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MASTERPACT NW08-63Low Voltage Products
User manual
We do more with electricity.
Masterpact NW08-63 Schneider Electric1
Discovering Masterpact 2Using Masterpact 8Understanding the controls and indications 8Charging the circuit breaker 9Closing the circuit breaker 10Opening the circuit breaker 11Resetting after a fault trip 12Locking the controls 13
Using the Masterpact drawout chassis 16Identifying the circuit breaker positions 16Racking 17Matching a Masterpact circuit breaker with its chassis 19Locking the switchboard door 20Locking the circuit breaker in position 21Locking the safety shutters 24
Identifying the electrical auxiliaries 26Identification of the connection terminals 26Electrical diagrams 27Operation 29
Discovering Masterpact's accessories 30Micrologic control units 30Indication contacts 31Auxiliaries for remote operation 33Device mechanical accessories 35Chassis mechanical accessories 37
Inspecting and testing before use 40Initial test 40What to do when the circuit breaker trips 41
Maintaining Masterpact performance 42Recommended maintenance program 42Maintenance operations 43Ordering replacement parts 45Troubleshooting and solutions 46
Checking Masterpact operating conditions 48
User manual for circuit breakersMasterpact NW08-63
Masterpact NW08-63 Schneider Electric2
Discovering Masterpact
The Masterpact NW range of circuit breakers and switch-disconnectorsoffer current ratings from 800 A to 6300 A.Five different performance levels are available:c N1: standard with total discriminationc H1: high performance with total discriminationc H2: a compromise between current limiting and discriminationc H3: high breaking capacity and discrimination, without current limitingc L1: high level of current limiting, with some discrimination.
Rating plate
E60
350A
Ui 1000V
Ics = 100% Icu
220/440 42480/690 42
Icw 42kA/1s cat.B
UTE VDE BS CEI UNE AS NEMAIEC 60947-2 50/60Hz
Ue Icu(V) (kA)
Masterpact
Uimp 12kV
NW08 N1
Rated current x 100 A
Suitability for isolation
Performance level
Rated insulation level
Rated short-time withstand current
Rated operational voltage
Ultimate breaking capacityImpulse withstand voltage
Ics: rated service breaking capacityIcu: ultimate breaking capacity
Type of device:circuit breaker or switch-disconnector
Frequency
Standards
E51
288A
E60
036A
Icu kA at 415 VIcs = 100% Icu150
100
65
42
L1 H3H2
H1
N1
160012001000800 2000 2500 3200 4000 5000 6300
E46
004A
masterpact II
MERLIN GERIN
NX 08 HA10
Ui 1000V Uimp 12kV
Ue690
(V)
50kA/1s
IEC 947-2
50/60Hz
EN 60947-2
UTE VDE BS CEI UNE AS NBMA
Masterpact NW08-63 Schneider Electric3
Masterpact NW08-63 Schneider Electric4
Discovering Masterpact
Masterpact circuit breakers are available in drawout and fixed versions.The drawout version is mounted on a chassis and the fixed version is installedusing fixing brackets
Drawout version
Fixed version
E51
205C
E51
289C
Masterpact NW08-63 Schneider Electric5
Chassis
E60
037A
Carrying grip
Drawout grip
"Connected", "test" or "disconnected"position indicator
Locking by keylocks
Safety shutters
Shutter position indication and locking
Crank storage
Locking by padlocks
Door interlock Crank
Arc-chute cover
Disconnecting-contact cluster
Crank socketPosition release button
Carriage switch terminals
Auxiliary terminal shield
Racking interlock
Mismatchprotection
Shutterlockingblocks
Carriageswitchterminals
Carriage switchterminals
Control-unitcontact terminals
Controlauxiliaryterminals
ON/OFFindicationcontactterminals
Masterpact NW08-63 Schneider Electric6
Circuit breaker / switch-disconnector
E60
038A
MCH gear motor forelectrical charging ofthe operating mechanism
Operating-mechanismcharging handle
PF "ready to close"contact
