form 8/20 μs. Impulse Sparkover Voltage of a Surge Protection Device Highest voltage value between the electrodes of the spark gap of a surge protection device, just before the sparkover occurs. Impulse Voltage (1.2/50) This impulse voltage has a front time (between 10 % and 90 % of its peak value) of 1,2 μs and a time to half-value of 50 μs (at U oc = 6 kv). Follow-on Current I f The follow-on current flows through the SPD after the diverting process. It is supplied from the grid and differs fundamentally from the continuous operating current. Foundation Earthing Electrode The foundation earthing electrode is a conductor that is embedded into the concrete foundation of a construction. Gas-filled Surge Arrester (GDT) A gas-filled surge arrester is a discharge path filled with another gas than air, normally rare gas. Ground Resistance The ground resistance is the resistance between the earthing system and the reference earth. The amount of the ground resistance depends on the interaction of the individual earthing electrodes. Impulse Withstand Voltage U st The impulse withstand voltage is the peak value of the highest pulse voltage of a predefined waveform and polarity, which does not result in a breakdown under predefined test conditions. The impulse withstand voltage is equal to or higher as the rated impulse withstand voltage. Insertion Loss The insertion loss of an SPD is, at a given frequency, the ratio of the voltages at a supply network point immediately downstream to the SPD before and after the insertion of this SPD. The value is given in decibel. 8

11 Technological Details Technical Terms Insulation Resistance R iso The insulation resistance is the resistance of the surge arrester in the non-conductive state. Interference Suppression Interference suppression comprises all measures to abate or avoid electromagnetic interferences. Isolation Spark Gap The isolation spark gap is a spark gap to isolate conductive parts of an installation. When the spark gap is triggered by a lightning strike, the parts are temporarily conducted (lightning-protection equipotential bonding). Measured Limiting Voltage Maximum voltage that is measured at the terminals of an SPD while pulses with a preset form and amplitude are applied. Nominal Alternating Discharge Current I wn The nominal alternating discharge current is the alternating current with frequencies between 15 and 62 Hz (primarily 50 Hz), which the test object is dimensioned for in a specific test procedure. Nominal Impulse Discharge Current I n The nominal impulse discharge current is the peak value of a current with the waveform 8/20 that flows through a surge protection device. It is used to classify the test for class II surge protection devices. Lightning Current Arrester The lightning current arrester is a surge-voltage protection device which is capable of carrying direct lightning currents. Lightning Impulse Current Discharge (Lightning Impulse Current) The 10/350 μs lightning impulse current has a front time of 10 μs and a time to half-value of 350 μs. Nominal Load Current I L The nominal load current is the maximum continuous, alternating or direct current which can flow from the output of an SPD to the connected load. Nominal Voltage U N The nominal voltage, as a rounded voltage value, specified by the manufacturer of an electrical apparatus to identify it and to specify the voltage range for which it is designed. Lightning Impulse Current I imp The lightning impulse current Iimp is defined by its peak value I max, its charge Q and the specific energy W/R with a 10/350 μs waveform. The test is carried out according to the test procedure of the operation duty test. It is used to classify the test for class I surge protection devices. Lightning Protection Installation The lightning protection installation is the sum of all equipment for the external and internal lightning protection of the installation to be protected. Lightning Surge Voltage The lightning surge voltage is a surge voltage caused by a lightning discharge. Longitudinal Voltage Drop The longitudinal voltage drop is a means (instead of the insertion loss) to evaluate overvoltage arresters for dc voltages or low operating frequencies up to a maximum of 400 Hz. The longitudinal voltage drop is measured along the current path or paths at nominal current and, where applicable, operating frequency. Main Supply Short-Circuit Current I K The main supply short-circuit current is the short-circuit current which results from the impedance of the test network and the connecting cables at the installation point of the test object. Overvoltage Category The overvoltage category is the classification of a piece of electrical equipment to the expected overvoltages. Potential Equalization Conductor The potential equalization conductor is a conductive link to achieve potential equalization. Potential Equalization Installation The potential equalization installation is the total of all interconnected potential equalization conductors, including all other conductive parts which work in the same way, e.g. housings or other conductive installations. The potential equalization installation can either be the earth-termination system or part of it. Power-Frequency Withstand Voltage The power-frequency withstand voltage is the r.m.s. value of the highest sinusoidal voltage at system frequency, which does not result in a breakdown under predefined test conditions. Protection Level U p The protection level is a parameter which characterizes the performance of an SPD to limit the voltage between its terminals. The protection level is chosen from a list of standard values and has to exceed the highest value of the measured limiting voltages. 9

