3VF2 Circuit-Breakers

Transcription

1 Circuit-Breaker - and -pole, up to Technical data or other circuit-breaker Specification IEC 0 97, EN 0 97 ax. rated current I n to Rated inulation voltage U i ain current path uxiliary circuit Rated impule withtand voltage U imp ain current path uxiliary circuit C C k k 5 Rated operational voltage U e IEC C up to 5 Permiible ambient temperature C 0 to +70 Permiible load at variou ambient temperature cloe to the circuit-breaker, related to the rated current of the circuit-breaker circuit-breaker at 0 C % for line protection C % 55 C % 0 C % 70 C % Rated hort-circuit making and breaking capacity Rated ultimate hort-circuit breaking capacity I cu ) up to 0 k up to 5 k 5 Rated ervice hort-circuit breaking capacity I c up to 0 k up to 5 k 9 Rated hort-circuit making capacity I cm up to 0 k up to 5 k ain witch characteritic to IEC with lockable rotary drive fitted ye EERGENCY STOP witch characteritic to N DE 0 ye echanical endurance ax. frequency of operation operation /h 00 0 Conductor cro-ection and type of connection for main conductor Connection type Solid or tranded up to 0 aaaaaaaa oder mehrdrähti to mm mm.5 to 0 to Tightening torque for box terminal Nm.0/5.7 Conductor cro-ection for auxiliary circuit with terminal connection or terminal trip Solid mm to.5 Tightening torque for terminal crew Nm 0.9 Power lo per circuit-breaker at max. rated current I n with ymmetrical -phae load for line protection Permiible mounting poition NS-55 NS-555 uxiliary witche Rated continuou thermal current I th Rated making capacity 5 C (C-5) Rated operational voltage Rated operational current 0 DC (DC-) Rated operational voltage Rated operational current 5 Back-up fue Releae Shunt releae (f-releae) Repone voltage pick-up (breaker trip) 0.7 to. U Power conumption (hort time) at: C /0 Hz 0 C /0 Hz 7 C /0 Hz 0 0 DC 0 DC DC 0 DC. ax. ON period interrupt automatically ax. opening time m / Siemen NS K 000

2 or other circuit-breaker to Circuit-Breaker - and -pole, up to 0 Technical data Type 5 7 ax. rated current I n depending on verion 0/05 00/ 5/00 0/0/00 00/ 00/000 0 Rated inulation voltage U i to IEC ain current path uxiliary circuit C Rated impule withtand voltage U imp ain current path k uxiliary circuit k Rated operational voltage U e (DC ee below) IEC NE C C ) 00 ) 00 Permiible ambient temperature C 0 to to to to to +0 5 to +0 5 to +0 Permiible load at variou ambient temperature cloe to the circuit-breaker, related to the rated current of the circuit-breaker $ % $ % $ % $ % & & & circuit-breaker for line protection circuit-breaker for motor protection circuit-breaker for tarter combination and non-automatic circuit breaker at 0 C % C % 55 C % 0 C % 70 C % at 0 C % C % 55 C % 0 C % 70 C % at 0 C % C % 55 C % 0 C % 70 C % Rated hort-circuit breaking capacity (DC) Not for motor protection circuit-breaker Time contant τ = 0 m current current current current path path path path in erie in erie in erie for to to DC 0 DC 00 DC 7 DC k NE Time contant τ = m path current path in erie DC k DC k ain witch characteritic to IEC with lockable rotary drive fitted EERGENCY STOP witch characteritic to N DE 0 Rated hort-circuit breaking capacity to IEC (C /0 Hz) ) / /9 / / / ) 0 ) ) ) ) 00 ye ye ye ye ye ye ye ye ye ye ye ye ye ye See page/9 for rated hort-circuit breaking capacity. ) ) ) ) ) ) $ Thermal overload releae et to the upper value or fixed-etting thermal overload releae. % Thermal overload releae et to the lower value. & Electronic releae. ) or circuit-breaker with rated current 0 : U e maximum 5. ) 0 k for ) Circuit-breaker not uitable for DC. ) lo uitable for 00 Hz ytem, technical data on requet. Siemen NS K 000 /7

