Circuit Breakers SF 1 To 40.5 KV SF6 Switchgear
Circuit breakersSF1 to 40.5 kVSF6 switchgearWe do more with electricity.
SFcircuit breakers1 to 40.5 kVcontentspageSF6 gasthe universal technology2for medium voltagethe switchgear manufacturers’ gas3breaking techniqueauto-compression technique4operating5generala high-performance6and reliable rangecertified quality: ISO 90017electrical characteristics8descriptionSF1 circuit breaker10SFset circuit breaker11SF2, ISF2, circuit breaker12auxiliaries13operating mechanismsand diagramsSF1/SFset circuit breaker14SF2 circuit breaker16protection and control/monitoringprotection units18VIP13 protection unit20VIP17 protection unit21VIP200/VIP201 control units22time/current curves25dimensionsSF1, SFset28SF2, ISF230identification of unitsexamples of rating plates,31inspection sheetorder information32Schneider ElectricGammeAC0415EN 001 007.fm/
0SF circuit breakers, 1 to 40.5 kVSF6 gasthe universal technology for medium voltagemastering difficult currentsThe absence of overvoltages is one of thenumerous advantages of the SF6 breakingtechnique, eliminating the need for arrestingdevices to reduce switching surges.Short-circuit currentsThe short duration of the arc in the breakingchamber and the rapid recovery of the SF6dielectric properties enable SF6 switchgearto break fault currents up to 50 kA rms.Capacitive currentsSF6 switchgear does not provoke multiplerestrikes. Capacitive currents (lines,unloaded cables, capacitor banks) cantherefore be interrupted without creatingovervoltages that could damage equipmentconnected to the network.Low inductive currentsUsing the SF6 breaking technique, thechopping current, resulting from theinstability of the arc at low currents, isreduced to a very low level. Thecorresponding overvoltage is thereforeconsiderably reduced to a level that cannotdamage equipment.Numerous tests carried out in national andinternational laboratories have shown thatmultiple restrikes (opening) or prestrikes(closing) do not occur with SF6 switchgear.SF6 switchgear ensures surge-freebreaking, eliminating successive dielectricbreakdowns and the need for surgearresting devices.the experience of a majormanufacturerGiven its pioneer work in the puffer-type SF6technique, Merlin Gerin naturally played adecisive role in developing furtherapplications of the technique.Merlin Gerin is today one of the foremostmanufacturers of SF6 switchgear, with:# more than twenty years of industrialexperience using SF6 techniques,# more than 500 000 switchgear unitsinstalled around the world,It has developed a wide range of highperformance and reliable units, operatingfaultlessly on all five continents.The company continuously innovates toimprove performance levels. In 1989, itintroduced a product based on a newconcept, the SFset circuit breaker withintegrated protection functions.SF6 switchgear is thus capable of meetingthe most demanding requirements of publicand industrial distribution networks worldwide, up to 40.5 kV.C0415EN 001 007.fm/2GammeSchneider Electric
0the switchgear manufacturers’ gasFFFFSa widely available gassealed pressure systemLike all gases in current use, SF6 isavailable in all countries of the world.SF6 is non-toxic.All Merlin Gerin switchgear is of the sealedpressure system type in accordance with theIEC 56 definition (appendix EE).Enclosures are filled to a low relativepressure of 0.05 to 0.35 MPa (0.5 to3.5 bars).The seal and the for-life lubrication of therotary seals is provided by an oil film.In the MV circuit breaker field, for example,on more than 20 000 SF6 switchgear unitsinstalled by the French electrical utility(EDF), the annual fault rate related to sealproblems is less than 0.05 %.a non-inflammable gasSF6 is an inert gas and does not sustaincombustion.a very stable gasFFThe high stability of SF6 gas is due to the6 covalent bonds of its molecule.an insulating gasThe dielectric strength of SF6 is superior tothat of most known media, reaching 5 timesthat of air at a pressure of a few tenthsof MPa.a breaking gasSF6 is "the" breaking gas offering a numberof advantages:# high capacity for carrying the heatproduced by the arc. The arc is