12 Technological Details Technical Terms Protection Path The parts of an SPD can be connected as conductor against conductor or neutral conductor against earth, or a combination of these possibilities. These methods of connection are called protection paths. Pulse A pulse is a rapid, temporary change of a physical parameter followed by a fast change back to the original value. Rate of Rise The rate of rise is the average change rate of a parameter between two certain values, e.g. between 10 % and 90 % of the peak value. Rated Voltage of an Arrester U c Maximum acceptable root-mean-square value of the power-frequency ac voltage that can be permanently applied to the terminals of the arrester. Reference Earth Reference earth is the reference ground (especially the earth s surface) that is so far apart from the earthing electrodes that, if a current is diverted into the ground, no relevant voltage differences occur between the points of this area. Remote Signalling Contact Remote signalling contacts belong to a circuit which is separated from the main circuit of the SPD. The disconnection device of the SPD and/or an operation indication are part of the same circuit. Remote Strikes Remote strikes cause surges with a considerable smaller energy content compared to close-up strikes. Residual Current Protective Device (RCD) Residual current protective devices disconnect the circuit if the residual current against earth exceeds a certain value. Residual Voltage Ures The residual voltage is the peak value of the voltage that appears between the terminals of an SPD during the flow of a discharge current or immediately after it. Short-circuit Withstand Capability The short-circuit withstand capability is the highest unaffected short-circuit current the surge protection device can withstand. Single-port SPD A single-port SPD is connected in parallel to the circuit to be protected. A single-port SPD may have separate input and output terminals, although, without any series impedance between them. Sparkover Voltage The sparkover voltage is the highest instantaneous value of the voltage at the terminals of an arrester, just before it is triggered. Specialist in Lightning Protection A specialist in lightning protection has a professional training, knowledge and expertise as well as knowledge of the corresponding regulations that allow him to assess the work assigned to him as well as to identify possible dangers. (To judge the professional training, one can also consider several years of working in the corresponding field.) Status Display The status display indicates the state of operation of an SPD. Surge Voltage A surge voltage is a voltage that puts people and/or technical equipment like conductors and devices at risk. It can permanently (overvoltage) or temporarily (surge voltage) occur between conductor and earth in error-free installations (in disconnected conductors as well). Surge-voltage Protection Device (SPD) A surge-voltage protection device limits transient surges and diverts impulse currents. It includes at least one non-linear component. Temperature Range The temperature range describes the lowest and highest temperatures that are allowed at or inside the housing. For devices without self-heating this range refers to the ambient temperature. For devices with self-heating it indicates the maximum operating temperature range. TOV Characteristics The TOV characteristics describe the behavviour of an SPD to which a temporary overvoltage (TOV) is applied for a certain period of time. Transient (noun) A transient is a non-periodic and very short positive or negative change of voltage or current between two steady states. transient A transient behaviour describes the behaviour of a phenomenon or value which changes between two consecutive steady states in a very short time in comparison to the considered timescale. Transverse Voltage The transverse voltage is the interference voltage which occurs between two conductors of the same circuit. Triggering Current of the Disconnection Device The triggering current of the disconnection device is the root-meansquare value of the current through the arrester, which causes the disconnection device to operate within 30 seconds. 10

13 Technological Details Technical Terms Triggering Triggering is referred to, if either the peak value of the ohmic component of the current through the arrester reaches 5 ma or a voltage drop caused by the rise of the peak value of the current through the arrester exceeds 5 ma. Varistors A varistor is a bipolar non-linear resistor with symmetrical voltagecurrent characteristics. Its resistance decreases with increasing voltage. Withstand Voltage The withstand voltage is the maximum voltage that can be applied to a current-limiting component of an SPD without affecting it. This voltage can be equal to the highest continuous operating voltage Uc of the SPD or higher, depending on the components inside the SPD. 100 % Lightning Impulse Sparkover Voltage The 100 % lightning impulse sparkover voltage is the voltage where the lightning impulse voltage 1.2/50 μs triggers the arrester. For some configurations, e.g. varistors, it is not possible to measure this value. Abbreviations CCP Cathodic Corrosion Protection CCPS Cathodic Corrosion Protection System EBS Equipotential Bonding Strip ESD Electrostatic Discharge FM Remote Signalling Contact (Changeover Contact) FS Fail-safe GDT Gas-Filled Surge Arrester LEMP Lightning Electromagnetic Impulse LPL Lightning Protection Level LPMS LEMP Protection Measures System LPS Lightning Protection System LPZ Lightning Protection Zone MBC Miniature Circuit Breaker MOV Metalloxyd Varistor PK Potential-free Contact (Break Contact) RCD Residual Current Device SEMP Switching Electromagnetic Pulse SEP Single Entry Point SPD Surge Protective Device SSCT Solderless and Screwless Connection Technology SVE Surge Voltage Protection Equipment SVP Surge Voltage Protector TAB Technical Connection Requirements for Electrical Power Installations TOV Temporary Overvoltage VDEW Vereinigung deutscher Elektrizitätswerke e.v. (German Association for the Power Supply Industry) VdS Verband der Sachversicherer (Property Insurer Association) Product Abbreviations DP DataPro EP EnerPro EPF EnerProFilter IP IsoPro IPD IsoProData PP PowerPro SP SumPro 11