3 to Circuit-Breaker and -pole, up to 0 Technical data or other circuit-breaker Type 5 7 ax. rated current I n depending on verion 0/05 00/ 5/00 0/0/00 00/ 00/000 0 Endurance operation ax. frequency of operation /h Conductor cro-ection and type of connection for main conductor ) Connection type Solid or tranded mm inely tranded with end leeve mm Bubar mm ultiple feed-in terminal (acceory) Cu or l, tranded mm Tightening torque for box terminal Nm Tightening torque for bubar connection piece Nm Conductor cro-ection for auxiliary circuit 5 ) with terminal connection or terminal trip Solid mm inely tranded with end leeve ith brought out cable end Tightening torque for terminal crew mm mm Nm Box terminal.5 to 70; 95 ).5 to ; 70 ) 5/9.5/ to to.5 0. (G ) 0. to Box terminal to 5 to to to.5 0. (G ) 0. to Box terminal 95 to 0 ) 70 to to to.5 0. (G ) 0. to lat bar terminal 0 0 ) () 0.75 to to.5 0. (G ) 0. to lat bar terminal 0 0 ) (955) 0.75 to.5 up to.5 0. (G ) 0. to lat bar terminal 0 0 ) 0 0 ) 7 up to up to.5 0. (G ) 0. to ertical bubar up to up to.5 0. (G ) 0. to. Conductor cro-ection for motor operating mechanim Solid and tranded mm 0.75 to to to to to to to.5 Power lo per circuit-breaker at max. rated current I n with ymmetrical -phae load line protection non-automatic circuit breaker for tarter combination motor protection Permiible mounting poition (The power lo of the undervoltage releae (r releae) mut alo be taken into account where applicable) /0 7/0 5/0 5/ NS-55 NS-555 ) ax. cro-ection for one conductor only. or maller cro-ection: um up to max. cro-ection permiible. Cupl leeve/cable lug or Cupl him are recommended for connecting aluminium conductor. ) or. ) 00 : 0 5. ) Bubar connection piece (ee acceorie). 5) conductor can be connected. ) 0 mm not uitable for egmented conductor a the terminal ha an oval aperture. / Siemen NS K 000

4 or other circuit-breaker to Circuit-Breaker and -pole, up to 0 Technical data Type 5 7 uxiliary witche Conventional thermal current I th Rated making capacity C (C-5) Rated operational voltage Rated operational current DC (DC-) Rated operational voltage Rated operational current Back-up fue iniature circuit-breaker Leading auxiliary witche (only on combination with rotary drive) Conventional thermal current I th Rated making capacity (inductive ) (inductive ) C co ϕ (inductive ) (inductive ) Rated operational voltage Rated operational current Rated breaking capacity 0 (inductive ) 0 (inductive ) 0 inductive ) 0 (inductive ) 0 0 Back-up fue (quick-repone) Releae Undervoltage releae (r releae) Repone voltage: Drop (breaker trip) Pick-up (breaker can be cloed) Power conumption (uninterrupted) at: C /0 Hz C /0 Hz 0 C /0 Hz 07 C /0 Hz 00 C /0 Hz C /0 Hz 00 DC DC 0 DC 05 DC 0 DC ax. opening time Shunt releae (f releae) Repone voltage Pick-up (breaker trip) Power conumption (hort time) at: C /0 Hz 0 C /0 Hz 7 C /0 Hz 00 C /0 Hz 00 C /0 Hz 000 C /0 Hz 000 C /0 Hz DC 0 DC 05 DC 0 DC m 0.7 to U 0.5 to. U to. U to U 0.5 to. U to. U to U 0.5 to. U to. U to U 0.5 to. U to. U to U 0.5 to. U to. U ax. ON period interrupt automatically ax. opening time m to U 0.5 to. U to. U Siemen NS K 000 /9

