— Arc Guard System™ – TVOC-2—C ATA LOG 201 9Arc Guard System™ – TVOC-2
ABB ARC GUARD SYSTEM™ - TVOC-2 13 Arc Guard System™ with communication module5 Introduction6 System description 7 Functionality8 Ordering details10 Technical dataApplications12 Basic installation tips13DiagramsConfiguration14 Trip condition configuration – Manual/auto reset configuration15 Current condition configuration16 Dimensions17 Circuit diagrams—Arc Guard System™ – TVOC-2Table of contents
ABB ARC GUARD SYSTEM™ - TVOC-2 3—Arc Guard System™ with communication moduleMonitor your installation, anytime and anywhereABB is a leader in electrical safety with the TVOC-2 Arc Guard System™ providing an unrivaled optical arc mitigation device with SIL-2 safety certification.The plug-in communication module provides operators real time status updates and instant information regarding the location of any arcs.Saving lives and minimizing damage to equipmentWith a market-leading reaction time of under 1 ms, TVOC-2 is already the fastest, most reliable arc guard solution available on the market. By adding the communication module, information regarding any trip travels faster, reaching the right people sooner.Keeping the business runningAn arc flash accident can have a catastrophic effect on equipment and lead to outages. The TVOC-2 detects the light from an arc flash and, together with the installed breaker, cutting the current feeding the arc extremely quickly, minimizing disruption of the system.Factory calibrated sensorsConfiguration of the TVOC-2 is done in minutes and with the HMI verifying every setting done, it is extremely unlikely that mistakes will happen during the configuration.With the possibility to accommodate up to 30 sensors, the system is highly flexible and can grow with any system.Easy to installContinuous operationSafetyand protection
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ABB ARC GUARD SYSTEM™ - TVOC-2 5—IntroductionReliability• Certified according to functional safety (SIL-2) standard• Over 40 years experience in Arc Guard Systems™ • Pre-calibrated optical sensorsFlexibility• With IP54 high protection degree, HMI (Human Machine Interface) can be mounted on the panel door• COM Module operates in the same way as HMI. With added ability to communicate with a remote station using Modbus RTU• Expandable with up to 30 optical sensors• Configure the system according to various needsSimplicity• User-friendly start-up menu• DIN-rail or wall-mounted• Easy to expand as the switchgear functions are addedTVOC-2, ABB's Arc Guard System™, builds on the well known TVOC design. Its functions and features improve an already great product, putting even more focus on reliabil-ity, flexibility and simplicity.Arc Guard System™ increases the protection of people and equipment, and minimizes unnecessary production stops. TVOC-2 is ABB's state-of-the-art solution for arc fault pro-tection in all applications, providing functional safety. With over 40 years of experience, Arc Guard System™ has become an industry standard in several key markets, helping to protect personnel and businesses around the world. Typical applications include all low- and medium-voltage switchgears.
6 ABB ARC GUARD SYSTEM™ – TVOC-2Short-circuit faults in LV and MV switchgears are often accompanied by an electric arc. An arc fault can leads to considerable damage to equipment and injury to personnel unless it is detected very quickly. To avoid serious damage and give the person involved a good chance of surviving the accident without severe injury, the fault should be disconnected as fast as possible, typically in less than 50 ms.The Arc Guard System™ quickly detects an arc fault and trips the incoming circuit-breaker. Using light as the main trip criteria, it trips almost instantaneously. Thanks to this key functional advantage, it overrides all other protections and delays, which is crucial when reaction times need to be measured in milliseconds.How it worksThe system acts in three phases:—System description 1 Detection The TVOC-2 detects the light from an arc flash 2 Recognition The system determines the intensity of light 3 ActionThe system sends signal to trip breaker(s)The diagram below shows how the exponential increase in energy over time affects different switchgear materials.Total clearing time = ABB Arc Guard System™ + breakerTot a l clearing time030-501001502007008009001 sec...0.2 sec Steel fire0.15 sec Copper fire0.1 sec Cable fireEnergy k A²s