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15 Overvoltage Protection for Power Engineering Product Overview on Page 24 13

16 Overview of SPD Wiring F1 TN-S system type 1 (T1+T2+T3) L1 L2 L3 N PE F2 PAS TN-S system type 2 (T2) L1 L2 L3 N PE F1 F2 PAS 14

17 Overview of SPD Wiring TN-C system type 1 (T1+T2+T3) L1 L2 L3 PEN F1 F2 PAS TN-C system type 2 (T2) L1 L2 L3 PEN F1 F2 PAS 15

18 Overview of SPD Wiring TT system type 1 (T1+T2+T3) L1 L2 L3 N F1 L1 L2 L3 N PE F2 PAS F1 TT system type 2 L1 L2 L3 N L1 L2 L3 N PE F2 L1 L2 L3 PE N 16

19 Overview of SPD Wiring IT system 230 V ac type 1 (T1+T2) IT system 230 V ac type 2 L L F1 L L PE L L F1 L L PE F2 F2 PAS F1 IT system 500 V ac type 2 L1 L2 L3 L1 L2 L3 PE F2 17

20 Selection Guide: Surge Voltage Protection in Power Supply System Description Product examples 3-phase power supply TN-S/TT TN-C 3-phase power supply separate N and PE 3-phase power supply common PEN single-phase power supply TN-S/TT TN-C single-phase power supply separate N and PE single-phase power supply common PEN 3-phase IT 3-phase power supply without N singlephase IT single-phase power supply without N Power supply for terminal equipment TN-S/TT 3-phase TN-S/TT 1-phase 3-phase power supply for terminal equipment without N and PE single-phasige power supply for terminal equipment separate N and PE 18

21 Product name Item no. Class I combined modular arrester Class II surge voltage arrester Class III surge voltage arrester Follow-on current extinguishing V-wiring Protection for terminal equipment Installation upstream to the meter Hermetically sealed spark gaps Visual fault/function indicator Function control indication via LED SPD and EMI filter Page PP BCD TNS 25/ X X X X X X 28 PP BCD TT 25/ X X X X X X 29 EP C S TNS X X 89 EP C S TT X X 91 PP BCD TNC 25/ X X X X X X 27 EP C S TNC X X 88 EP C TNC X X 78 PP BCD TN 25/ X X X X X X 32 EP C S TN X X 87 EP C TN X X 77 PP BCD TT1+1 25/ X X X X X X 33 EP C S TT X X 90 EP C TT X X X 80 IP BC X X X 50 EP C S T X X 98 PP BCD TT 25/ X X X X X X 29 3 x EP C S T X X 99 PP BCD TT / X X X X X X 30 2 x EP C S T X X 99 EP D T NS X X X 107 EP D TT X X X 110 EP D TN X X X 105 EP D TT X X X 108 EPF 230V/16A X X X X

