MASTERPACT NT - Schneider Electric
Contents
1. E60048A E51294A Anti pumping function The purpose of the mechanical anti pumping function is to ensure that a circuit breaker receiving simultaneous opening and closing orders does not open and close indefinitely If there is a continuous closing order after opening the circuit breaker remains open until the closing order is discontinued A new closing order is required to close the circuit breaker A new order is not required if the closing release is wired in series with the PF ready to close contact 10 Masterpact NT Schneider Electric Opening the circuit breaker Locally Press the OFF pushbutton E60047A E51499A Remotely Use one of the following solutions B one or two MX opening releases MX1 and MX2 m one MN undervoltage release m one MN undervoltage release with a delay unit E60048A When connected to a remote control panel these releases can be used to open the circuit breaker remotely MX1 MX2 MN Delay unit E51294A E51296A ES Masterpact NT Schneider Electric Using Masterpact Resetting after a fault trip The circuit breaker signals a fault trip by ma mechanical indicator on the front m one or two SDE fault trip indication contacts SDE 2 is optional Locally If the circuit breaker is not equipped with the automatic reset option reset it manually E60047A E51349A Remotely Use the Res electrical remote2. m part numbers r1 Ronis 1 keylock 41940 1 keylock one identical keylock 41950 2 different key locks 2 x 41940 r1 Profalux 1 keylock 42888 1 keylock one identical keylock 42878 2 different key locks 2 x 42888 Profalux E51287A E51274A EJ Masterpact NT Schneider Electric E60011A E51498A E59190A Ben E Ban E60345A E46095A Chassis accessories Door interlock m optional equipment B this device inhibits one door interlock per opening of the cubicle chassis door when the circuit m part number 33172 breaker is in connected or test position mit may be mounted on the left or right hand side of the chassis Racking interlock m optional equipment m this device prevents one racking interlock per insertion of the racking chassis handle when the cubicle m part number 33788 door is open mit is mounted on the right hand side of the chassis Mismatch protection m optional equipment m mismatch protection one mismatch protection offers twenty different device per chassis combinations that the m part number 33767 user may select to ensure that only a compatible circuit breaker is mounted on a given chassis Auxiliary terminal shield CB m optional equipment m the shield prevents one CB shield per access to the terminal chassis block of the electrical B part numbers auxiliaries 3 poles 33763 4 po
3. position indicator Crank socket Mismatch protection Q O Position release button Crank storage Door interlock Bm N ef 94 Drawout grip Disconnecting contact cluster Safety shutters E Masterpact NT Schneider Electric E60057A Discovering Masterpact Drawout circuit breaker switch disconnector XF closing release Arc chute MX 1 opening release MX 2 opening release or MN undervoltage release Terminals for control unit fault indication contacts control auxiliaries and auxiliary contacts SDE 1 fault trip indication contact OF ON OFF indication contacts PF ready to close contact 3 Operating mechanism charging handle MCH gear motor for Carrying grip eas electrical charging of the D Side plate for drawout device 3 y SS SDE 2 fault trip indication contact or Res electrical remote reset Control unit V AVA TE LE Masterpact NT operating mechanism Keylock for locking in open position BPFE electrical closing pushbutton BPFE electrical closing pushbutton Padlock for locking in open position Closing pushbutton Opening pushbutton Operation counter Schneider Electric Fixed circuit breaker switch disconnector E60058A XF closing release Control auxiliary terminals Arc chute MX 1 opening release MX 2 opening release
4. CD1 CE3 CE2 CE1 lt lt lt E x e e o C eo e ce e uw T Lu m uw N co co rap co co D Chassis contacts CD2 CD1 CE3 CE2 CE1 CT1 oO o 824 814 334 324 314 914 6 6 6 d 8 822 812 332 322 312 912 6 6 6 d 6 6 6 1d 821 811 331 321 311 911 Chassis contacts 440 480 V AC gear motor for charging 380 V motor additional resistor CN1 u 440 480 V 440 480 V charged LED B1 E60075A CN2 v 440 480 V LJ Masterpact NT CD2 CD1 CE3 CE2 CE1 CT1 Disconnected Connected Test position position position contacts Key Drawout device only Interconnected connections SDE1 OF1 OF2 OF3 OF4 supplied as standard only one wire per connection point Schneider Electric E46108A Discovering Masterpacts Micrologic control units accessories For more in depth information see the Micrologic control units control unit user manual m standard equipment m depending on the one per device model control units offer m part numbers in addition long time rating plug and o fault indications connectors not included ri measurement of E51329A see below electrical parameters Micrologic 2 0 33069 current voltage power Micrologic 5 0 33070 etc Micrologic 2 0A 33071 O harmonic analysis Micrologic 5 0A 33072 o communication Micrologic 6 0A 33073 Micrologic 7 0A 33074 Micrologic 5 0P
5. Type of device WER A L circuit breaker or switch disconnector u u m E60055A A NT12 H1 Rated insulation level Ui 1000v S imp 12kv SS Impulse withstand voltage E ui Eee cu ultimate breaking capacity 220 440 e 42 480 690 e 42 Rated operational voltage Ics rated service breaking capacity Ics 100 Icu Icw 42kA 0 5s_ cat B IEC 60947 2 50 60Hz UTE VDE BS CEI UNE AS a N Frequency Standards Rated short time withstand current Schneider Electric ET Masterpact NT 3 Masterpact NT Schneider Electric A VV AVG 1 g d NR li eem Le A A Z Ms DAY W Z A L S i Le The drawout version is mounted on a chassis and the fixed version is installed Masterpact circuit breakers are available in drawout and fixed versions using fixing brackets Drawout version Discovering Masterpact VLI2ELS3 Fixed version Vecelsa Schneider Electric LE Masterpact NT E60056A Chassis Auxiliary terminal shield Carriage switch terminals ON OFF indication contact terminals Control auxiliary terminals Arc chute cover Terminals for control unit and fault trip _ TS IQ indication contacts e Carriage switch em ASS Aue E T g Q 9 Carrying grip r Racking interlock Locking by keylocks Locking by padlocks Connected test or disconnected