ABB ARC GUARD SYSTEM™ - TVOC-2 7—FunctionalityArc monitorWith its modular concept, the Arc monitor is designed to fit all types and sizes of low- and medium-voltage switchgears.It is designed according to functional safety, and is SIL 2-certified according to IEC 61508 and IEC 62061 which puts full focus on reliability. This corresponds to performance level d according to EN ISO 13849-1. Safety functions are ex-clusively handled by hardware. In addition, the system, trip logs and user-interface are all microprocessor-monitored.The system can be configured to trip selected breakers, de-pending on which sensor that detects the light. The DIP-switches that take care of this function also handle settings like auto-reset and Current Sensing Units (see pages 12-13 for more details).Energy is stored in the unit for operation up to 0.2 s if the supply voltage fails. This is sufficient to close the tripping circuit even if voltage disappears at a short-circuit fault.Note: The circuit breaker still needs a back-up energy source for its tripping circuit. ConnectionsAll connections can be accessed from the front of the Arc Guard System™. Pluggable terminal blocks allow electrical wiring before mounting TVOC-2 into the cabinet. The solid state tripping contacts are type IGBT, which guar-antees fast and reliable tripping. More details can be found on page 8, technical data.HMI (Human Machine Interface)• Handles settings with key-pad and full text display• Holds error log and trip information after power loss• Error log and trip log include time/date stamp from a real-time clock• TVOC-2 can handle two separate HMIs (cabinet door and on product)• Three-meter cable included• COM Module available using Modbus RTUSensor & sensor modules• Fiber-optic sensors not affected by electrical noise• Pre-calibrated sensors remove need for manual configuration• Up to 30 detectors can be connectedCurrent Sensing Unit (optional)The Current Sensing Unit (CSU) is an accessory needed only in those few specific applications where strong light is expected on a regular basis. CSUs are connected with an optical fiber using light as signal for normal current. If this was removed by accident, the system would treat it as an over-current and trip if an arc flash is seen of reliability reasons. Adding a CSU will result in an additional operating time depending on the size of the over-current and the number of phases measured.Arc monitor3 IGBT solid state tripping contacts2 change-over trip signal relays1 change-over self supervision alarm relay (IRF)2 current sensing unit inputs1 current sensing unit outputMounting alternativesDIN-railWall mountingOptical detector inputs1-10 Main unit X1 1-10 Extension module X21-10 Extension module X3HMICan be mounted on doorIP54Additional HMI possibleUser-friendly start up menuCOM Module version available
8 ABB ARC GUARD SYSTEM™ – TVOC-2—Ordering detailsDescriptionRated supply voltageUcTy peOrder codeWeight (1 pce)V 50/60 HzV DCkgArc monitorincluding one HMI and door mounting accessories–24...48TVOC-2-481SFA664001R10020.95100...240100...250TVOC-2-2401SFA664001R1001including one COM Module and door mounting accessories–24...48TVOC-2-48-C1SFA664001R10040.95100...240100...250TVOC-2-240-C1SFA664001R1003AccessoriesDescriptionTy peOrder codeWeight (1 pce)kgExtension10 optical inputsTVOC-2-E11SFA664002R10010.1510 optical inputs for cable TVOC-2-DP60 onlyTVOC-2-E31SFA664002R30010.15HMI (Human Machine Interface)additional TVOC-2-H11SFA664002R10050.15COM Modulewith communication interface (Modbus RTU) and