22 Quick Selection of Products Product Version Rated voltage U c Discharge Cap. I imp (10/350) Protectionlevel U p Follow-on current exting. cap. I fi Remote contact Max. back-up fuse A gl/gg Class I combined modular arrester ( T1+T2+T3 ), follow-on current extinguishing capability PP BCD TNC 25/75 3-pole 255 V 75 ka < 1.0 kv 4 ka MW PP BCD TNC 25/75/FM 3-pole 255 V 75 ka < 1.0 kv 4 ka 3 NC MW PP BCD TNC 25/ pole 350 V 75 ka < 1.0 kv 4 ka MW PP BCD TNC 25/75/FM pole 350 V 75 ka < 1.0 kv 4 ka 3 NC MW PP BCD TNS 25/100 4-pole 255 V 100 ka < 1.0 kv 4 ka MW PP BCD TNS 25/100/FM 4-pole 255 V 100 ka < 1.0 kv 4 ka 4 NC MW PP BCD TNS 25/ pole 350 V 100 ka < 1.0 kv 4 ka MW PP BCD TNS 25/100/FM pole 350 V 100 ka < 1.0 kv 4 ka 4 NC MW PP BCD TT 25/100 4-pole 255 V 100 ka < 1.0 kv 4 ka MW PP BCD TT 25/100/FM 4-pole 255 V 100 ka < 1.0 kv 4 ka 3 NC MW PP BCD TT 25/ pole 350 V 100 ka < 1.0 kv 4 ka MW PP BCD TT 25/100/FM pole 350 V 100 ka < 1.0 kv 4 ka 3 NC MW PP BCD TT2+1 25/100 3-pole 255 V 100 ka < 1.0 kv 4 ka MW PP BCD TT2+1 25/100/FM 3-pole 255 V 100 ka < 1.0 kv 4 ka 2 NC MW Class I combined modular arrester ( T1+T2 ), follow-on current extinguishing capability PP BC TNC 25/75 3-pole 255 V 75 ka < 2.5 kv 4 ka MW PP BC TNC 25/75/FM 3-pole 255 V 75 ka < 2.5 kv 4 ka 3 NC MW PP BC TNC 25/ pole 350 V 75 ka < 2.5 kv 4 ka MW PP BC TNC 25/75/FM pole 350 V 75 ka < 2.5 kv 4 ka 3 NC MW PP BC TNC pole 440 V 75 ka < 2.5 kv 4 ka MW PP BC TNC 440/FM 3-pole 440 V 75 ka < 2.5 kv 4 ka 3 NC MW PP BC TNS 25/100 4-pole 255 V 100 ka < 2.5 kv 4 ka MW PP BC TNS 25/100/FM 4-pole 255 V 100 ka < 2.5 kv 4 ka 4 NC MW PP BC TNS 25/ pole 350 V 100 ka < 2.5 kv 4 ka MW PP BC TNS 25/100/FM pole 350 V 100 ka < 2.5 kv 4 ka 4 NC MW PP BC TT 25/100 4-pole 255 V 100 ka < 2.5 kv 4 ka MW PP BC TT 25/100/FM 4-pole 255 V 100 ka < 2.5 kv 4 ka 3 NC MW PP BC TT 25/ pole 255 V 100 ka < 2.5 kv 4 ka MW PP BC TT 25/100/FM pole 255 V 100 ka < 2.5 kv 4 ka 3 NC MW Class I combined modular arrester ( T1+T2 ), No follow-on current extinguishing capability IP BC TNC 25/75 3-pole 255 V 75 ka < 2.5 kv MW IP BC TNC 25/75/FM 3-pole 255 V 75 ka < 2.5 kv 3 NC MW IP BC TNC 25/ pole 350 V 75 ka < 2.5 kv MW IP BC TNC 25/75/FM pole 350 V 75 ka < 2.5 kv 3 NC MW IP BC TNS 25/75 4-pole 255 V 100 ka < 2.5 kv MW IP BC TNS 25/75/FM 4-pole 255 V 100 ka < 2.5 kv 4 NC MW IP BC TNS 25/ pole 350 V 100 ka < 2.5 kv MW IP BC TNS 25/75/FM pole 350 V 100 ka < 2.5 kv 4 NC MW IP BC TT 25/75 4-pole 255 V 100 ka < 2.5 kv MW IP BC TT 25/75/FM 4-pole 255 V 100 ka < 2.5 kv 3 NC MW IP BC TT 25/ pole 350 V 100 ka < 2.5 kv MW IP BC TT 25/75/FM pole 350 V 100 ka < 2.5 kv 3 NC MW Compact class I combined modular arrester ( T1+T2 ), No follow-on current extinguishing capability IPK BC TNC pole 255 V 15 ka < 2.5 kv MW IPK BC TNC 275/FM 3-pole 255 V 15 ka < 2.5 kv 3 NC MW IPK BC TNC pole 350 V 15 ka < 2.5 kv MW Constr. width Item no. Page 20