SDE/2 "fault-trip"indication contactor Res electricalremote reset
Terminal block forthe control unit andthe SDE contact(s)
MX/2 opening release orMN undervoltage release
XF closing release
MX/1 opening release
Closing pushbutton
Opening pushbutton
Operation counter
Carrying grip
SDE/1 "fault-trip"indication contact
Arc chute
Block of 4 OF "ON/OFF"indication contacts
Terminal block forthe control auxiliaries
2 Blocks of 4 additional OF"ON/OFF" contacts or EF combined"connected/closed" contacts
Keylocking kit
Locking by padlocks
BPFE electrical closing pushbutton
Control unit
Terminal block for the ON/OFFindication contacts
Discovering Masterpact
Masterpact NW08-63 Schneider Electric7
Front
E60
039A
RESET
Indicator for positionof the main contacts
"Springs charged"and "Ready to close"indicator
Locking by padlockor lead-seal coverfor pushbuttons
Rating plate
Trip indication buttonused to reset before closing
Masterpact NW08-63 Schneider Electric8
Using Masterpact Understanding the controlsand indications
Circuit breaker openand discharged
Circuit breaker closedand discharged
Circuit breaker open,charged and not "ready toclose"
Circuit breaker closed,charged and not "ready toclose"
Circuit breaker open, chargedand "ready to close"
E51
320B
Push OFFO
IPush ON
Push OFFO
IPush ON
Push OFFO
IPush ON
Push OFFO
IPush ON
E51
207A
E51
210A
E51
206A
E51
211
E51
209A
Push OFFO
IPush ON
Test
RESET
Masterpact NW08-63 Schneider Electric9
The charge status is indicated as follows. The springs in the circuit breaker operating mechanism must be charged to storethe energy required to close the main contacts. The springs may be chargedmanually using the charging handle or the optional MCH gear motor.
Manual charging:Pull the handle downsix times until you heara "clack".
Automatic charging:If the MCH gear motor isinstalled, the spring isautomatically rechargedafter each closing.
Test
E60
370A
E51
213A
E51
290A
Charging the circuit breaker
Push OFFO
IPush ON
or
Masterpact NW08-63 Schneider Electric10
Using Masterpact Closing the circuit breaker
Locally (electrical)
Closing conditionsClosing (i.e. turning the circuit ON) is possible only if the circuit breaker is"ready to close".The prerequisites are the following:c device open (OFF)c springs chargedc no opening order present.
If the circuit breaker is not "ready to close" when the order is given, stop the orderand start again when the circuit breaker is "ready to close".
Closing the circuit breaker
Locally (mechanical)Press the mechanical ON pushbutton.
Remotely
Enabling or disabling the anti-pumping functionThe purpose of the mechanical anti-pumping function is to ensure that a circuitbreaker receiving simultaneous opening and closing orders does not open andclose indefinitely.If there is a continuous closing order, after opening the circuit breaker remainsopen until the closing order is discontinued. A new closing order then closes thecircuit breaker. This function can be disabled by wiring the closing release in serieswith the PF "ready to close" contact.
Press the electrical closingpushbutton. By adding anXF closing release, thecircuit breaker can be closedremotely.
BPFE XF
When connected to a remote control panel, the XFclosing release (0.85 to 1.1 Un) can be used to closethe circuit breaker remotely.
XF
Push OFFO
Pus
E51
291A
E51
292A
E51
216A
E51
214A
E51
215A
E51
293A
E51
294A
E51
294A
Device not "ready to close"
Device "ready to close"
Masterpact NW08-63 Schneider Electric11
Opening the circuit breaker
LocallyPress the OFF pushbutton.
RemotelyUse one of the following solutions:c one or two MX opening releases (MX1 and MX2, 0.7 to 1.1 Un)c one MN undervoltage release (0.35 to 0.7 Un)c one MN undervoltage release (0.35 to 0.7 Un) with a delay unit (R or Rr).