door mounting accessoriesTVOC-2-COM1SFA664002R40010.15DetectorsCable length1 mTVOC-2-DP11SFA664003R10100.022 mTVOC-2-DP21SFA664003R10200.024 mTVOC-2-DP41SFA664003R10400.046 mTVOC-2-DP61SFA664003R10600.608 mTVOC-2-DP81SFA664003R10800.8010 mTVOC-2-DP101SFA664003R11000.1015 mTVOC-2-DP151SFA664003R11500.1520 mTVOC-2-DP201SFA664003R12000.2025 mTVOC-2-DP251SFA664003R12500.2530 mTVOC-2-DP301SFA664003R13000.3060 m (1)TVOC-2-DP601SFA664003R36000.60(1) Only to be used with TVOC-2-E31SFC170004F0002Arc monitor with HMI1SFC170001V0001Arc monitor with COM Module1SFC170012F0001Extension unit1SFC170013F0001HMI1SFC170002V0001COM Module1SFC170011F0001Detector cable
ABB ARC GUARD SYSTEM™ - TVOC-2 9—Ordering detailsDescriptionTy peOrder codeWeight (1 pce)kgCurrent sensing unitCSU1SFA663002-A1.500Optical cable between TVOC-2 Arc monitor and Current Sensing Unit (CSU)Cable length0.5 mTVOC-1TO2-OP051SFA664004R20050.0101 mTVOC-1TO2-OP11SFA664004R20100.0102 mTVOC-1TO2-OP21SFA664004R20200.0204 mTVOC-1TO2-OP41SFA664004R20400.0406 mTVOC-1TO2-OP61SFA664004R20600.0608 mTVOC-1TO2-OP81SFA664004R20800.08010 mTVOC-1TO2-OP101SFA664004R21000.10015 mTVOC-1TO2-OP151SFA664004R21500.15020 mTVOC-1TO2-OP201SFA664004R22000.20025 mTVOC-1TO2-OP251SFA664004R22500.25030 mTVOC-1TO2-OP301SFA664004R23000.300Optical cable between two TVOC-2 Arc monitors (transfering CSU signal)Cable length0.5 mTVOC-2_OP051SFA664004R10050.011 mTVOC-2-OP11SFA664004R10100.012 mTVOC-2-OP21SFA664004R10200.024 mTVOC-2-OP41SFA664004R10400.046 mTVOC-2-OP61SFA664004R10600.068 mTVOC-2-OP81SFA664004R10800.0810 mTVOC-2-OP101SFA664004R11000.1015 mTVOC-2-OP151SFA664004R11500.1520 mTVOC-2-OP201SFA664004R12000.2025 mTVOC-2-OP251SFA664004R12500.2530 mTVOC-2-OP301SFA664004R13000.30Optical cable between two Current Sensing Units (CSUs)Cable length0.5 m1SFA663004R10050.011 m1SFA663004R10100.012 m1SFA663004R10200.024 m1SFA663004R10400.046 m1SFA663004R10600.068 m1SFA663004R10800.0810 m1SFA663004R11000.1015 m1SFA663004R11500.1520 m1SFA663004R12000.2025 m1SFA663004R12500.2530 m1SFA663004R13000.30Other accessoriesDescriptionTy peOrder codeWeight (1 pce)kgCable straps1 set incl. 50 pcsTVOC-2-MK11SFA664006R10010.10Mounting kit600 mm1SFA663006R10010.35800/1000 mm1SFA663006R10020.60Label1 set incl.10 pcs1SFA663005R10010.02Mounting bracket1 set incl. 5 bracket pcs and 10 cable strap pcs1SFA663006R10100.251SFC170003F0002CSU1SFC170017F0001Optical cable TVOC-2 – CSU1SFC170016F0001Optical cable TVOC-2 – TVOC-21SFC170010F0001Cable strap1SFC170010F0001Mounting kit1SFC170014F0001Label1SFC170015F0001Mounting bracket
10 ABB ARC GUARD SYSTEM™ – TVOC-2Optical inputs and outputOptical detectors10 inputs on Arc monitor10 inputs on Extension unit X2 (optional)10 inputs on Extension unit X3 (optional)Current signal from CSU2 inputs: X1.21, X1.22 (optical)Forward current signal to another Arc monitor1 output: X1.23 (optical)Breaker trip contacts (K4, K5, K6)Solid state tripping contacts3 NO solid state type IGBTRated voltage250 V AC / DCMake and carry for 0.2 s30 AMake and carry for 1 s 0.15% duty ration10 ABreaking capacity250 V1.5 AAC-15250 V1 ADC-13110 V3 ADC-1348 V3 ADC13Reinforced insulation between separate contactsVoltage drop 5 V 30 A, 3 V 3 A, 2 V 10 mA Off state current < 1 mA at 250 V 60 Hz Min. recommended load current 10 mASignal relay outputs (K2, K3)Manual or auto resetable2 CO gold-plated contactsRated voltage250 V AC / DCContinous carry Ith5 AMake and carry for 0.2 s30 AMake and carry for 3 s 10% duty ratio15 ABreaking capacity 250 V3 AAC-15250 V0.3 ADC-13110 V0.6 ADC-1348 V2 ADC-13Reinforced insulation between separate contactsIth = 5 A Min switching load: 1 mA at 5 V DC with contacts not used for switching current > 0.5 A if inductive/capacitive load before.Internal Relay Fault (IRF) signal (K1)Self supervision alarm relay1 CO gold-plated contactRated voltage250 V AC/DCContinuous carry, Ith5 AMake and carry for 3 s8 ABreaking capacity 250 V1.5 AAC-15250 V0.15 ADC-13110 V0.3 ADC-1348 V0.5 ADC-13Reinforced insulation between separate contactsIth = 5 A Min switching load: 1 mA at 5 V DC with contacts not used for switching current > 0.5 A if inductive/capacitive load before—Technical data