23 Product Version Rated voltage U c Discharge Cap. I imp (10/350) Protectionlevel U p Follow-on current exting. cap. I fi Remote contact Max. back-up fuse A gl/gg IPK BC TNC 350/FM 3-pole 350 V 15 ka < 2.5 kv 3 NC MW IPK BC TNS pole 255 V 20 ka < 2.5 kv MW IPK BC TNS 275/FM 4-pole 255 V 20 ka < 2.5 kv 4 NC MW IPK BC TNS pole 350 V 20 ka < 2.5 kv MW IPK BC TNS 350/FM 4-pole 350 V 20 ka < 2.5 kv 4 NC MW IPK BC TT pole 255 V 20 ka < 2.5 kv MW IPK BC TT 275/FM 4-pole 255 V 20 ka < 2.5 kv 3 NC MW IPK BC TT pole 350 V 20 ka < 2.5 kv MW IPK BC TT 350/FM 4-pole 350 V 20 ka < 2.5 kv 3 NC MW Class I lightning current arrester ( T1 ), follow-on current extinguishing capability PP B TNC 50/100 3-pole 255 V 75 ka < 4.0 kv 4 ka MW PP B TNC 50/100/FM 3-pole 255 V 75 ka < 4.0 kv 4 ka 3 NC MW PP B TNC 50/ pole 350 V 75 ka < 4.0 kv 4 ka MW PP B TNC 50/ /FM 3-pole 350 V 75 ka < 4.0 kv 4 ka 3 NC MW PP B TNC pole 440 V 75 ka < 4.0 kv 4 ka MW PP B TNC 440/FM 3-pole 440 V 75 ka < 4.0 kv 4 ka 3 NC MW PP B TNS 50/100 4-pole 255 V 100 ka < 4.0 kv 4 ka MW PP B TNS 50/100/FM 4-pole 255 V 100 ka < 4.0 kv 4 ka 4 NC MW PP B TNS 50/ pole 350 V 100 ka < 4.0 kv 4 ka MW PP B TNS 50/ /FM 4-pole 350 V 100 ka < 4.0 kv 4 ka 4 NC MW PP B TNS pole 440 V 100 ka < 4.0 kv 4 ka MW PP B TNS 440/FM 4-pole 440 V 100 ka < 4.0 kv 4 ka 4 NC MW PP B TT 50/100 4-pole 255 V 100 ka < 4.0 kv 4 ka MW PP B TT 50/100/FM 4-pole 255 V 100 ka < 4.0 kv 4 ka 3 NC MW PP B TT 50/ pole 350 V 100 ka < 4.0 kv 4 ka MW PP B TT 50/ /FM 4-pole 350 V 100 ka < 4.0 kv 4 ka 3 NC MW Class I lightning current arrester ( T1 ) No follow-on current extinguishing capability IP B TNC 25/75 3-pole 255 V 75 ka < 4.0 kv MW IP B TNC 25/75 /FM 3-pole 255 V 75 ka < 4.0 kv 3 NC MW IP B TNS 25/100 4-pole 255 V 100 ka < 4.0 kv MW IP B TNS 25/100 /FM 4-pole 255 V 100 ka < 4.0 kv 4 NC MW IP B TT 25/100 4-pole 255 V 100 ka < 4.0 kv MW IP B TT 25/100 /FM 4-pole 255 V 100 ka < 4.0 kv 3 NC MW Constr. width Item no. Page Product Version Rated voltage U c Class II surge voltage arrester Nom. discharge current I n (8/20) Protectionlevel U p Max. discharge curr. I max (8/20) Remote contact Max. back-up fuse A gl/gg EP C S TN pole, separable 275 V 20 ka 1.2 kv 40 ka MW EP C S TN 275/FM 2-pole, separable 275 V 20 ka 1.2 kv 40 ka 1 NC MW EP C S TN pole, separable 350 V 20 ka 1.2 kv 40 ka MW EP C S TN 350/FM 2-pole, separable 350 V 20 ka 1.2 kv 40 ka 1 NC MW EP C S TNC pole, separable 275 V 20 ka 1.2 kv 40 ka MW EP C S TNC 275/FM 3-pole, separable 275 V 20 ka 1.2 kv 40 ka 1 NC MW EP C S TNC pole, separable 350 V 20 ka 1.2 kv 40 ka MW EP C S TNC 350/FM 3-pole, separable 350 V 20 ka 1.2 kv 40 ka 1 NC MW EP C S TNS pole, separable 275 V 20 ka 1.2 kv 40 ka MW EP C S TNS 275/FM 4-pole, separable 275 V 20 ka 1.2 kv 40 ka 1 NC MW EP C S TNS pole, separable 350 V 20 ka 1.2 kv 40 ka MW Constr. width Item no. Page 21