5 to Circuit-Breaker and -pole, up to 0 Technical data or other circuit-breaker Type 5 7 otor operating mechanim Power conumption Rated control upply C /0 Hz voltage DC Back-up fue or miniature circuit-breaker orking range of control upply voltage inimum ignal duration at U ax. make- or break-time Recloing poible after approx. ax. permiible frequency of operation 0 (for (for : ) :0 ) /h 0.5 to. U to. U to. U to. U 0 (-pole: 0) 07 5 (for 0 DC) 0.5 to. U ax. operating ignal duration Non-maintained or continuou ignal (depend on circuit) otor operating mechanim uitable for ynchronizing Power conumption Rated control upply C /0 Hz voltage DC Back-up fue or miniature circuit breaker orking range of control upply voltage inimum ignal duration at U ake-time Break-time Spring rewinding time Recloing poible after approx. ax. permiible frequency of operation (for : 0 ) m m /h 0.5 to. U to. U ax. operating ignal duration Non-maintained or continuou ignal (depend on circuit) Solenoid operating mechanim aking current at rated control upply voltage 00 C, 00 DC 00 C, 00 DC Back-up fue at rated control upply voltage 00 C, 00 DC 00 C, 00 DC orking range of control upply voltage inimum ignal duration at U ax. make- or break-time inimum neceary paue following operation m m to. U to. U 5 0 (-pole: 0) to. U /0 Siemen NS K 000

6 Circuit-Breaker or other circuit-breaker Decription Specification ll circuit-breaker comply with: IEC 0 97-/N DE 00, Part ; IEC 0 97-/N DE 00, Part 0. Iolator characteritic to IEC In addition, the overload protection for motor protection circuit breaker complie with: IEC /N DE 00, Part 0. The main witche comply with N DE 0, ee page /. Operating condition circuit-breaker are climate proof. They are intended for ue in encloed area where no evere operating condition (e.g. dut, corroive vapour, damaging gae) are preent. hen intalled in duty and damp area, uitable encloure (houing, cubicle) mut be provided. The permiible ambient temperature and the aociated rated current are lited in the technical data (ee page /). Degree of protection Circuit-breaker IP 0 with front rotary drive IP 5 with door coupling rotary drive IP 5 with motor/olenoid operating mechanim IP 0 with plug-in ocket IP 0 Electronic overcurrent releae for line protection (example 7) r $ Set current I r % Tripping current I d & Time delay t d Toggle lever and witching tatu indicator ON O NSK- $ Toggle lever % Switching tatu window Poition of toggle lever NSK-57c O (RESET) ON t m intantaneou X >> >> Solid-tate Trip Unit i 5 k 5 circuit-breaker, internal contruction % $ & ( ) * CTIE NS-c LED flahe: overcurrent releae operating fault-free; LED light continuouly: ( overload condition $ Cae % ain connection & rc chamber ( oving contact ) Breaker mechanim * Overcurrent releae module Deign The baic circuit-breaker have a toggle lever operator (ee Toggle lever and witching tatu indicator $), which alo act a a witching tatu indicator. In addition to the ON and O poition, the Tripped poition i poible. The lever jump to the Tripped poition if the circuitbreaker ha been tripped by the operation of it overload, hort-circuit, hunt or undervoltage releae or by preing the TEST -button. To be able to recloe the circuit-breaker after tripping, the toggle lever mut be moved beyond the O poition ( RESET ). It i then ready to cloe again (ee Poition of toggle lever ). additional witching tatu indication, the to circuit-breaker have window to the right and left of the toggle lever (ee Toggle lever and witching tatu indicator %. Tripped in which the colour red, green and white correpond to the ON, O and Tripped poition. Overcurrent releae ytem ll circuit breaker are upplied complete with an integral overcurrent releae (ee diagram 5 circuit-breaker, internal contruction *). to circuitbreaker for line protection with mechanical overcurrent releae, i.e. overcurrent releae verion an The overload and hort-circuit releae function with bimetallic or magnetic element. The overload and hort-circuit releae can be upplied with a fixed or adjutable etting. our pole circuit-breaker for line protection can be upplied optionally with overcurrent releae in all pole or without overcurrent releae in the th pole (N). bove rated current, the releae in the th pole (N) are deigned for 0% of the current of the main conductor to enure afe protection for cable with reduced cro-ection neutral conductor. Siemen NS K 000 /