ABB ARC GUARD SYSTEM™ - TVOC-2 11—Technical dataSettings and indicationsConnections for HMI on base module1 output RJ45 male at front side 1 output RJ14 female at right sideDisplay on HMI52 x 26 mm graphic LCD with LED backlightKeyboard on HMIMembrane buttons, 4 soft keysLED signal on HMIPower, Trip, ErrorLED signal on Arc monitor and extension unitsPowe r, Tr ipConfiguration switches8-pole DIP-switch on Arc monitor frontSettings (HMI)Time and display languageCOM Module versionModbus RTU protocolConfiguration (DIP switches)Manual or auto reset of K2 and K3 Use of CSU or not Trip configurationDisplay informationTrip log, connected modules, actual configuration self diagnostic test result and error logPower supplyTVOC-2-240TVOC-2-48Rated supply voltage, Us100-240 V AC, 50-60 Hz 100-250 V DC24 - 48 V DC Possibility to connect two power supplies for redundancy. (Common minus)Us variationAC -20% – +10% DC -25% – +30%DC -25% - +30%Rated insulation voltage, Ui250 V with reinforced insulation250 V with reinforced insulationRated impulse withstand Voltage Uimp 4 kV4 kV Main MCB/fuseMax. 10 A char. C/fuse 10 A gGMax 6A, MCB ABB Type S202 Z6APower consumption5 W5WStart-up timeTrip possible < 15 ms from power on< 100 ms from power onReaction timeFrom light detection to trip (contacts K4, K5, K6)Approx. 1 ms (depends on light intensity)From light detection to indication signal (relay K2, K3)< 10 msCurrent condition from input to output< 0.4 msEnvironmental conditionsAltitudeLess than 2000 m above sea level.Permissible ambient temperature-25 to +55°CDegree of protectionIP20 Arc monitor IP54 HMI front sideDetector cableMaximum length30 m with Arc monitor and extension – E1 60 m with extension – E3Service temperature range-25 to +70°C continuous -25 to +85°C short-timeSmallest permissible bending radius45 mm after installation 10 mm on handlingAcceptable backlight intensity light without tripping3000 LuxOptical cableMaximum length30 mStandards UL508Industrial control equipmentCSA C22.2 No.14Industrial control equipmentIEC 61508Functional safety of electrical/electronic/programmable electronic safety-related systemsIEC EN60947-1Low voltage switchgear and controlgear – Part 1: General rulesIEC EN60947-5-1Low voltage switchgear and controlgear – Part 5-1: Control circuit devices and switching elements - Electromechanical controlIEC 61010-1Safety requirements for electrical equipment for measurement, control and laboratory use
12 ABB ARC GUARD SYSTEM™ – TVOC-2—ApplicationsBasic installation tipsArc monitor (TVOC-2)The Arc monitor can be mounted anywhere in the switchgear, e.g. in the breaker cubicle or in a separate control cabinet. Tripping is handled by a separate tripping circuit. The task of the Arc monitor is to close the circuit very quickly. You can connect up to 3 breakers in this way and, if required, trip different breakers depending on where the arc occurs. CSU (Current Sensing Unit)The CSU is an accessory used if you cannot prevent direct sunlight or other highly intensive light reaching the sensors frequently. CSUs can be mounted in series if more than two are needed. Connection of current transformers (for CSU)The CSU measures either 1, 2 or 3-phase. Three-phase is, however, preferable for reasons of safety and reliability. Current transformers with a secondary current of 1, 2 or 5 A are used for this purpose.Note: Current transformers for relay protection are preferable since they do not saturate as quickly as standard current transformers. The transformers should not saturate before at least twice the set over-current level.DetectorsDetector cables are available in standard lengths (see ordering details). They cannot be cut or joined. Avoid sharp bends or pinching when installing the cables. The plastic fiber is made of polymethylene acrylate (PMMA) with a polyethylene jacket . Each detector consists