24 Quick Selection of Products Product Version Rated voltage Nom. discharge Protectionlevel Max. discharge Max. back-up Remote Constr. Item no. Page U c current I n (8/20) U p curr. I max (8/20) fuse A gl/gg contact width EP C S TNS 350/FM 4-pole, separable 350 V 20 ka 1.2 kv 40 ka changeovr 4 MW EP C S TT pole, separable 275 V 20 ka 1.2 kv 40 ka MW EP C S TT /FM 2-pole, separable 275 V 20 ka 1.2 kv 40 ka changeovr 2 MW EP C S TT pole, separable 350 V 20 ka 1.2 kv 40 ka MW EP C S TT /FM 2-pole, separable 350 V 20 ka 1.2 kv 40 ka changeovr 2 MW EP C S TT pole, separable 275 V 20 ka 1.2 kv 40 ka MW EP C S TT 275/FM 4-pole, separable 275 V 20 ka 1.2 kv 40 ka changeovr 4 MW EP C S TT pole, separable 350 V 20 ka 1.2 kv 40 ka MW EP C S TT 350/FM 4-pole, separable 350 V 20 ka 1.2 kv 40 ka changeovr 4 MW EP C S T 75 1-pole, separable 75 V 10 ka < 400 V 25 ka MW EP C S T 75/FM 1-pole, separable 75 V 10 ka < 400 V 25 KA changeovr 1 MW EP C S T pole, separable 130 V 15 ka < 600 V 40 ka MW EP C S T 130/FM 1-pole, separable 130 V 15 ka < 600 V 40 ka changeovr 1 MW EP C S T pole, separable 275 V 20 ka < 1.2 kv 40 ka MW EP C S T 275/FM 1-pole, separable 275 V 20 ka < 1.2 KV 40 ka changeovr 1 MW EP C S T pole, separable 440 V 15 ka < 2.0 KV 40 ka MW EP C S T 440/FM 1-pole, separable 440 V 15 ka < 2.0 KV 40 ka changeovr 1 MW EP C S T pole, separable 350 V 15 ka < 1.8 kv 40 ka MW EP C S T 350/FM 1-pole, separable 350 V 15 ka < 1.8 KV 40 ka changeovr 1 MW EP C S T pole, separable 550 V 15 ka < 2.5 kv 40 ka MW EP C S T 550/FM 1-pole, separable 550 V 15 ka < 2.5 kv 40 ka changeovr 1 MW SP C S NPE 1-pole, separable 275 V 20 ka 12 ka (10/350) 1 MW SP C S NPE/FM 1-pole, separable 275 V 20 KA 12 ka (10/350) 1 changeovr 1 MW Class II surge voltage arrester, leakage-current free EP C S TN 275 A 2-pole, separable 275 V 20 ka < 1.2 kv 25 ka MW EP C S TN 275 A/FM 2-pole, separable 275 V 20 ka < 1.2 kv 25 ka NC 2 MW EP C S TNC 275 A 3-pole, separable 275 V 20 ka < 1.2 kv 25 ka MW EP C S TN 275 A/FM 3-pole, separable 275 V 20 ka < 1.2 kv 25 ka NC 3 MW EP C S TNS 275 A 4-pole, separable 275 V 20 ka < 1.2 kv 25 ka MW EP C S TNS 275 A/FM 4-pole, separable 275 V 20 ka < 1.2 kv 25 ka NC 4 MW Class II surge voltage arrester, leakage-current free EP C TN pole 275 V 15 ka 40 ka MW EP C TN 275/FM 2-pole 275 V 15 ka 40 ka NC 2 MW EP C TN pole 350 V 15 ka 40 ka MW EP C TN 350/FM 2-pole 350 V 15 ka 40 ka NC 2 MW EP C TNC pole 275 V 15 ka 40 ka MW EP C TNC 275/FM 3-pole 275 V 15 ka 40 ka NC 3 MW EP C TNC pole 350 V 15 ka 40 ka MW EP C TNC 350/FM 3-pole 350 V 15 ka 40 ka NC 3 MW EP C TNS pole 275 V 15 ka 40 ka MW EP C TNS 275/FM 4-pole 275 V 15 ka 40 ka NC 4 MW EP C TNS pole 350 V 15 ka 40 ka MW EP C TNS 350/FM 4-pole 350 V 15 ka 40 ka NC 4 MW EP C TT pole 275 V 15 ka 40 ka MW EP C TT /FM 2-pole 275 V 15 ka 40 ka NC 2 MW EP C TT pole 350 V 15 ka 40 ka MW EP C TT /FM 2-pole 350 V 15 ka 40 ka NC 2 MW