rapidlycooled by convection during arcing;# high radial thermal conduction andhigh electron capturing capacity;when the current passes through zero:5 the SF6 permits rapid heat exchange fromthe centre of the arc towards the exterior,5 the fluorine atoms, which are highlyelectro-negative, act as veritable "traps" forelectrons; since it is the electrons which aremainly responsible for electric conduction inthe gas, the gap between the contactsrecovers its initial dielectric strength throughthis electron capture phenomenon at currentzero.enduranceThe mechanical and electrical endurance ofMerlin Gerin SF6 switchgear is far abovethat recommended by the IEC.This equipment meets the needs of powernetworks, even those operating under themost severe conditions.very low maintenanceThe electrical contacts, housed in a sealedfor-life enclosure, require no specialmaintenance.The operating mechanism requires onlyminimum maintenance at intervalsdepending on the conditions of use.Under normal operating conditions, nopreventive maintenance is required before10 000 operations or 10 years of service.anticipated service life:more than 30 yearsThe breaking system is designed to operatewithout maintenance for many years with inparticular:# no need for any SF6 refilling throughoutthe service life of the unit, thanks to SF6 gasrecombination after breaking,# no continuous pressure monitoring.insensitivity to theenvironmentIn addition to the active parts (for breaking),the sealed enclosure contains the essentialmechanical parts (for mechanicaltransmission).The result is a fully insulated system.Furthermore, the long creepage distances ofthe insulated enclosures contribute to highinsensitivity to the outside environment.Schneider ElectricGammeAC0415EN 001 007.fm/
0SF circuit breakers, 1 to 40.5 kVbreaking techniqueauto-compression technique1234567812345678910111213141516Upper current terminal.Insulating enclosure.Fixed main contact.Fixed arcing contact.Moving arcing contact.Insulating nozzle.Moving main contact.Moving piston.Pressure chamber.Lower current terminal.Connecting rod.Crank.Sealing system.Shaft.Molecular sieve.Bottom cover.910pole-unit descriptionThe SF pole unit consists of:# a main circuit with:5 upper current terminal (1),5 fixed main contact with self-wiping blades(3),5 moving main contact (7),5 lower current terminal (10);# a breaking circuit with:5 fixed arcing contact (4),5 moving arcing contact (5);# an auto-compression system with:5 pressure chamber (9),5 moving piston (8),5 insulating nozzle (6);# a transmission mechanism with:5 shaft (14),5 crank (12),5 connecting rod (11);# a sealing system (13) of the "sealedpressure system" type according to thedefinition in IEC 56 appendix EE;# an insulating enclosure (2) containing allthe active components, including:5 SF6 at low relative internal pressure,5 molecular sieve (15),5 bottom cover (16).11principleSimplicityThe movement of the arcing contactscompresses a small volume of gas behind apiston. The compressed gas is trapped andcannot escape between the arcing contactsuntil they begin to separate.This pre-compression stage produces aninstantaneous difference in pressure makingit possible to inject the gas by forcedconvection.EfficiencyInjection of a small quantity of gas betweenthe contacts suffices to “ smother ” the arcby electron capture. This technique breakslow currents and short-circuit currents withequal effectiveness.Clogging effectDuring breaking of heavy currents, thecross-section of the arc is equal to that ofthe inside of the injection nozzle at fullbreaking capacity, which considerablyreduces the flow of the injected gas. That isthe clogging effect.The phenomenon has two beneficial results:# storage, before the current passes throughzero, of almost all the compressed gas;# limiting of the arcing energy by the brakingof the moving parts, thus limiting the lengthof the arc.Moreover, during breaking of low currents,the mass flowrate is reduced and breaking issurge-free.1213141516C0415EN 001 007.fm/4GammeSchneider Electric