of an optical cable and a lens that are calibrated together to give the same sensitivity independent of cable length. The detector has a plug-in connector that fits the Arc monitor. The lens collects light from all directions, with the exception of a small shaded area behind the detector (see the polar diagram). Practical experiments have shown that arc light reflected between metallic surfaces is normally sufficient to cause tripping.Detector positioningThe basic strategy for positioning the sensors is to make sure to cover all parts that may suffer from an arc. Typically this involves the horizontal and vertical bus bar system and the breaker cubicle. If possible, it's also normally preferable to supervise each cubicle. Avoid placing the detector so that it sees the normal light from a breaker. The sensor can detect arcs within a 3-meter distance (see illustration). To raise the safety level even higher, you can separate them at a 1.5-meter distance, thereby creating redundancy between them.F11A1DQ1Arc Guard System™ with Arc monitorF11F21A1T1Q1Arc Guard System™ with Arc monitor and Current Sensing UnitA1 SwitchgearF11 Arc monitorF21 Current Sensing UnitT1 Current transformerQ1 Circuit-breakerPolar diagram of detectorExample showing the position of detectors in:1. Horizontal and vertical bus bar system2. Circuit-breaker cubicle
ABB ARC GUARD SYSTEM™ - TVOC-2 13—ApplicationsDiagramsExample 1:Arc Guard System™ installed to trip all breakers in case of an arc.SA1... SA3SwitchgearK4, K5Solid state tripping contactsQ1, Q2Circuit-breakerD1...D4DetectorsSA1... SA4SwitchgearK4, K5, K6Solid state tripping contactsQ1, Q2Circuit breakerQ3Bus couplerD1...D9DetectorsExample 2:Arc Guard System™ installed to trip different breakers depending on where the arc occurs.
14 ABB ARC GUARD SYSTEM™ – TVOC-2—ConfigurationTrip condition configuration – Manual/auto reset configurationTrip condition configurationTVOC-2 can be configured to trip selected breakers depending on which detector is signalling for an arc. This can be used to trip sections of a switchgear or use one monitor for several small switchgears. It also has an option to add a current condi-tion, see page 13.Manual/auto reset configurationThe signal relays K2, K3 can be configurated to react as the trip contacts (auto reset) or to be de-energized by manual reset on the HMI. See below for explanation.System configuration using DIP switchDIP switches are used to configure the system regarding use of current condition (activated CSU inputs) and assigning detectors to breaker trip outputs (so-called selectivity). They are located on the front (low, left) of the Arc monitor.DIP switchesSw1Current condition inputs Terminals X1:21-22Sw5Not usedSw2Current condition output Terminal X1:23Sw6Autoreset K2, K3 (signal relays)Sw3Trip output assignSw7Not usedSw4Trip output assignSw8Not usedBreaker trip outputDetector inputsOutput relay K4Terminals X1:1-10Output relay K5Terminals X2:1-10Output relay K6Terminals X3:1-10
ABB ARC GUARD SYSTEM™ - TVOC-2 15—ConfigurationCurrent condition configurationNormal trip configuration with additional current conditionA current condition is an option that could be used to avoid the risk of nuisance tripping due to strong light from other sources than arcs. The main risks are light from arc chutes and direct sunlight, which in normal cases can be avoided. There-fore the standard configuration is without CSUs (Current Sensing Units).All trip configurations on page 12 can be combined with an additional current condition. It is possible to connect up to two CSUs directly to the Arc monitor (AM) (input 21 and 22). To connect additional current sensing units in series is also possible if required. To share the current condition between different Arc monitors can be done by connecting output 23 on the first Arc monitor to the standard CSU input on the other. The Arc monitor will then block the trip condition until it sees an over current.AM (Arc monitor)Special trip configuration depending on over currentThe arc monitor has a special trip configuration that determines trips depending on where it sees the over current. This con-figuration will then trip different breakers depending on which supply is showing an over current.DIP switches 1, 2, 3 and 4 to position ONSee manual for more details