6. circuit breakers one indicates device opening additional SDE 2 contact due to an electrical fault per device m not available for switch disconnector versions m not compatible with the Res option m part numbers connectors not included see below o standard 47078 r1 low level 47079 m part numbers for connectors O for fixed device 47074 o for drawout device 33098 EJ Masterpact NW08 63 m changeover contact m breaking capacity at cos 0 3 AC12 DC12 as per 947 5 1 O standard minimum current 10 mA 24 V V AC 240 380 5A rms 480 5 A rms 690 3 A rms VDC 2448 3A 125 0 3 A 250 0 15 A o low level minimum current 1 mA 4 V VAC 24 48 3A rms 240 3 A rms 380 3 A rms VDC 24 448 3A 125 0 3A 250 0 15 A Schneider Electric E60050A E51332A Discovering Masterpact s accessories Indication contacts Electrical reset after fault trip Res m optional equipment one Res per device m not compatible with the SDE 2 option m part numbers connectors not included see below r1 110 130 V AC 47082 r1 220 240 V AC 47083 m part numbers for connectors O for fixed device 47074 o for drawout device 33098 m the contact remotely resets the device following tripping due to an electrical fault Springs charged limit switch contact CH m the contact indicates the charged status of the operating mechanism m equipment included w
7. 47058 Micrologic 6 0P 47059 Micrologic 7 0P 47060 Micrologic 5 0H 47061 Micrologic 6 0H 47062 Micrologic 7 0H 47063 m part numbers for connectors for A P H O for fixed device 47065 o for drawout device 47066 Long time rating plugs m standard equipment m the plugs determine one per control unit the setting range for the B part numbers for long time protection setting options O standard 0 4 to 1 x Ir setting 33542 o low 0 4 to 0 8 x Ir setting 33543 O high 0 8 to 1 x Ir setting 33544 o off no long time protection 33545 M2C and M6C programmable contacts m optional equipment B contacts can be m M2C 2 contacts used with Micrologic P programmed using the 5 A 240 V and H control units keypad on the control m M6C 6 contacts m part numbers unit or via the COM 5 A 240 V connectors not included option B permissible load on see below m they indicate each of the M6C relay o 2 M2C contacts 47099 othe type of fault outputs at cos 0 7 o 6 M6C contacts 33104 ninstantaneous or r240V AC 5A m part numbers for delayed threshold o 380 V AC 3A connectors overruns 024VDC 1 8A O for fixed device 47074 O48VDC 1 5A o for drawout device o 125 V DC 0 4A 33098 o 250 V DC 0 15 A m M2C 24 V DC 596 power from control unit m M6C 24 V DC 5 external supply m maximum consumption 100 mA EJ Masterpact NT Schneider Electric E60054A Indication contacts ON OFF indi
8. locking kit B one or two keylocks per locking kit B part numbers r1 Ronis 1 keylock 41940 r1 Profalux 1 keylock 42888 Masterpact NT Schneider Electric Discovering Masterpacts Chassis accessories accessories Top shutter closed Bottom shutter closed Safety shutters 5 m optional equipment m mounted on the m P 20 for chassis 5 m part numbers set of chassis the safety connections shutters for top and shutters automatically m IP 40 for the bottom drawout block access to the disconnecting contact front rear connection disconnecting contact cluster o 3 poles 33765 cluster when the device O 4 poles 33766 is in the disconnected or test positions If specified when ordering the chassis this Circuit breaker locking in disconnected position locking function may be adapted to operate 9 P in all positions connected test and sis an 0 me n one locking system per chassis and accessible disconnected instead of in device with the door closed this disconnected position alone m part numbers keylocks system locks the circuit not included breaker in disconnected O for Profalux keylocks position using one or two 33769 keylocks O for Ronis keylocks 30770 o for Castell keylocks 33771 o for Kirk keylocks 33772 Keylocks required with the disconnected position locking system E51286A E51273A B one or two keylocks per locking system
9. 77 415 33179 440 480 33193 33179 o DC 24 30 33185 48 60 33186 100 125 33187 200 250 33188 m part numbers for connectors O for fixed device 47074 o for drawout device 33098 m the gear motor automatically charges the spring mechanism m power supply OV AC 50 60 Hz 48 60 100 130 200 240 277 400 440 480 OV DC 24 30 48 60 100 125 200 250 B operating threshold 0 85 to 1 1 Un m consumption 180 VA or W m inrush current 2 to 3 In for 0 1 second m charging time 3 seconds max B operating rate maximum 3 cycles per minute m CH contact see page 32 Opening releases MX 1 and MX 2 closing release XF m optional equipment 1 or2 MX releases per device 1 XF per device m the function MX or XF is determined by where the coil is installed m part numbers connectors not included see below V AC 50 60 Hz V DC O standard version 12 DC 33658 24 30 AC DC 33659 48 60 AC DC 33660 100 130 AC DC 33661 200 250 AC DC 33662 240 277 AC 33663 380 480 AC 33664 500 550 AC 33665 O communicating version with COM option 12 DG 33032 24 30 AC DC 33033 48 60 AC DC 33034 100 130 AC DC 33035 200 250 AC DC 33036 240 277 AC 33037 380 480 AC 33038 m part numbers for connectors O for fixed device 47074 o for drawout device 33098 EJ Masterpact NT m the MX release instantaneously opens the circuit breaker when energised m the XF release instantaneou
10. E SDE1 Fault trip indication contact supplied as standard Z4 ZSI IN ST short time Z5 ZSI IN GF earth fault MN Undervoltage release H H ii M1 Vigi module input Micrologic 7 or MX2 Shunt release a E H UC2 T1 T2 T3 T4 external neutral H u E M2 M3 Vigi module input MX1 Shunt release standard or communicating Micrologic 7 XF Closing release standard or communicating u H E UC3 F2 F1 external 24 V DC power supply PF Ready to close contact VN external voltage connector MCH Gear motor H El UC4 V1 V2 V3 optional external voltage connector or Bi il M2C 2 programmable contacts internal Note relay ext 24 V DC power supply When communicating MX or XF releases are used the third wire required C3 A3 must be connected even if the communications module is or not installed M6C 6 programmable contacts external relay ext 24 V DC power supply required A Digital ammeter P A power meter programmable protection H P harmonics LJ Masterpact NT Schneider Electric Indication contacts C9 open C9 closed QI scr ON cst N YT WN c 1 Indication contacts E60068A 4 31 2 1 6 44 34 24 14 Olg o 4 3e 22 12 Oo 606_06 41 31 21 11 Indication contacts OFA OF3 OF2 OF1 ON OFF indication contacts Chassis contacts C9 disconnected C9 connected C9 test a it QN A IA m e SNAN t iN cO 100 co C CO CO CO CO nm Oo o CT1 CD2