25 Product Version Rated voltage Nom. discharge Protectionlevel Max. discharge Max. back-up Remote Constr. Item no. Page U c current I n (8/20) U p curr. I max (8/20) fuse A gl/gg contact width EP C TT pole 275 V 15 ka 40 ka MW EP C TT 275/FM 4-pole 275 V 15 ka 40 ka changeovr 4 MW EP C TT pole 350 V 15 ka 40 ka MW EP C TT 350/FM 4-pole 350 V 15 ka 40 ka changeovr 4 MW Class III surge voltage arrester, mounting rail modules EP D TN pole 275 V 5 ka < 1.0 kv 8 ka 16 1 MW EP D TN 275/FM 2-pole 275 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 1 MW EP D TNC pole 275 V 5 ka < 1.0 kv 8 ka 16 3 MW EP D TNC 275/FM 3-pole 275 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 3 MW EP D TNS pole 275 V 5 ka < 1.0 kv 8 ka 16 4 MW EP D TNS 275/FM 4-pole 275 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 4 MW EP D TT pole 275 V 5 ka < 1.0 kv 8 ka 16 2 MW EP D TT /FM 2-pole 275 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 2 MW EP D TT pole 275 V 5 ka < 1.0 kv 8 ka 16 3 MW EP D TT /FM 3-pole 275 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 3 MW EP D TT pole 275 V 5 ka < 1.0 kv 8 ka 16 4 MW EP D TT 275/FM 4-pole 275 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 4 MW Class III surge voltage arrester, mounting rail modules EP D TN 24V/16A 2-pole 30 V 5 ka < 1.0 kv 8 ka 16 2 MW EP D TN 24V/16A/FM 2-pole 30 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 2 MW EP D TN 48V/16A 2-pole 60 V 5 ka < 1.0 kv 8 ka 16 2 MW EP D TN 48V/16A/FM 2-pole 60 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 2 MW EP D TN 60V/16A 2-pole 75 V 5 ka < 1.0 kv 8 ka 16 2 MW EP D TN 60V/16A/FM 2-pole 75 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 2 MW EP D TN 120V/16A 2-pole 150 V 5 ka < 1.0 kv 8 ka 16 2 MW EP D TN 120V/16A/FM 2-pole 150 V 5 ka < 1.0 kv 8 ka 16 1 changeovr 2 MW EP D TN 230V/16A 2-pole 255 V 5 ka < 1.5 kv 8 ka 16 2 MW EP D TN 230V/16A/FM 2-pole 255 V 5 ka < 1.5 kv 8 ka 16 1 changeovr 2 MW Class III surge voltage arrester, adapter and flush-mounting versions EnerPro 220 Zw adapter plug/socket 220 V 5 ka < 1.2 kv CPS 230 Fax/Tel adapter plug/socket 230 V 5 ka 0.9 kv 10 ka CPS 230 ISDN adapter plug/socket 230 V 5 ka 0.9 kv 10 ka CPS 230 Network adapter plug/socket 230 V 5 ka 0.9 kv 10 ka CPS 230 SAT adapter plug/socket 230 V 5 ka 0.9 kv 10 ka NM 220V/5kA flush-mounting 230 V 5 ka < 1.0 kv 8 ka EnerPro 230 SDU flush-mounting 230 V 2, 5 ka < 1.5 kv 5 ka NM 220V/20kA flush-mounting 230 V 20 ka < 1.4 kv 20 ka 16 optionally EP D 230SM flush-mounting 230 V 2.5 ka < 950 V 6 ka SPD with EMI filter EPF 230V/25A-Tr DIN rail 25 ka 25 A 230 V EnerPro 24V-Tr DIN rail 20 ka 6 A 24 V EPF 60V/16A-S wall mounting 2-pole 25 ka 16 A 60 V EPF 230V/16A-W wall mounting 2-pole 25 ka 16 A 230 V EPF 230/400/35A-W wall mounting 4-pole 25 ka 35 A 230/400 V EPF 230/400/63A-E flush-mounting 4-pole 25 ka 63 A 230/400 V EPF 230/400/100A-E flush-mounting 4-pole 25 ka 100 A 230/400 V EPF 230/400/200A-E flush-mounting 4-pole 25 ka 200 A 230/400 V