16 ABB ARC GUARD SYSTEM™ – TVOC-2—DimensionsCurrent Sensing UnitA flange with 6 tapped holes (size 18.6 mm), 4 cable glands (sealing diameter 5.5-8.5 mm), and 2 plastic blank plugs are supplied.ø 5.8 0.23"146 5.75"20 0.79"15 0.59"68 2.68"170 6.69"170 6.69"65 2.56"215 8.46"52.5 2.07"Pg 11 0.43"Arc monitorDetector with optical cableø2.2 0.09"ø10 0.39"20 0.79"12 0.47"ø8 0.31"30.5 1.20"ø3 0.12" 5.8 0.23"HMI, COM Module130 5.12"15 0.59"82 3.23"M25 0.98"ø 25.5 1.00"16.5 0.65"198 7.80"38.5 1.52"77 3.03"177 6.97"14.7 0.58"ø5.5 0.22"49.5 1.95"230 9.06"12 0.47" x 13.9 0.55"Dimensions (mm, inches)187.5 7.38"217 8.54"For M5 0.20"
ABB ARC GUARD SYSTEM™ - TVOC-2 17—Circuit diagramsCurrent Sensing UnitArc monitor236364535443443132342122241112147374B&U > 0AX1.X2.222110981-10IGBT K6 TripIGBT K5 TripIGBT K4 TripRelay K3 TripRelay K2 TripRelay K1 Trip765432110987654321X3.109876543211-101-10TripI >IRFA1+A3+A2-PE236364535443443132342122241112147374B&U > 0AX1.X2.222110981-10IGBT K6 TripIGBT K5 TripIGBT K4 TripRelay K3 TripRelay K2 TripRelay K1 Trip765432110987654321X3.1098765A1PEA2NL143211-101-10TripI >IRF1SFA6641001R1002 1SFA664001R1001 TVOC-2-48 1SFA6641001R1002 236364535443443132342122241112147374B&U > 0AX1.X2.222110981-10IGBT K6 TripIGBT K5 TripIGBT K4 TripRelay K3 TripRelay K2 TripRelay K1 Trip765432110987654321X3.109876543211-101-10TripI >IRFA1+A3+A2-PE236364535443443132342122241112147374B&U > 0AX1.X2.222110981-10IGBT K6 TripIGBT K5 TripIGBT K4 TripRelay K3 TripRelay K2 TripRelay K1 Trip765432110987654321X3.1098765A1PEA2NL143211-101-10TripI >IRF1SFA6641001R1002 1SFA664001R1001 TVOC-2-240 1SFA664001R1001Arc monitorTe rmi n a l sX1 1-10 Detector inputX2 1-10Extra detector unit detector input (option)X3 1-10Extra detector unit detector input (option)A1, A2Power supplyTVOC-2-48: A1, A2, A3Power supplyPEPower supply43, 44Solid-state contacts53, 54Solid-state contacts63, 64Solid-state contacts11, 12, 14Indication contacts21, 22, 24Indication contacts31, 32, 34Indication contactsCurrent Sensing UnitTe rmi n a l s1 ... 6Current transformer terminals7 and 8Output current signal to another Current Sensing Unit or Arc monitor9Input current signal from another Current Sensing UnitPower supply terminals10 and 1224 V DC11 and 1260 V DC11 and 1248 V DC Interconnection 11-1313 and 12110 V - 125 V AC / DC14 and 12220 V DC, 230 V ACA) Testing facilities:R29Simulating a test currentS11 = Test position 2 = Operation positionV22RedON = S1 in test position OFF = S1 in operation positionB) Setting facilities:R21Overcurrent settingS21 = Input 9 not used 2 = Input 9 usedV27Ye llowON = Load current less than 70% of set overcurrent level OFF = Load current more than 70% of overcurrent levelV29GreenON = Load current less than set overcurrent level OFF = Load current more than set overcurrent levelX) Current range bridge connections1A:24-17, 25-20, 26-232A:24-16, 25-19, 26-225A:24-15, 25-18, 26-21
We reserve the right to make technical changes or modify the contents of this document without prior notice. ABB does not accept any responsibility whatsoever for po-tential errors or possible lack of information in this docu-ment.We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduc-tion, disclosure to third parties or utilization of its con-tents – in whole or in parts – is forbidden without prior written consent of ABB.Copyright© 2019 ABB - All rights reserved1SFC170001C0201_revJ - Printed in France (01.2019 PDF)ABB ABElectrification Products DivisionLow Voltage Products and SystemsSmart Power Motorgränd 20SE-721 61 Västerås / SwedenYou can find the address of your local sales organisation on the ABB home page.http://www.abb.com/lowvoltagehttp://new.abb.com/low-voltage/products/arc-guard