11. MASTERPACT NT Low Voltage Products User manual _ Sa Af TILES TE ecco En en EINEN m D TiN N XX ec a Schneider Electric We do more with electricity User manual for Masterpact NT circuit breakers Discovering Masterpact Using Masterpact Understanding the controls and indications Charging the circuit breaker Closing the circuit breaker Opening the circuit breaker Resetting after a fault trip Locking the controls Using the Masterpact drawout chassis Identifying the circuit breaker positions Racking Matching a Masterpact circuit breaker with its chassis Locking the switchboard door Locking the circuit breaker in position Locking the safety shutters Identifying the electrical auxiliaries Identification of the connection terminals Operation Electrical diagrams Discovering Masterpact s accessories Micrologic control units Indication contacts Auxiliaries for remote operation Device mechanical accessories Chassis accessories Inspecting and testing before use Initial tests What to do when the circuit breaker trips Maintaining Masterpact performance Hecommended maintenance program Maintenance operations Ordering replacement parts Troubleshooting and solutions Checking Masterpact operating conditions E Masterpact NT E51299A Discovering Masterpact Rating plate Rated current x 100 A Performance level Suitability for isolation
12. ales Support MCH gear motor m user mechanical interlocks m user connecting rod m Schneider After Sales springs Support MX MN XF m user O see page 43 O see page 43 D see page 9 O see pages 10 and 11 Part replacement must be programmed on the basis of the data below listing the service life of the various parts in numbers of O C cycles at the rated current Number of O C cycles at the rated current Arc chutes Connecting rod MX XF MN main contacts springs MCH releases interlocking systems NT08to10 25000 440 V 6000 12500 12500 type H1 690 V 3000 NT12 25000 440 V 6000 12500 12500 type H1 690 V 2000 NT16 25000 440 V 3000 12500 12500 type H1 690 V 1000 NT08to10 25000 440 V 3000 12500 12500 type L1 690 V 2000 Masterpact NT Schneider Electric Maintenance operations Before undertaking any maintenance work Are chutes de energise the installation and fit locks or remove the fixing screws warnings in compliance with all applicable safety standards E60045A E60000A m check the arc chutes o chamber intact O separators not corroded If necessary replace the arc chutes E60001A E60002A B refit the arc chutes and secure with a tightening torque of 1 5 Nm If the control unit has a maintenance Wear of main contacts indicator there is no need to systematically m remove the arc chutes check the contacts m visually check the contacts If necessary contact Schneider After sales sup
13. artments that may be accessed by the operators must be de energised Electrical tests Insulation and dielectric withstand tests must be carried out immediately after delivery of the switchboard These tests are precisely defined by international standards and must be directed and carried out by a qualified expert Prior to running the tests it is absolutely necessary to m disconnect all the electrical auxiliaries of the circuit breaker MCH MX XF MN Res electrical remote reset m remove the long time rating plug on the 7 0 A 5 0 P 6 0 P 7 0 P 5 0 H 6 0 H 7 0 H control units Removal of the rating plug disconnects the voltage measurement input Switchboard inspection Check that the circuit breakers are installed in a clean environment free of any installation scrap or items tools electrical wires broken parts or shreds metal objects etc Conformity with the installation diagram Check that the devices conform with the installation diagram m breaking capacities indicated on the rating plates m identification of the control unit type rating B presence of any optional functions remote ON OFF with motor mechanism auxiliaries measurement and indication modules etc B protection settings long time short time instantaneous earth fault m identification of the protected circuit marked on the front of each circuit breaker Condition of connections and auxiliaries Check device mounting in the s
14. cation contacts OF m standard equipment m OF contacts indicate 4 OF per device the position of the main B part numbers contacts o standard 47076 m they trip when the o low level 47077 minimum isolation m part numbers for distance between the connectors main contacts is reached O for fixed device 47074 O for drawout device 33098 m 4 changeover contacts m breaking capacity at cos Q 0 3 AC12 DC12 as per 947 5 1 O standard minimum current 10 mA 24 V V AC 240 380 6 A rms 480 6 A rms 690 6 A rms VDC 24 48 2 5 125 0 5 250 0 3 o low level minimum current 1 mA 4V V AC 24 48 5A rms 240 5 A rms 380 5 A rms VDC 24 48 5 25A 125 0 5A 250 0 3A Fault trip indication contact SDE 1 m standard equipment on mthe contact provides a circuit breakers one remote indication of SDE 1 contact per device device opening due to an m not available for switch electrical fault disconnector versions m changeover contact m breaking capacity at cos 0 3 AC12 DC12 as per 947 5 1 O standard minimum current 10 mA 24 V V AC 240 380 5A rms 480 5 A rms 690 3 A rms VDC 2448 3A 125 0 3 A 250 0 15 A o low level minimum current 1 mA 4V V AC 24 48 3A rms 240 3 A rms 380 3 A rms VDC 2448 3A 125 0 3A 250 0 15 A Additional fault trip indication contact SDE 2 B optional equipment for m the contact remotely