26 Product Overview Class I+II+III (T1+T2+T3) Combined Arresters Class I+III (T1+T2) Combined Arresters Class I (T1) Lightning Current Arresters Class II (T2) Surge Arresters, leakage-current free Class II (T2) Surge Arresters, pluggable Class III (T3) Surge Arresters, leakage-current free Class II+III (T2+T3) Surge Arresters PowerPro BCD, TN-C, TN-S and TT Systems...25 PowerPro BCD, 2-pole...31 PowerPro BC, TN-C, TN-S and TT Systems...35 PowerPro BC, 2-pole...41 IsoPro BC, TN-C, TN-S and TT Systems...44 IsoPro BC, 1-pole IsoPro BC, 2-pole...51 IsoPro Kompakt BC, TN-C, TN-S and TT Systems...54 PowerPro B, TN-C, TN-S, TN, TT and IT Systems...59 IsoPro B, TN-C, TN-S and TT Systems...69 IsoPro B, 2-pole EnerPro C, TN-C, TN-S and TT Systems...76 EnerPro 280Tr EnerPro C S, TN-C, TN-S and TT Systems EnerPro C S A...92 EnerPro C S T...97 EnerPro C S T A Protective Modules for EnerPro C S EnerPro D TN-,, TN-C, TN-S and TT Systems EnerPro D, TN, 24 V up to 230 V/16 A Class III (T3) Surge Arresters, diverse Arresters for Cathodic Corrosion Protection Systems Arresters for Photovoltaic Installations DC Power Supply Arresters with EMI Filter up to 200 A Equipment Protection with Increased Discharge Capacity Pipeline Protection (Introduction) Total Package of Pipeline Protection (Application) Pipeline Protection (Products) Protection of PV Installations (Introduction) Complete Protection of PV Installations Protection of PV Installations (Products) EnerPro Filters (EPF) Housings Insulating Enclosures Aluminium Enclosures Accessories

27 Class I+II+III (T1+T2+T3) Combined Arresters PowerPro BCD, TN-C, TN-S and TT Systems All-in-one modular protection unit, ready for connection Rare-gas-filled spark gap, hermetically sealed Discharge capacity up to 100 ka (10/350 µs) High quenching of follow-on short-circuit currents High insulation resistance V-wiring with multi-functional terminals Maximum operational availability Protection level from < 0.75 kv up to 1.0 kv High TOV resistance No blow-out vents, thus, not requiring any safety clearance to other installations No leakage currents, thus, allowing installation upstream of power meters Optional remote signalling contact (FM) requiring no additional space Operates independently of atmospheric air pressure and ambient humidity Multi-pole combined modular arresters for the protection of low-voltage consumers installations in business and residential areas against surges caused by lightning or switching actions in the network. The installation place of the PowerPro BCD is the main distribution board upstream or downstream of the power meter. According to the lightning protection zones concept in IEC DIN EN part 1-4 (VDE ), it can universally be installed at the transition 0 A to 2. Due to their good insulation against earth of 10 GΩ and the fact that no leakage-current affected varistors (MOV) are connected in parallel, they even can be placed upstream of the meter according to the specifications of the German VDN (TAB 2007). Downstream equipment should additionally be protected by Leutron class III or class II+III SPDs. They are coordinated with the PowerPro BCD in a way that they can be installed without the need of a minimum distance. The rare-gas-filled combined modular arresters of the series PowerPro BCD reduce follow-on short-circuit currents to such an extend that a 35 A fuse would not operate and upstream positioned surge-current protection devices are not triggered. These SPDs of the series PowerPro BCD feature a high thermal resistance and a discharge capability for lightning impulse currents of 25 ka (10/350 µs) per pole. Therefore, they can confidentially be applied at all protection levels according to DIN EN (VDE ). The modular designed, multi-pole complete units are available for TN, TN-C, TN-S, TN-C-S and TT systems according to IEC (EN, VDE, OEVE, etc.) standards. They are shipped readyto-connect (on rail). They are also available for IT networks in country-specific versions with or without neutral conductor (N). Combined modular arresters of the series BCD offer a higher insulation level and lower investment and installation costs, due to their low voltage protection level of less than 1 kv at full discharge current. They are able to divert high lightning impulse currents and operate also at small, transient surges under different ambient conditions, reliably and without any problems. Even at a load of 3 to 5 ka the residual voltage remains below 650 V! Due to the application of the gas discharge technology the PowerPro BCD SPDs are resistant against temporary and long lasting overvoltages (TOV) up to 400 V (50 Hz). Leutron also offers a special version with a higher operating voltage. The units can universally be installed at all export countries with nominal system voltages of 200 to 260 V. The TT system version discharges the impulse current between L and N. Between N and PE a Leutron summation current spark gap SumPro with 100 ka (10/350µs) will be applied which corresponds to the highest lightning protection class I according to VDE (IEC DIN EN 62305). With back-up fuses or circuit-breakers of more than 250 A, a selective back-up fuse (fusible cutout) of max. 250 A has to be installed to avoid an overload of the IsoPro caused by a high short-circuit current. The pre-assembled, two-pole busbars at the terminals allow a serial V-wiring of the SPD to a back-up fuse up to 125 A. 25