7 Circuit-Breaker Decription or other circuit-breaker 5 to circuitbreaker for line protection with electronic overcurrent releae ll 7 to circuit breaker are equipped with azn electronic overcurrent releae for hort-delay hort-circuit tripping. 5 and circuit breaker can be equipped with azn electronic overcurrent releae. The electronic overcurrent releae ytem conit of: current tranformer Evaluation electronic with microproceor Tripping magnet. No auxiliary voltage upply i required for the releae ytem. minimum load current of approximately 0% of the correponding rated current I n of the circuit-breaker i required to activate the overcurrent releae. ault-free operation of the overcurrent releae i hown by the regular flahing of the CTIE LED ( (ee page /, Electronic overcurrent releae (). teady light indicate an overload condition (I > % I n ). Current-dependent delayed overcurrent tripping a The et current I r can be et from to time the value of the rated current I n of the circuit-breaker in tep. The time-current characteritic of the current-dependent tripping correpond to 0 at 7. I r (ee page /, Electronic overcurrent releae $). Short time-delayed hortcircuit tripping z The repone value I d can be et in 7 tep between and time the value of I r. The delay time t d can be et from 0 (intantaneou) to 00 m in tep. Time electivity with the downtream circuit-breaker can thu be achieved up to current value of.0 k ± 5% for 5, 5.5 k ± 5% for, 5 k ± 5% for 7 and 0 k ± 5% for. Intantaneou hort-circuit tripping n The repone value I i of the intantaneou hort-circuit releae i et to a fixed value of k for 5, 5.5 k for, 5 k for 7 and 0 k for. The electronic circuit of the overcurrent releae i inherently afe at high temperature: if the temperature of the printed circuit board rie to C the circuit-breaker trip. Circuit-breaker for motor protection ll circuit-breaker for motor protection are equipped with electronic overcurrent releae. Thee work on the ame principle a the electronic overcurrent releae fitted to the line protection circuit-breaker. The characteritic curve of the current-dependent delayed overload releae i matched optimally to the overload behaviour of three-phae motor. Depending on the verion, the time-current characteritic of the overload releae can be et in tep between Cla 5 and Cla 0. Phae failure enitivity i alo integrated into thi deign variant, o that the motor i provided with reliable protection even in the event of phae failure or aymmetry. ll to circuit-breaker for motor protection have a o-called thermal memory that tore the preload of the breaker and tripping due to overload and take account of the heating of the motor by reducing the tripping time (ee characteritic in Catalog NS PS). cooling period of a few minute may therefore be required following tripping on overload before the motor can be re-tarted. The ame applie to too many tart within a hort period that caue inadmiible heating of the motor. recloing lockout remain in force for one minute following a trip on overload. In circuit with very high harmonic content caued by frequency converter or oft tarter, to circuit-breaker with an bimetal releae are recommended. Circuit-breaker for tarter combination Circuit-breaker for tarter combination are in practice ued together with a motor contactor and a uitable overload relay. Non-automatic circuit-breaker Non-automatic circuit-breaker have integral hort-circuit protection o that back-up fue are not required. ourpole non-automatic circuitbreaker do not have a hortcircuit releae in the th pole (N). Intallation ounting the circuit-breaker in line without intermediate pacing i, in fact, poible but i not recommended becaue of the reduced heat diipation (and poible reduction of current rating). Connection (ee acceorie, page /) The baic circuit-breaker i upplied a follow: ith box terminal to 5 circuit-breaker for the direct connection of tranded cable or finelytranded cable with leeve (ee diagram box terminal for and and Technical Data). Bubar connection piece to circuit-breaker are connected uing bubar connection piece. Thee are deigned for the connection of tandard bubar and are available for front or rear connection. circuit-breaker are upplied with front connection piece. ront bubar connection piece for 7 Box terminal for (left and (right) The connection of laminated copper bar uing clamp termination i poible with breaker type (up to 0 ),, 5, and 7 (up to 00 ). The incoming and outgoing ide can be choen a deired for all circuit-breaker. The electrical data remain unchanged. n exception to thi i circuit-breaker fitted with module: thee breaker mut be fed from the top. Bare cable and bar ued a top connection mut be inulated in the area of the arc blowout (ee dimenion drawing on page / and /5). Phae eparation barrier (ee acceorie, page / and /) can alo be ued for thi purpoe. NSK-9 NSK- / Siemen NS K 000