15. clusters m part number 1 can 33160 LI Masterpact NT Schneider Electric LJ Masterpact NT Schneider Electric Maintaining Masterpact performance circuit breaker cannot be closed remotely or locally circuit breaker cannot be closed remotely can be opened locally using the closing pushbutton unexpected tripping pushbutton indicator signalling a fault trip not activated unexpected tripping pushbutton indicator signalling a fault trip activated instantaneous opening after each attempt to close the circuit breaker indicated by the pushbutton indicator signalling a fault trip circuit breaker cannot be opened remotely can be opened locally circuit breaker cannot be recharged electrically can be charged manually Troubleshooting and solutions B circuit breaker padlocked or keylocked in the open position B circuit breaker interlocked B circuit breaker not completely connected m pushbutton indicator signalling a fault trip has not been reset B circuit breaker not charged spring mechanism m MX shunt release supplied with power m MN undervoltage release activated m the XF closing release continuously supplied with power but circuit breaker not ready to close XF not wired in series with PF contact m XF closing release not supplied with enough power m MN undervoltage release supply voltage too low m load shedding order sent by another device m untimely opening order from the MX shun
16. e Masterpact device before putting it back into service o see the user manual of the control unit D reset the pushbutton O modify the distribution system or the control unit settings O check the condition of the Masterpact device before putting it back into service o reset the pushbutton o clear the fault O check the condition of the Masterpact device before putting it back into service o reset the pushbutton O check the voltage and the supply circuit U gt 0 85 Un O drop in voltage insufficient or residual voltage gt 0 35 Un across the terminals of the undervoltage release O check the voltage and the supply circuit U gt 0 85 Un Schneider Electric circuit breaker cannot be disconnected racked out impossible to insert the crank circuit breaker cannot be disconnected racked out operation impossible circuit breaker cannot be removed from chassis circuit breaker cannot be connected racked in circuit breaker cannot be locked in disconnected position circuit breaker cannot be locked in connected test or disconnected position m chassis locking or racking interlock function enabled m the reset button has not been pressed Bi circuit breaker not in disconnected position m the rails are not completely out m mismatch protection m the safety shutters are locked m the disconnecting contact clusters are incorrectly positioned m chassis locking enabled m the reset button has not been press
17. ed B the circuit breaker is not sufficiently inserted m the circuit breaker is not in the right position m the crank is still in the chassis m check that the right types of locks have been installed B the circuit breaker is not in the right position m the crank is still in the chassis Masterpact NT O disable the locking function O press the reset button r1 turn the crank until the circuit breaker is in disconnected position and the reset button out O pull the rails out completely r1 check that the chassis corresponds with the circuit breaker r1 remove the lock s o reposition the clusters O disable the chassis locking function O press the reset button D insert the circuit breaker completely so that it is engaged in the racking mechanism O check the circuit breaker position by making sure the reset button is out r1 remove the crank and store it O contact our service centre r1 check the circuit breaker position by making sure the reset button is out O remove the crank and store it Schneider Electric Checking Masterpact operating conditions E60003A PIN E60004A E60005A Ambient temperature Masterpact NT devices can operate under the following temperature conditions m the electrical and mechanical characteristics are stipulated for an ambient temperature of 5 C to 70 C B circuit breaker closing is guaranteed down to 35 C
18. er 38858 closes off the door cut out of a cubicle not yet equipped with a device It may be used with the escutcheon for both fixed and drawout devices EI Masterpact NT Schneider Electric E60347A E60346A E60348A E51286A Profalux E51287A Device mechanical accessories Transparent cover for pushbutton locking using a padlock lead seal or screws m optional equipment m the transparent cover one locking cover per blocks access together device or separately to the m part number 33897 pushbuttons used to open and close the device m locking requires a padlock a lead seal or two screws Device locking in the OFF position using a padlock m optional equipment m the unit inhibits local or one locking system per remote closing of the device device m part number 47514 m up to three padlocks may be used for locking Device OFF position locking kit for keylocks B optional equipment m the kit inhibits local or one locking kit without remote closing of the keylock per device device B part numbers m mounted on the o for Profalux keylocks chassis and accessible 47515 with the door closed this O for Ronis keylocks system locks the circuit 47516 breaker in disconnected o for Castell keylocks position using one or two 47517 keylocks O for Kirk keylocks 47518 m optional equipment one locking system per device Keylocks required for the device OFF position
19. g a short circuit m check the arc chutes see page 43 m check the contacts see page 43 m check the tightness of connections see the device installation manual m check the disconnecting contact clusters see page 43 Reset the circuit breaker The circuit breaker can be reset locally or remotely See page 12 in this manual for information on how the circuit breaker can be reset a Masterpact NT Schneider Electric Maintaining Masterpact performance Recommended program for devices used under normal operating conditions Ambient temperature 5 C 70 C Normal atmosphere Recommended maintenance program Periodic inspections required each year B open and close the device o see pages 10 and 11 locally and remotely successively using the various auxiliaries m test the operating sequences D see pages 10 and 11 B test the control unit using O see the user manual of the mini test kit the control unit every two years or m check the arc chutes O see page 43 when the control unit m check the main contacts O see page 43 maintenance indicator m check the tightness O see the device reaches 100 of connections installation manual Parts requiring replacement depending on the number of operating cycles The following parts must be replaced periodically to lengthen the service life of the device maximum number of operating cycles arc chutes main contacts B user B inspection user B replacement Schneider After S