0operationfig. 1SF6 circuit breakers use the SF6 autocompression technique.The main contacts and the arcing contactsare initially closed (fig. 1).Pre-compression (fig. 2)When the contacts begin to open, the pistonslightly compresses the SF6 gas in thepressure chamber.The arcing period (fig. 3)The arc then forms between the arcingcontacts. The piston continues its downwardmovement. A small quantity of gas, directedby the insulating nozzle, is injected onto thearc.For the breaking of low currents, the arc iscooled by forced convection.However, for high currents, thermalexpansion transfers the hot gases towardthe cold parts of the pole unit.Due to the dielectric properties of SF6, thegap between the two arcing contacts issufficient at the first current zero todefinitively interrupt the current.Sweeping overstroke (fig. 4)The moving parts finish their travel and theinjection of cold gas continues until thecontacts are completely open.fig. 2fig. 3fig. 4Schneider ElectricGammeAC0415EN 001 007.fm/
0SF circuit breakers, 1 to 40.5 kVgenerala high-performance and reliable rangewide choiceProgress and innovation in SF6 technologyhas led to a number of importantbreakthroughs in the field of MVswitchgear.The high performance levels and thereliability of Merlin Gerin circuit breakers arelargely a result of the remarkable propertiesof SF6 gas.The many ways of implementing SF6technology have led to a wide range ofswitchgear units.flexible installationSmall in size, SF6 switchgear is available ina number of versions:# basic fixed units;# fixed units on support frames;# withdrawable units (please consult us).Most can be equipped with either front orside operating mechanisms.intelligent and autonomousSF1 and SF2 circuit breakersSF1 and SF2 circuit breakers are used withthe standard protection units (Sepam,Statimax).SFset circuit breakersSFset circuit breakers integrate, in a singleunit, the different functions customarily foundin separate compartments.They are equipped with a fully autonomousprotection system, operating without anyauxiliary source and including:# a set of current sensors installed on thelower terminal of the pole unit;# a VIP electronic protection unit;# a low-consumption Mitop release.The various types of units available make itpossible to implement multifunctionprotection systems.C0415EN 001 007.fm/6GammeSchneider Electric
0certified quality: ISO 9001a major advantageIn each of its sites, Merlin Gerin has set up afunctional organisation vested with theresponsibility of verifying quality levels andensuring correct implementation ofstandards.Company procedures are:# uniform throughout all departments;# recognised by numerous customers andinspection organisations such as the FrenchElectrical Authority, Framatome, SSIA(French Military Procurement Surveillance),General Electric, etc.Furthermore, it is the rigorous application ofprocedures that has enabled certification byan independent organisation, the FrenchAssociation for Quality Assurance (AFAQ).The quality system of the MV departmenthas been certified for conformity with theISO 9001 quality assurance standard.severe and systematicinspectionsDuring production, each circuit breakerundergoes routine testing to ensure qualityand conformity. The following points arechecked:# pole-unit seals;# mechanical operation of the unit and anyassociated locking systems;# simultaneous closing of contacts;# insulation level at industrial frequency;# resistance of the main circuit;# insulation level of auxiliary circuits;# electrical resistance of the auxiliarycircuits;# operating speed;# operating cycle;# operating times.Results are indicated on the test certificatefor each unit.Schneider ElectricGammeAC0415EN 001 007.fm/