8 Circuit-Breaker or other circuit-breaker ethod of intallation ixed mounting Uing the tandard deign Plug-in circuit breaker intead of box terminal, the circuit-breaker have knife contact and alo a afety trip pin. Thi caue the breaker to be tripped if an attempt i made to unplug it while it i cloed and prevent the breaker from being witched on before it i replaced in it ocket. ithdrawable circuit-breaker and 7 circuit-breaker are available in a withdrawable deign. ithdrawable circuit-breaker cannot be fitted with motor operating mechanim. uxiliary releae, auxiliary witch connection with terminal trip (left) connection with cable (right) Rotary drive with door coupling for NSK- NSK-7 ront rotary drive for Decription otor operating mechanim for Connection of acceorie Two type of connection are poible for internally-fitted acceorie (auxiliary releae, auxiliary witche) (ee illutration): ith terminal trip (on the ide of the breaker) ith connection cable (finely tranded) otor operating mechanim alway have connection terminal. cceorie ll circuit-breaker are upplied complete with internally-fitted acceorie according to order (e.g. auxiliary or alarm witche, undervoltage or hunt releae). The equipment option can be een from the ordering table on page /. Externally-fitted acceorie, uch a rotary drive, motor operating mechanim, connection acceorie etc. are alway upplied eparately. Drive (ee page /0) ront rotary drive (ee illutra- Leading auxiliary witch S in front rotary drive tion). Thee are deigned for fitting direct on the circuit-breaker and convert the vertical toggle lever movement into a rotary motion (rotary drive with knob). Leading auxiliary witch in front rotary drive (ee illutration) If a circuit-breaker ha a leading auxiliary witch, it i poible to energize the undervoltage releae early and thu make the circuit-breaker ready to cloe. Rotary drive with door coupling (ee illutration) (complete drive) Door coupling drive in the UC range are available for fitting to circuit breaker in control cubicle and ditribution board with door and detachable cover. Thee are upplied a a complete kit including articulated coupling, ee Part. In repect of the witching tatu indication and the RESET operation, the ame applie to the rotary drive a to the toggle lever. Indication i by the poition of the knob (ee Contruction, page /). ront rotary drive with and without door coupling ll rotary drive can be locked in the O poition uing padlock. ll circuit-breaker equipped with thee drive and with uitable terminal cover can therefore be ued a main witche in accordance with N DE 0. otorized operating mechanim to circuit breaker can be equipped with motor operating mechanim to permit remotely-controlled opening and cloing. otorized operating mechanim uitable for ynchronizing (motor-wound tored energy mechanim) or rapid cloing uitable for ynchroniing (t E < 0 m) or for normal remote tripping, olenoid mechanim or motorwound tored energy mechanim are available. Locking device to accept padlock are available a an option for motor operating mechanim and are generally fitted to tored-energy and olenoid mechanim. Thee provide electrical and mechanical lockout of the drive. ll remotelycontrolled mechanim are provided with a manual operation device that permit all witching operation to be performed locally. NSK-a L, L, L S Switch ON cloed open 0 0 Siemen NS K 000 /