20. he key cannot be removed Three types of keylocks are available RONIS PROFALUX CASTELL LI Masterpact NT Schneider Electric Using the Masterpact Identifying the circuit breaker drawout chassis positions The indicator on the front signals the position of the circuit breaker in the chassis E51451A B test position E51454A E60073A e 9 m ICH SS e e B disconnected position E51455A e 9 oT BIS gt inl LI Masterpact NT Schneider Electric Racking These operations require that all Prerequisites chassis locking functions be disabled To connect and disconnect Masterpact the crank must be used The locking see page 22 systems padlocks and the racking interlock all inhibit use of the crank Withdrawing the circuit breaker from the connected to test position then to disconnected position The circuit breaker is in connected position The circuit breaker is in test position E51457A The circuit breaker is in test position The circuit breaker is in Hemove the crank or continue to disconnected position disconnected position Masterpact NT Schneider Electric Using the Masterpact Racking drawout chassis For complete information on Masterpact Removing the rails handling and mounting see the installation Press the release tabs Press the release tabs to push manual s and pull the rails
21. i closed j open I closed CE connected position carriage switch CT test position carriage switch CD disconnected position carriage switch Masterpact NT Schneider Electric Identifying the electrical Electrical diagrams auxiliaries Fixed and drawout devices The diagram is shown with circuits de energised all devices open connected and charged and relays in normal position Power Control unit Remote operation nn rn i g 198 Power upstreamcb downstream cb N m ro z um 1m N Li L2 L3 AE E is y ES 18S 45 vl LO N N N N i Po 4 C9 AT I BPF C9 C9 a LE ea E60062A E60063A 1 E60064A Ki E60065A ar T E46136A E46137A E60066A 2540 4 E60067A G amp 5 O O x ia Control unit Remote operation Com UC1 UC2 UC3 UC4 M2C M6C SDE2 Res MN MX2 MX1 XF PF MCH amp olo olo OO O16 88 0 oo O0 olo olo oG o olo 215 olo o E5 E6 Z5 M1 M2 M3 F2 V3 484 Q3 184 K2 84 D2 C12 C2 A2 254 B2 oolo olo old 66 866 o 6 6 66 06 j E3 E4 Z3 Z4 T3 T4 VN V2 474 Q2 182 82 DS A3 252 B3 amp olo olo olo j 66 6 6 6 05 6 6 od Id old ojd old o E1 E2 Z1 2 T1 T2 Fi Vi 471 Qf 181 Ki 81 Di C11 C1 At 251 B1 A P H Control unit Remote operation E E Com E1 E6 communication SDE2 Fault trip indication contact or H E m UC1 Z1 Z5 zone selective interlocking Res Remote reset Z1 ZSI OUT SOURCE Z2 ZSI OUT Z3 ZSI IN SOURC
22. icated as follows The springs in the circuit breaker operating mechanism must be charged to store the energy required to close the main contacts The springs may be charged manually using the charging handle or automatically by the optional MCH gear motor Manual charging Automatic charging Pull the handle down six If the MCH gear motor is times until you hear a installed the spring is clack automatically recharged after each closing E51347A E46790A P TEM OK Or Www charged OK um Masterpact NT Schneider Electric Using Masterpact Closing the circuit breaker Device ready to close Closing conditions Closing i e turning the circuit ON is possible only if the circuit breaker is ig WM charged ready to close OK The prerequisites are the following m device open OFF Device not ready to close m springs charged lt B no opening order present 3 www charged 7 eK The circuit breaker will not close unless it is ready to close when the order is given Closing the circuit breaker Locally mechanical Press the mechanical ON pushbutton E60047A E51493A Locally electrical BPFE XF Press the electrical closing pushbutton By adding an XF closing release the circuit breaker can be closed locally E60049A E51294A Remotely When connected to a remote control panel the XF closing release can be used to close the circuit breaker remotely
23. ith MCH gear motor one CH contact per m changeover contact m breaking capacity 50 60 Hz for AC power device springs charged AC12 DC12 as per 947 5 1 V AC 240 10A rms 380 6 A rms 480 6 A rms 690 3 A rms VDC 24148 3A 125 0 5A 250 0 25 A Ready to close contact PF m the contact indicates that the device may be closed because all the following are valid o circuit breaker is open O spring mechanism is B optional equipment one PF contact per device B part numbers connectors not included see below m changeover contact m breaking capacity at COS 0 3 AC12 DC12 as per 947 5 1 O standard minimum current 10 mA 24 V r1 standard 47080 charged V AC 240 380 5A rms o low level 47081 o a maintained closing 480 5 A rms m part numbers for order is not present 690 3 A rms connectors o a maintained opening V DC 24 48 3A o for fixed device 47074 order is not present 125 0 3 A o for drawout device 250 0 15 A 33098 o low level minimum current 1mA 4AV V AC 24 48 3A rms 240 3 A rms 380 3 A rms VDC 24 448 3A 125 0 3A 250 0 15 A EJ Masterpact NT Schneider Electric E46790A E51294A Auxiliaries for remote operation Gear motor MCH m optional equipment one MCH gear motor per device m part numbers connectors not included see below o AC 50 60 Hz 48 60 33186 100 130 33176 200 240 33177 2
24. les 33764 Connected disconnected and test position carriage switches CE CD CT m optional equipment m the carriage switches one to six carriage indicate the three switches positions m standard configuration CE connected position 0 to 3 CE 0 to 2 CD CD disconnected 0to 1 CT position when the B part numbers minimum isolation o standard 33170 distance between the o low level 33171 main contacts and the auxiliary contacts is reached CT test position EJ Masterpact NT m changeover contact m breaking capacity at cos 0 3 AC12 DC12 as per 947 5 1 O standard minimum current 10 mA 24 V V AC 240 8 A rms 380 8 A rms 480 8 A rms 690 6 A rms VDC 24 48 25A 125 0 8 A 250 0 3 A o low level minimum current 1mA 4V VAC 24 48 5A rms 240 5 A rms 380 5 A rms VDC 24 48 25A 125 0 8A 250 0 3A Schneider Electric Inspecting and testing before use These operations must be carried out in particular before using a Masterpact device for the first time Initial tests Procedure A general check of the circuit breaker takes only a few minutes and avoids any risk of mistakes due to errors or negligence A general check must be carried out B prior to initial use m following an extended period during which the circuit breaker is not used A check must be carried out with the entire switchboard de energised In switchboards with compartments only those comp