0SF circuit breakers, 1 to 40.5 kVgeneral(cont.)electrical characteristicstypeSF1 circuit breakerCEI 56, VDE 0670, BS 5311, UTE C 64-100/101rated voltage (kV 50/60 Hz)insulation levelrated currentla (A)breaking capacityIsc (kA rms)kV rms 50 Hz-1 minkV impulse 1.2/50 µs4006301250250031506 17,5at (kV) :243640,5making capacity (kA peak)short-time withstand current (kA rms-3s)capacitor breakingfor Ia (A) :400capacity630(A)125025003150rated operationO-3 min-CO-3 min-COsequenceO-0.3 s-CO-15 s-COO-0.3 s-CO-3 min-COapproximate operatingopeningtimes ANSI C37.04-C37.06-C37.09rated maximum voltagerated voltage rangerated insolation levelrated continuous currentkV, 60 HzK factorkV, rms. 60 Hz-1 mnkV, impulse 1,2/50 µsA600120020003000kA, rms.rated short-circuit current(at rated max kV)rated maximumkA, rmssymmetrical interruptingcapability and rated short-time currentclosing andkA, crestlatching capability(2.7 K times rated short-circuit current)rated interrupting timecycles 60 Hzrating operationCO-15 s-COsequence15.5 (2)150110##25.8 (1) (2)160150##38 (4)180150#2525252525256868685#5#5#(1) Please consult us.(2) This values are valid for outdoor installations.(3) Above 24 kV, the SFset is equipped with conventional current transformers.(4) Indoor installations.(5) Interphase barriers.(6) Only in fix installations.C0415EN 008 009.fm/8GammeSchneider Electric
SFsetcircuit breaker with integrated protection unit17.53895########2450125#########SF2 circuit breaker36(3)70170##2450125#12.520ISF2 5185(5)# 8(1)(2)160150Schneider Electric63257931.52804408751750 1.5256325 5EN 008 009.fm/
0SF circuit breakers, 1 to 40.5 kVdescriptionSF1 circuit breakerapplicationThe SF1 is a 3-pole MV circuit breaker forindoor installation.It is used primarily for switching andprotection of 1 to 36 kV public, industrialand commercial distribution networks.All standard protection units (Sepam,Statimax) may be used with the SF1 circuitbreaker.Note that it may also be equipped with anintegrated protection system to form a fullyautonomous circuit breaker (see the SFset).technologyThe SF1 implements the auto-compressiontechnique using SF6 gas as the currentinterruption and insulation medium.The SF1 is available in three versions:# basic fixed unit;# fixed unit with a support frame;# withdrawable unit (please consult us).Each version can be equipped with anoperating mechanism installed on the rightside, left side or in front.The basic fixed unit comprises:# three independent main poles that aremechanically connected; each comprises:5 an insulating enclosure of the "sealedpressure system" type (in compliance withIEC 56, 1987 edition, appendix EE) forminga hermetic assembly filled with SF6 at a lowrelative pressure (0.05 MPa, i.e. 0.5 bars or0.2 MPa depending on systemcharacteristics);5 active parts housed in the insulatingenclosure;# an RI-type stored-energy operatingmechanism (see the "operating mechanism"section);# a front panel with all the controls andindicators;# upstream and downstream terminals forconnection of the power circuits.The fixed unit with a support framecomprises:# the basic fixed unit described above;# a support frame fitted with:5 rollers for handling and installation;5 lugs for securing to the floor.Basic fixed SF1options(1)For each version, options include:# an electrical RI operating mechanism;# a device for locking the circuit breaker inthe open position (via a keylock);# a keylock for the locking option;# a pressure switch for each pole,equipped with an NO contact for continuousmonitoring of the SF6 (please consult us);(1) The "operating mechanism" section describes otherspecific auxiliaries.0415EN 010 017.fm/10GammeSchneider Electric
0SFset circuit breakerapplicationThe SFset is a 3-poles MV circuit breakerfor indoor installation.It is used primarily for switching andprotection of 1 to 36 kV public, industrialand commercial distribution networks.The SFset is equipped with an integratedprotection system that is fully autonomous(with VIP type protection unit), operatingwithout an auxiliary power supply (see the“protection andcontrol/monitoring” section).technologyThe SFset implements the autocompression technique using SF6 gas asthe current interruption and insulationmedium.The SFset is available in two versions:# basic fixed unit;# fixed unit with a support frame.Each version can be equipped with anoperating mechanism installed on the rightside, left side or in front.The basic fixed unit comprises:# a SF1 circuit breaker;# an autonomous protection systemcomprising:5 2 or 3 functional current sensors (2)installed on the lower current terminals ofthe pole units;5 a VIP electronic protection unit installedon the operating mechanism enclosure,5 a "Mitop" low-consumption openingrelease installed on the circuit breaker.The fixed unit with a support framecomprises:# the basic fixed unit described above;# a support frame fitted with:5 rollers for handling and installation,5 lugs for securing to the floor.Basic fixed SFset.Schematic diagram of the SFsetSF11MitopCSVIP2options (1)For each version, options include:# a device for locking the circuit breaker inthe open position (via a keylock);# a keylock for the locking option;# a pressure switch for each pole,equipped with an NO contact for continuousmonitoring of the SF6 (please consult us).