9 Circuit-Breaker Decription uxiliary releae and auxiliary witche Undervoltage releae, leading auxiliary witch The circuit-breaker can only be cloed if voltage i applied to the undervoltage releae. If there i no voltage preent, operation of the breaker reult in re-tripping. requent re-tripping hould be avoided becaue of it effect on the ervice life of the circuitbreaker. If the circuit-breaker ha a leading auxiliary witch, it i poible to apply voltage early to the undervoltage releae and thu prepare the breaker for cloing. or circuit-breaker, the leading auxiliary witch can be upplied with the front rotary drive or complete drive. See cceorie for more information. Delay device for undervoltage releae To avoid tripping of the circuitbreaker during brief interruption or drop in the voltage, delay device can be fitted in the undervoltage releae circuit. hen electing a circuitbreaker with delayed undervoltage releae, it mut be noted that the voltage of the undervoltage releae mut be elected for DC. Shunt releae The hunt releae (f releae) i ued for remote tripping. The coil of the hunt releae i deigned for hort-time operation only. It i not permiible to apply a continuou trip command to a hunt releae to prevent cloing when the circuit-breaker i tripped, i.e. interlocking circuit with a continuou command mut not be deigned to operate a hunt releae. uxiliary witche uxiliary witche are ued for indication and control. The variou function of the auxiliary witch ( changeover) can be een from the table. Option for equipping to circuit-breaker with auxiliary and alarm witche -pole circuitbreaker S S S HS HS S S + HS S left for motor protection right Poition of toggle lever (applie alo in the ame ene to rotary drive) HS HS S S + HS HS HS HS HS U< S HS HS S Poition of auxiliary witch ) ) larm witch The alarm witch operate when the circuit-breaker i tripped by hort-circuit or overcurrent and alo when tripped by the hunt releae or undervoltage releae. HS S -pole circuitbreaker HS S S S S U< U< U< U< U< Poition of alarm witch left S S uxiliary witch larm witch right itting auxiliary witche and alarm witche (ee acceorie, page /) The equipping of a circuitbreaker with auxiliary witche and alarm witche depend on the poition in which thee witche are fitted in the circuitbreaker and on the ize of the circuit breaker. The fitting poition of the auxiliary witche HS HS HS HS HS HS HS U< S or circuit-breaker only or other circuit-breaker HS S NSK-57f Shunt releae or undervoltage releae or module (if built in) Poition of auxiliary witch ) ) to HS S Operation of contact of auxiliary and alarm witche depending on the witching tatu of the circuit-breaker NS-57b O (RESET) ON Tripped () () (5) () () (5) () () (5) NSK- NSK- () () () NS-575 () () () () () () Poition of alarm witch to () () 5(5) NS-57 () () 5(5) () () 5(5) and alarm witche differ according to the deign of the circuit-breaker (ee page / to /7). PLC interface Poition of leading auxiliary witch ) to NS-577 Coupling unit or relay hould be ue to interface with a PLC. or characteritic of circuit breaker,, Product and ytem for power ditribution. ) only provided on.... ) alue in bracket apply to econd witch block. ) The connection marking for the rd and th auxiliary witche can be een from the circuit diagram on page /5. ) Built into the rotary drive. / Siemen NS K 000

10 or other circuit-breaker The circuit ymbol ued in the equipment circuit diagram only provide information about the type, circuit and method of operation of the equipment within the meaning of N 0 7 but not about it deign. all poible combination cannot be hown here, the circuit diagram hould be modified a appropriate for different verion. Circuit diagram are only provided a may be neceary to give a better undertanding of the functioning of the equipment. to Circuit-Breaker - and -pole 7 77 S 7 7 S5 7 U Leading auxiliary witch N 5 N Circuit diagram Connection diagram for - and -pole to circuit-breaker for line protection NS-0c S 5 5 S larm witch Q ain contact Electronic overcurrent releae Trip magnet for Undervoltage releae Shunt releae S t + nd aux. witch S rd + th aux. witch S larm witch S Leading aux. witch (fitted in rotary drive) T...T Current tranformer T5...T Intermediate tranformer Power upply G Output tage D Thermal memory R Current etting R Setting for time-current characteritic four pole verion Connection diagram for, 5 and circuit-breaker for motor protection and for and -pole 7 and circuit-breaker (7 without S) C D U C D v + - Q N 5 5 v v v v T5 T T7 T a z n 7 77 S 7 S S 5 5 S T T T T K L K L K L K L NS-0b N otor izedoperating mechanim for to L(L+) S * 5 K K K K NS-55a L(L+) S * 5 K K K K NS-5a 5 K K 5 K K N(L,L-) leeting, momentary or continuou command ignal; minimum duration 0 m. Not for circuit-breaker with undervoltage releae O S ON EERGENCY STOP or remote tripping K, K, K uxiliary relay for motor control Control circuit fue K K K U < N(L,L-) leeting, momentary or continuou command ignal; minimum duration 0 m. Not for circuit-breaker with undervoltage releae * larm witch contact 5 caue a RESET operation, i.e. preparation for recloing following tripping. ithout thi contact there i a recloe lockout, i.e. recloing i only poible following a trip by reetting the breaker to RESET by mean of the O command (). Siemen NS K 000 /5