25. logical paper Designed by Headlines Printed by 01 00
26. m Masterpact NW without the control unit can be stored in an ambient temperature of 40 C to 85 C m the control unit can be stored in an ambient temperature of 25 C to 85 C Extreme atmospheric conditions Masterpact NT devices have successfully passed the tests defined by the following standards for extreme atmospheric conditions m IEC 68 2 1 dry cold at 55 C m IEC 68 2 2 dry heat at 85 C m IEC 68 2 30 damp heat temperature 55 C relative humidity 95 m IEC 68 2 52 level 2 salt mist Masterpact NT devices can operate in the industrial environments defined by standard IEC 947 pollution degree up to 4 It is nonetheless advised to check that the devices are installed in suitably cooled switchboards without excessive dust Vibrations Masterpact NT devices resist electromagnetic or mechanical vibrations Tests are carried out in compliance with standard IEC 68 2 6 for the levels required by merchant marine inspection organisations Veritas Lloyd s etc B 2 to 13 2 Hz amplitude 1 mm m 13 2 to 100 Hz constant acceleration 0 7 g Excessive vibration may cause tripping breaks in connections or damage to mechanical parts LJ Masterpact NT Schneider Electric E60006A E60007A 2000 m Altitude Masterpact NT devices are designed for operation at altitudes under 2000 metres At altitudes higher than 2000 metres the modifications in the ambient air electrical resis
27. optional equipment m the unit delays m power supply V AC 50 1 MN with delay unit per operation of the MN 60 Hz V DC device release to eliminate m delay unit part circuit breaker nuisance numbers tripping during short V AC 50 60 Hz V DC O non adjustable 100 130 AC DC 33684 200 250 AC DC 33685 r1 adjustable 48 60 AC DC 33680 100 130 AC DC 33681 200 250 AC DC 33682 380 480 AC DC 33683 voltage dips B the unit is wired in series with the MN and must be installed outside the circuit breaker O non adjustable 100 130 200 250 r1 adjustable 48 60 100 130 200 250 380 480 B operating threshold o opening 0 35 to 0 7 Un o closing 0 85 Un m consumption o pick up 200 VA or W 80 ms r1 hold 4 5 VA or W B circuit breaker response time at Un o non adjustable 0 25 second r1 adjustable 0 5 0 9 1 5 3 seconds Electrical closing pushbutton BPFE m optional equipment 1 BPFE per device m part number 47512 m located on the padlock or keylock locking system this pushbutton carries out electrical closing of the circuit breaker via the XF release taking into account all the safety functions that are part of the control monitoring system of the installation B it connects to the input of the COM option EI Masterpact NT Schneider Electric Wiring of control auxiliaries Under pick up conditions the level of consumption is approximately 150 to 200 VA Consequently fo
28. or MN undervoltage Auxiliary contact terminals release OF ON OFF indication contacts Terminals for control unit and fault PF ready to close contact indication contacts Operating mechanism SDE 1 fault trip indication contact charging handle Carrying grip N MCH gear motor for electrical charging of the operating mechanism Keylock for locking in open position BPFE electrical closing pushbutton Side plate for fixed device 7 Padlock for locking in open position Closing pushbutton SDE 2 fault trip indication contact DER pus or Res electrical remote reset pening pushbutton Operation counter Control unit Front 0059A Trip indication button used to reset before closing NE a Rating plate Locking by padlock lead seal cover or screws for pushbuttons Springs charged and Ready Indicator for position of the to close indicator main contacts Masterpact NT Schneider Electric E51344A Using Masterpact Understanding the controls and indications Circuit breaker open and Circuit breaker closed and discharged discharged E51488A E51489A Circuit breaker open Circuit breaker closed and charged and not ready charged to close E51490A E51491A Circuit breaker open charged and ready to close E51492A LE Masterpact NT Schneider Electric E60072A Charging the circuit breaker The charge status is ind
29. out the rails in Before mounting the circuit breaker make sure it matches the chassis E51458A E51459A Inserting Masterpact Position the circuit breaker on the rails Open the circuit breaker Check that it rests on all four supports in any case it opens automatically during connection E51460A E51497A If you cannot insert the circuit breaker in Push the circuit breaker into the chassis taking care not to push on the control unit the chassis check that the mismatch protection on the chassis corresponds to that on the circuit breaker E60034A E51461A E60033A LI Masterpact NT Schneider Electric Racking the circuit breaker from the disconnected to test position then to connected position The device is in disconnected position The device is in test position E51462A The device is in test position The device is in Remove the crank or continue to connected position connected position LI Masterpact NT Schneider Electric Using the Masterpact Matching a Masterpact circuit drawout chassis breaker with its chassis To set up a mismatch prevention The mismatch protection ensures that a circuit breaker is installed only in a chassis combination for the circuit breaker and the W th compatible characteristics chassis see the mismatch prevention The possible combinations are listed below installation manual E60052A LJ Ma