(1) The "operating mechanism" section describes otherspecific auxiliaries.(2) For voltages 24 kV, units are fitted with conventionalcurrent transformers (please consult us).Schneider ElectricGammeAC0415EN 010 017.fm/1
0SF circuit breakers, 1 to 40.5 kVdescription (cont.)SF2, ISF2 circuit breakerapplicationThe SF2 is a 3-pole MV circuit breaker forindoor installation.It is used primarily for switching andprotection of 24 to 38 kV public andindustrial distribution networks.All standard protection units (Sepam,Statimax) may be used with the SF2(please consult us).special applicationISF2 is a 3-pole indoor switch-circuitbreaker. Designed to withstand highoperating rates, it is especially suitable forthe control of electric furnaces. It can switch50.000 times with a maintenance program tobe defined in accordance with operatingconditions.technologyThe SF2 implements the auto-compressiontechnique using SF6 gas as the currentinterruption and insulation medium.The SF2 is available in three versions:# basic fixed unit;# fixed unit with a support frame;# withdrawable unit (please consult us).The basic fixed unit comprises:# three independent main poles that aremechanically connected. Each comprises:5 an insulating enclosure of the "sealedpressure system" type (in compliance withIEC 56, 1987 edition, appendix EE) forminga hermetic assembly filled with SF6 at a lowrelative pressure (0.35 MPa, i.e. 3.5 bars);5 active parts housed in the insulatingenclosure;# an GMh-type stored-energy operatingmechanism (see the "operating mechanism"section);# a front panel with all the controls andindicators;# upstream and downstream terminals forconnection of the power circuits.The fixed unit with a support framecomprises:# the basic fixed unit described above;# a support frame fitted with:5 rollers for handling and installation,5 lugs for securing to the floor.Fixed SF2 with support frame.options (1)For the basic fixed unit or the fixed unitwith support frame, options include:# a device for locking the circuit breaker inthe open position (via a keylock);# a keylock for the locking option;# a pressure switch for each pole, forcontinuous monitoring of the SF6.1) The "operating mechanism" section describes otherspecific auxiliaries.0415EN 010 017.fm/12GammeSchneider Electric
0auxiliariesSingle shunt opening releasefor SF1, SFset and SF2.Auxiliary contact blockfor SF1, SFset and SF2.Double shunt opening releasefor SF1, SFset and SF2.Auxiliary contact blockfor SF2.Undervoltage opening releasefor SF1, SFset and SF2."End of charging" and "Operating mechanism charged"auxiliary contact block for SF1, SFset and SF2."Mitop" opening release for SF2.Schneider ElectricGammeAC0415EN 010 017.fm/1
0SF circuit breakers, 1 to 40.5 kVoperating mechanisms and diagramsSF1 and SFset circuit breakersSF1 and SFset circuit breakers are actuatedby an RI operating mechanism that ensuresoperating speeds (opening and closing)independent of operator action.When equipped with an electrical operatingmechanism, the circuit breaker can take onremote control functions and implementreclosing cycles.manual RI operatingmechanismThe basic version of the circuit breakercomes with a manual RI operatingmechanism comprising:# a stored-energy mechanism (springtype) that stores the energy required to closeand open the contacts;# a spring charging system using a built-inlever;# a mechanical "opening/closing"actuated by two pushbuttons on the frontpanel;# an electrical "opening" system includingan opening release (2);# an "operating mechanism charged"indication contact;# an "end of charging" contact;# a block with auxiliary contacts (3);# a black/white mechanical "open/closed"position indicator;# a terminal block for connection of externalauxiliary circuits;# a cover to protect the operatingmechanism.Electrical RI operating mechanismelectrical RI operatingmechanismThe electrical RI operating mechanism,available on request, is made up of themanual RI operating mechanism with thefollowing equipment added in the factory:# an electrical "closing" system with aclosing release and an anti-pumping relay;# an electrical spring charging device(motor-driven) that automatically rechargesthe mechanism as soon as the contacts areclosed;# an operations counter.options (1)The following options are available for themanual RI operating mechanism:# an electrical "closing" system includinga closing release;# an operations counter;# the common auxiliaries (see below).The following common auxiliaries areavailable for both teh manual and electricalRI operating mechanism:# an additional opening release(2) (seecombination possibilities below);# for the undervoltage release:5 a mechanical time delay for opening,adjustable from 0 to 3 seconds,5 a mechanism enabling the closing of thecircuit breaker in the event of a circuitbreaker supplied by a "downstream" voltage,# a momentary contact to indicate trippingby the "Mitop" release;# a green/red mechanical position indicator(instead of black/white).Auxiliaries: combination possibilities(4)RI operating mechanismand auxiliary contactspowersupplyvoltage AC (V)currentconsumption50 Hz60 HzDC (V)AC (A)AC (VA)DC (W)combinable auxiliarytypes and quantities (4)for SF1 and SFsetadditional combinationpossibilitiesfor leasecharging48 - 110 - 220 - 230120 - 24024 - 48 - 110 - 125 - 220opening releasesshuntundersingle double 5#1#1#1#1#1#1#1#1#1#1#1#1#1#1#1#12 x 1802 x 65 1#1#1#1#1rated current (A)breakingAC 220V (cos ø 0,3)capacity (A) DC 110/220V (L/R 0,02 s)2à512015#1#1#1#1availableMitop contacts (3)NC NO 111010.3(1) The "description" section provides further information.(2) Single or double shunt release, undervoltage release, or Mitop release (requiring no auxiliary source, necessary for SFset).(3) The number of available contacts depends on the options selected.(4) Maximum quantities with the electrical RI operating mechanism.0415EN 010 017.fm/14GammeSchneider Electric
auxiliary wiring diagramRI operating mechanism for SF1(1)JKNMM1-M2M3Circuit breaker.Anti-pumping relay.Spring charging motor.End-of-charging contacts."Operating mechanism charged" indicationcontact.QFCircuit breaker auxiliary contacts.SDFault (Mitop) trip indication momentary contact.SETrip indication maintained contact.Sm1Closing pushbutton (outside).Sm2Opening pushbutton for shunt release (outside).Sm3Opening pushbutton for undervoltage release(outside).SnClosing disable contact (outside).SPPressure-switch contact (please consult us).YFClosing release.Y01-Y02 Shunt opening releases.YMUndervoltage opening release.MitopMitop opening release (autonomous).YX1-YX2 Overcurrent opening MYX1YFYX2RI operating mechanism for SFset(1)JKNMM1-M2M3QFSDSESm1Sm2Sm3Circuit breaker.Anti-pumping relay.Spring charging motor.End-of-charging contacts."Operating mechanism charged" contact.Circuit breaker auxiliary contacts.Fault (Mitop) trip indication momentary contact.Trip indication maintained contact.Closing pushbutton (outside).Opening pushbutton for shunt release (outside).Opening pushbutton for undervoltage release(outside).SnClosing disable contact (outside).SPPressure-switch contact (please consult us).YFClosing release.Y01Shunt opening releases.YMUndervoltage opening release.MitopMitop opening release.YX1-YX2 Overcurrent opening pSDYX1YX2(1) Dotted lines represent optional equipment.Schneider ElectricGammeAC0415EN 010 017.fm/1