When connected to a remote control panel, these releases can be used to openthe circuit breaker remotely.
E51
216A
E51
293A
E51
294
E51
296A
E51
217A
3 6
MNUVR
1012
100/130 V
AC/DC
S
0.5 1
3 1.5
Retardateur de MN
Time delay for UVR
4 5 6
1 2 3
1 2 3
Push
IPush ON
MX1, MX2, MN Delay unit
Masterpact NW08-63 Schneider Electric12
Using Masterpact
The circuit breaker signals a fault by:c a mechanical indicator on the front panelc one or two SDE "fault-trip" indication contacts (SDE/2 is optional).
LocallyIf the circuit breaker is not equipped with the automatic reset option,reset it manually.
Resetting after a fault trip
RemotelyUse the Res electrical remote reset option (not compatible with an SDE/2).
E51
216A
E51
297B
E51
293A
E51
298B
RESET
Masterpact NW08-63 Schneider Electric13
Locking the controlsDisabling circuit-breakerlocal closing and opening
Pushbutton locking using a padlock(shackle diameter 5 to 8 mm), a lead seal or screws.
E51
283A
UnlockingRemove the padlock,lead seal or screws.
E51
300B
E51
301B
E51
302B
E51
303B
Padlock Lead seal
LockingClose the covers. Insert the padlock
shackle, lead sealor screws.
E51
303B
E51
304B
E51
305B
Lift the covers and swingthem down.
The pushbuttonsare no longer locked.
Test
Push OFF
O IPush ON
Push OFF
O IPush ON
E51
337A
Screws
Masterpact NW08-63 Schneider Electric14
Using Masterpact Locking the controlsDisabling local and remote closing
E51
217A
CheckThe controls are inoperative.
UnlockingRemove the padlock.
E51
306A
E51
307A
Pull out the tab. Insert the padlockshackle.
E51
218A
E51
308A
Push
IPush ON
Push
IPush ON
Push OFFO
Pus
Combination of locking systemsTo disable circuit-breaker closing using the pushbuttons or remotely,use as needed:c a padlockc one or two keylocksc a combination of the two locking systems.
Install a padlock (maximum shackle diameter 5 to 8 mm)
LockingOpen the circuit breaker.
Masterpact NW08-63 Schneider Electric15
CheckThe controls are inoperative.
E51
218A
Push
IPush ON
Push OFFO
Pus
UnlockingInsert the key(s).
Four types of keylocks are available.
E51
271A
E51
312A
E51
313A
E51
319A
E51
269A
Turn the key(s). The key(s) cannot beremoved.
RONIS PROFALUX CASTELL
E51
272A
KIRK
Locking the controls with one or two keylocks
LockingOpen the circuit breaker.
E51
217A
E51
310A
E51
311A
Turn the key(s). Remove the key(s).
Push
IPush ON
E51
270A
Masterpact NW08-63 Schneider Electric16
Using the Masterpactdrawout chassis
Identifying the circuit breakerpositions
c "connected" position
E51
222A
The indicator on the front signals the position of the circuit breaker in the chassis.
E51
219A
c "test" position
E51
220A
E51
314A
c "disconnected" position
E51
221A
E51
316A
E51
315A
Test
Test
Test
Test
26 mm
Test
Masterpact NW08-63 Schneider Electric17
Racking
PrerequisitesTo connect and disconnect Masterpact, the crank must be used. The lockingsystems, 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
Removing the rails
The circuit breaker is in "connected" position. The circuit breaker is in"test" position.
E51
223B
The circuit breaker is in "test" position.Remove the crank or continue to"disconnected" position.
The circuit breaker is in"disconnected" position.
Press the release tabsand pull the rails out.
To put the rails back in, press therelease tabs and push the rails in.
E51
226B
E51
224B
Test
Test
1
Test
Test
2
Test
Test
3
Test
56
4
Test
2
1
Test
3
These operations require that all chassis-locking functions be disabled(see page 21).