30. port If the contacts are worn have the concerned poles replaced by the Schneider service centre Disconnecting contact clusters m grease the contacts using the grease listed on page 44 supplied by Schneider Electric m check the contacts as follows o open the circuit breaker o de energise the busbars o disconnect the circuit breaker O remove the circuit breaker r1 check the contact fingers no sign of copper should be visible Replace any worn clusters LJ Masterpact NT Schneider Electric E60002A E60349A E60496A E51336A E46237A Maintaining Masterpact performance Ordering replacement parts Electrical accessories The electrical accessories that may require replacement are the following m MCH gear motor m MX opening release s m XF closing release m MN undervoltage release See pages 33 and 34 in the Auxiliaries for remote operation section for their characteristics and part numbers Arc chutes B part numbers B one chute per pole 1 arc chute O type H1 47095 o type L1 47096 Front B part number 47094 B 1 per 3 or 4 pole device Charging handle m part number 1 handle m1 per device 47092 Crank m part number 1 crank B 1 per device 47098 Support for MX XF MN releases B part number 47093 B 1 per device Disconnecting contact clusters m part number 1 cluster 33166 Grease for disconnecting contact
31. r Top and bottom shutters not Top shutter not locked locked Bottom shutter locked le k D d MM umm gt ss Top shutter locked Top and bottom shutters locked Bottom shutter not locked E60026A LI Masterpact NT Schneider Electric Identifying the electrical Identification of the connection auxiliaries terminals Layout of terminal blocks E60044A IMa F2 asaiva 1842 84 DB CI2 C2 A2 254 B2 B3 Bi avs B2 B3 Bi LJ Masterpact NT Schneider Electric Operation The ON OFF indication contacts signalthe Circuit breaker status of the device main contacts lt g completely closed completely open closed open main contacts OF ON OFF closed open open closed indication changeover contacts closed open The carriage switches indicate the Chassis connected test and disconnected For information on the separation distance of the main circuits in the test and positions disconnected positions see page 16 completely connected E60061A separation of the main circuits test position separation of the auxiliary circuits completely disconnected open
32. r low supply voltages 12 24 48 V cables must not exceed a maximum length determined by the supply voltage and the cross section of the cables Indicative values for maximum cable lengths in meters 2 5 mm 1 5 mm 2 5 mm 1 5 mm 2 5 mm 1 5 mm MN 100 source voltage 58 36 280 165 8596 source voltage 16 10 75 45 MX XF 100 source voltage 21 12 115 70 550 330 85 source voltage 10 6 79 44 350 210 Note The indicated length is that for each of the two supply wires EI Masterpact NT Schneider Electric E47341A E60499A E60497A E60498A Discovering Masterpact s accessories Device mechanical accessories Operation counter CDM m optional equipment m the operation counter one CDM per device sums the number of B part number 33895 operating cycles Escutcheon CDP m optional equipment m the CDP increases the one CDP per device degree of protection to IP m part numbers 40 and IK 07 fixed and O for fixed device 33718 drawout devices r1 for drawout device 33857 Transparent cover CCP B optional equipment m mounted with a CDP one CCP per device the CCP increases the equipped with a CDP degree of protection to B part number 38859 IP 54 and IK 10 fixed for drawout devices and drawout devices Blanking plate OP B optional equipment m used with the one OP per device escutcheon this option m part numb
33. reset option not compatible with an SDE 2 E60048A E60050A E Masterpact NT Schneider Electric E60013A E60014A E60017A E60018A Locking the controls Disabling circuit breaker local closing and opening Pushbutton locking using a padlock shackle diameter 5 to 8 mm a lead seal or screws Padlock Lead seal Screws E60015A E60016A Locking Close the covers Insert the padlock shackle lead seal or screws E60018A Unlocking Remove the padlock Lift the covers and swing The pushbuttons are no lead seal or screws them down longer locked E60019A E60020A LI Masterpact NT Schneider Electric Using Masterpact E51446A E51447A Locking the controls Disabling local and remote closing Combination of locking systems To disable local and remote circuit breaker closing use as needed one to three padlocks or a keylock Install one to three padlocks maximum shackle diameter 5 to 8 mm Locking Open the circuit breaker Pull out the tab Insert the padlock shackle E51350A E51362A Check The closing control is inoperative Unlocking Remove the padlock LI Masterpact NT Schneider Electric Locking the controls with a keylock Locking Open the circuit breaker Turn the key Remove the key Check The closing control is inoperative Unlocking Insert the key Turn the key T
34. sconnected position alone Locking Circuit breaker in disconnected Pull out the tab position E51470A Insert the shackle max diameter 5 to 8 mm of the padlock s E51472A Unlocking Remove the padlock s E51473A E51475A EJ Masterpact NT Schneider Electric Padlocks and keylocks may be used together Locking the circuit breaker in position Disabling connection when the circuit breaker is in disconnected position using one or two keylocks Locking Circuit breaker in Turn the key s disconnected position E60053A E51476A The crank cannot be inserted 1 K E51477A E60023A Unlocking Insert the key s Turn the key s The crank can be inserted E51478A E51479A E51487A Three types of keylocks are available RONIS PROFALUX CASTELL E51270A E51271A L3 Masterpact NT Schneider Electric Using the Masterpact drawout chassis Locking the circuit breaker when the door is open E60024A 6 Y jo H A W M When the door is open the crank cannot When the door is closed the crank be inserted can be inserted E51495A E51496A LI Masterpact NT Schneider Electric Locking the safety shutters Padlocking inside the chassis Four locking possibilities using one or two padlocks maximum shackle diameter 5 to 8 mm for each shutte