11 to Circuit-Breaker - and -pole Circuit diagram or other circuit-breaker otorized operating mechanim for to otorized operating mechanim for L(L+) S NS-5a L(L+) E K K NS-5a S S 5 K K K K K K S N(L,L-) N(L,L-) omentary command ignal > ec Not for circuit-breaker with undervoltage releae Recloing following tripping only poible after an O command (reetting to RESET). upplied, terminal / and are not linked together. hen ued without auxiliary relay K, K, thee connection mut be made. E ON button for remote operation O button for remote operation S ON poition indication witch S O poition indication witch S Switch for locking device K, K uxiliary relay for motor control otorized operating mechanim for 7 otor izedoperating mechanim for 7 with undervoltage releae L(L+) L(L+) S NSK-59 S K K NSK-59 K K K K 7 K 7 PE PE N(L,L-) 5 K N(L,L-) 5 K K U< omentary or continuou control command, minimum duration ec O S ON Control circuit fue $ Switching poition limit witch % Locking device & Connection 5 and 7 are link provided a tandard leeting, momentary or continuou control command, minimum duration 0 m, for circuit-breaker with undervoltage releae (without undervoltage releae,, relay K, NO contact K are not required) O S ON EERGENCY STOP or remote tripping K, K, K uxiliary relay for motor control Control circuit fue $ Switching poition limit witch % Locking device / Siemen NS K 000

12 or other circuit-breaker to Circuit-Breaker - and -pole Circuit diagram otorized operating mechanim for, 5, uitable for ynchronizing L(L+) S S K K K * 5 K K K K K PE - + NSK-7 O S ON (tored energy releae) S Rewind tored energy pring / EERGENCY STOP or remote operation K, K, K, K uxiliary relay for motor control Control circuit fue $ ON tored energy releae % Switching poition indication witch & Locking device ( Undervoltage releae ) Shunt releae * larm witch contact 5 caue the breaker to be moved to RESET (O) after tripping of an auxiliary releae. The breaker i then ready for rewinding. N(L,L-) K K K 5 U < K Circuit : ON, O, Rewind by eparate control command Three-button control leeting, momentary or continuou control command; minimum duration 0 m; if neceary, ue alarm witch (contact 5) for automatic latching; K, are not required for circuit-breaker without undervoltage releae. otorized operating mechanim for, 5, uitable for ynchronizing L(L+) S K PE * K 5 K K K K K - + NSK-77 S / O or O + rewind ON (tored energy releae) EERGENCY STOP or remote operation uto-rewind function O (e.g. for operating the locking device) K, K, K, K uxiliary relay for motor control Control circuit fue $ ON tored energy releae % Switching poition indication witch & Locking device ( Undervoltage releae ) Shunt releae * larm witch contact 5 caue rewinding of the after tripping of an auxiliary releae, cauing the circuitbreaker mechanim to latch again and etablih readine for cloing. N(L,L-) K K K 5 U < K Circuit : utomatic rewinding following O Two-button control leeting or momentary control command; minimum duration 0 m; aximum duration for O + rewind command (uto-rewind): ec; if neceary, ue alarm witch (contact 5) for automatic rewinding following tripping; K, are not required for circuit-breaker without undervoltage releae. Siemen NS K 000 /7