0SF circuit breakers, 1 to 40.5 kVoperating mechanisms and diagrams (cont.)SF2 circuit breakersSF2 circuit breakers are actuated by aGMh operating mechanism that ensuresoperating speeds (opening and closing)independent of operator action.It can take on remote control functions andimplement reclosing cycles.GMh operating mechanismElectrical GMh operating mechanism (cover removed)Every SF2 circuit breaker comes with amanual and electrical GMh operatingmechanism.The manual operating mechanismcomprises:# a stored-energy mechanism (springtype) that stores the energy required to closeand open the contacts;# a spring charging system using aremovable lever;# a mechanical "opening/closing" systemactuated by two pushbuttons on the frontpanel;# an electrical "opening" system includingan opening release(2);# an "operating mechanism charged"indication contact;# an "end of charging" contact;# a block with auxiliary contacts (3);# a black/white mechanical "open/closed"position indicator;# a terminal block for connection ofexternal auxiliary circuits;# a cover to protect the operatingmechanism.The electrical GMh operating mechanism ismade up of the manual GMh operatingmechanism plus:# an electrical spring charging device(motor-driven) that automatically rechargesthe mechanism as soon as the contacts areclosed;# an electrical "closing" system with aclosing release and an anti-pumping relay;# an operations counter.options(1)The following options are available for theGMh operating mechanism:# an additional opening release(2) (seecombination possibilities below);# for the undervoltage release:5 a mechanical opening time delay,adjustable from 0 to 3 seconds,5 a mechanism enabling the closing of thecircuit breaker in the event of a circuitbreaker supplied by a "downstream" voltage,# a green/red mechanical position indicator(instead of black/white).Auxiliaries: combination possibilities(4)GMh operating mechanismand auxiliary contactspowervoltagesupplyconsumptioncombinable auxiliarytypes and gAC (V) 110 - 127 - 220 - 230DC (V) 24 - 48 - 110 - 125 - 220AC (VA) 700120DC (W) 1#1#1oropening releaseshuntsingledouble12070#1#1#1#22 x 1202 x 70undervoltageMitop7515#1#1#1#1#1rated current (A)breakingAC 220V (pf 4 0.3)capacity (A) DC 110/220V (L/R 6 0.01 s)#1#1#1#1availablecontacts (3)NC NOCHG55555555510444333535111111111103(1) The "description" section provides further information.(2) Single or double shunt release, undervoltage release,or Mitop release (requiring no auxiliary source, for Statimaxsystem).(3) The number of available contacts depends on theoptions selected.(4) Maximum quantities with the electrical GMh operatingmechanism.0415EN 010 017.fm/16GammeSchneider Electric
0auxiliary wiring diagramGMh operating mechanism for SF2 (1)JKNMM1-M2M3Circuit breakerAnti-pumping relaySpring charging motorEnd-of-charging contacts"Operating mechanism charged" indicationcontactQFCircuit breaker auxiliary contactsSEMaintained trip indication contactSm1Closing pushbutton (outside)Sm2Opening pushbutton for shunt release (outside)Sm3Opening pushbutton for undervoltage release(outside)SnClosing disable contact (outside)SPPressure-switch contactYFClosing releaseY01-Y02 Shunt opening releasesYMUndervoltage opening releaseMitopMitop opening release SPYMYF(1) Dotted lines represent optional equipment.Schneider ElectricGammeAC0415EN 010 017.fm/1
0SF circuit breakers, 1 to 40.5 kVprotection and control/monotoringProtection unitsfor SF1 and SF2All standard protection units (Sepam,Statimax) may be used with the SF1 andSF2.For further information, please consult us.The various units ofer wide trip-currentsetting ranges and are very stable overtime.OperationSensors supply the protection system with: current information, used by theprotection system ; the electrical power required forthe operation of the protection system (VIP unitand Mitop release).All settings are visible and accessible fromthe front of the circuit breaker.Possible combinationsThe VIP unit mulst be selected taking intoaccount the network characteristicsindicated in the table below.for SFsetVIP protection unit installed on the front panel.The SFset is made up of a SF1 circuitbreaker with an added integrated protections
concept, the SFset circuit breaker with integrated protection functions. SF6 switchgear is thus capable of meeting the most demanding requirements of public and industrial distribution networks world-wide, up to 40.5 kV. 0SF circuit breakers, 1 to 40.5 kV SF6 gas
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