35. sly closes the circuit breaker when energised if the device is ready to close B power supply OV AC 50 60 Hz 24 48 100 130 200 250 240 277 380 480 500 550 OV DC 12 24 30 48 60 100 130 200 250 B operating threshold o XF 0 85 to 1 1 Un r1 MX 0 7 to 1 1 Un m consumption o pick up 200 VA or W 80 ms r1 hold 4 5 VA or W B circuit breaker response time at Un O XF 55 ms 10 o MX 50 ms 10 Schneider Electric E51294A E51296A E60344A Discovering Masterpact s accessories Auxiliaries for remote operation Instantaneous undervoltage releases MN m the MN release instantaneously opens the circuit breaker when its supply voltage drops m optional equipment 1 MN per device m not compatible with the MX 2 opening release m part numbers connectors not included see below V AC 50 60 Hz V DC 24 30 AC DC 33668 48 60 AC DC 33669 100 130 AC DC 33670 200 250 AC DC 33671 380 480 AC 33673 500 550 AC 33674 m part numbers for connectors m power supply r1 V AC 50 60 Hz 24 48 100 130 200 250 240 277 380 480 500 550 OV DC 24 30 48 60 100 130 200 250 B operating threshold o opening 0 35 to 0 7 Un O closing 0 85 Un m consumption o pick up 200 VA or W 80 ms r1 hold 4 5 VA or W B circuit breaker response time at Un O for fixed device 47074 40 ms 10 o for drawout device 33098 Delay unit for MN releases B
36. sterpact NT Schneider Electric E51464A E51465A E51468A Locking the switchboard door The locking device is installed on the left or right hand side of the chassis m when the circuit breaker is in connected or test position the latch is lowered and the door is locked m when the circuit breaker is in disconnected position the latch is raised and the door is unlocked SD 2 9o f N Disabling door opening Close the door Put the Masterpact in The door is locked test or connected position E51466A E51467A Enabling door opening Put the Masterpact in The door is unlocked disconnected position E51469A a Masterpact NT Schneider Electric Using the Masterpact Locking the circuit breaker in drawout chassis position Padlocks and keylocks may be used Combination of locking systems together To disable connection of the circuit breaker in disconnected position in the chassis use as needed B one to three padlocks B one or two keylocks m a combination of the two locking systems If specified when ordering the chassis this i Disabling connection when the circuit breaker is in locking function may be adapted to operate g disconnected position using one to three padlocks in all positions connected test and maximum shackle diameter 5 to 8 mm disconnectea instead of in di
37. t release m overload m earth fault m short circuit m thermal memory B transient overcurrent when closing B closing on a short circuit m opening order not executed by the MX shunt release m opening order not executed by the MN undervoltage release m insufficient supply voltage for the MCH gear motor LJ Masterpact NT O disable the locking function r1 modify the situation to release the interlock o terminate racking in connection of the circuit breaker o reset the pushbutton indicator O if the circuit breaker is not equipped with an MCH gear motor charge it manually n if it is equipped with an MCH gear motor check the supply of power to the motor o there is an opening order Determine the origin of the order The order must be cancelled before the circuit breaker can be closed o there is an opening order Determine the origin of the order O check the voltage and the supply circuit U 0 85 Un o cut the supply of power to the XF closing release then send the closing order again via the XF but only if the circuit breaker is ready to close r1 check the voltage and the supply circuit U gt 0 85 Un r1 check the voltage and the supply circuit U 0 85 Un O check the overall load on the distribution system D if necessary modify the settings of devices in the installation O determine the origin of the order o determine and clear the causes of the fault O check the condition of th
38. tance cooling capacity lower the following characteristics altitude m 2000 3000 4000 5000 dielectric withstand 3500 3150 2500 2100 voltage V rated insulation level V 1000 900 700 600 rated operational 690 590 520 460 voltage V rated current A at40 C ixIn 0 99 x In 0 96 x In 0 94 x In Electromagnetic disturbances Masterpact NT devices are protected against m overvoltages caused by devices that generate electromagnetic disturbances B overvoltages caused by an atmospheric disturbance or by a distribution system outage e g failure of a lighting system m devices emitting radio waves radios walkie talkies radar etc m electrostatic discharges produced by users Masterpact NT devices have successfully passed the electromagnetic compatibility tests EMC defined by the following international standards m IEC 947 2 appendix F m IEC 947 2 appendix B trip units with earth leakage function The above tests guarantee that B no nuisance tripping occurs E tripping times are respected LJ Masterpact NT Schneider Electric Schneider Electric Industries SA 5 rue Nadar 92506 Rueil Malmaison Cedex France Te 33 0 1 41 29 82 00 Fax 33 0 1 47 51 80 20 http www schneiderelectric com 51201116AA A As standards specifications and designs develop from time always ask for confirmation of the information given in this publication eS This document has been printed on eco
39. witchboard and the tightness of power connections Check that all auxiliaries and accessories are correctly installed m electrical auxiliaries m terminal blocks B connections of auxiliary circuits Operation Check the mechanical operation of the circuit breakers B opening of contacts m closing of contacts Check on the control unit Check the control unit of each circuit breaker using the respective user manuals LJ Masterpact NT Schneider Electric What to do when the circuit breaker trips Note the fault Faults are signalled locally and remotely by the indicators and auxiliary contacts installed on circuit breakers depending on each configuration See page 12 in this manual and the user manual of the control unit for information on the fault indications available with your circuit breaker Identify the cause of tripping A circuit must never be reclosed locally or remotely before the cause of the fault has been identified and cleared A fault may have a number of causes m depending on the type of control unit fault diagnostics are available See the user manual for the control unit m depending on the type of fault and the criticality of the loads a number of precautionary measures must be taken in particular the insulation and dielectric tests on a part of or the entire installation These checks and test must be directed and carried out by qualified personnel Inspect the circuit breaker followin
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