Caution. The right-hand rail cannot beremoved if the crank has not been removedor if the circuit breaker is not fullydisconnected.
Masterpact NW08-63 Schneider Electric18
Position the circuit breaker on the rails.Check that it rests on all four supports.
E51
227A
Open the circuit breaker(in any case, it opensautomatically duringconnection).
E51
217A
Push the circuit breaker into the chassis, taking care not to push on the control unit.
E51
230B
For complete information on Masterpacthandling and mounting, see the installationmanual(s).
Before mounting the circuit breaker,make sure it matches the chassis.
Racking the circuit breaker from the "disconnected" to "test"position, then to "connected" positionThe device is in"disconnected" position
The device is in "test"position.
12
Test
Test
56
Test Test
TestTest
Test
3 4
Using the Masterpactdrawout chassis
Test
Push
IPush ON
Racking
Inserting Masterpact
The device is in "test" position.Remove the crank or continueto "connected" position.
The device is in"connected" position.
If you cannot insert the circuit breakerin the chassis, check that the mismatchprotection on the chassis correspondsto that on the circuit breaker.
E51
228B
Masterpact NW08-63 Schneider Electric19
Matching a Masterpactcircuit breaker with its chassis
To set up a mismatch-preventioncombination for the circuit breaker andthe chassis, see the mismatch-preventioninstallation manual.
E51
317B
The mismatch protection ensures that a circuit breaker is installed only in a chassiswith compatible characteristics.
The possible combinations are listed below.
A B C DA B C EA B C FA B C GA B D EA B D FA B D GA B E FA B E GA B F GA C D EA C D FA C D GA C E FA C E GA C F GA D E FA D E GA D F GA E F G
B C D EB C D FB C D GB C E FB C E GB D E FB D E GB D F GC D E FC D E GC E F GD E F G
5 6 74 6 74 5 74 5 63 6 73 5 73 5 63 4 73 4 63 4 52 6 72 5 72 5 62 4 72 4 62 4 52 3 72 3 62 3 52 3 4
1 6 71 5 71 4 71 4 61 3 71 3 61 3 51 3 41 2 71 2 61 2 41 2 3
12
34
65
7
AB
CD
FE
G
Masterpact NW08-63 Schneider Electric20
Locking the switchboard door
Disabling door opening
E51
234A
Enabling door opening
Put the Masterpact in"disconnected" position.
E51
236A
The door is unlocked.
The locking device is installed on the left or right-hand side of the chassis:c when the circuit breaker is in "connected" or "test" position, the latch is loweredand the door is lockedc when the circuit breaker is in "disconnected" position, the latch is raisedand the door is unlocked.
E51
231B
E51
232A
E51
235A
E51
233A
Put the Masterpact in"test" or "connected"position.
The door is locked.
Test
Test
Test
Using the Masterpactdrawout chassis
Close the door.
Masterpact NW08-63 Schneider Electric21
Locking the circuit breakerin position
Circuit breaker in "disconnected"position.
E51
237A
Pull out the tab.
E51
239A
E51
238A
Insert the shackle (max. diameter5 to 8 mm) of the padlock(s).
E51
243B
E51
240A
Padlocks and keylocksmay be used together.
Unlocking.
Release the tab.
The crank can be inserted.
The crank cannot be inserted.
E51
241A
E51
242A
Test
Test
Test
OK
Test
Test
Test
Test
Combination of locking systemsTo disable local or remote opening or closing of the circuit breaker, use as needed:c one to three padlocksc one or two keylocksc a combination of the two locking systems.
Disabling connection when the circuit breaker is in"disconnected" position, using one to three padlocks(maximum shackle diameter 5 to 8 mm)
Locking
Remove the padlock(s).
Masterpact NW08-63 Schneider Electric22
Test
OK
Test
Using the Masterpactdrawout chassis
Unlocking
Four types of keylocks are available
E51
247A
The crank can be inserted.Insert the key(s).
E51
246A
E51
243B
Turn the key(s).
E51
270A
RONIS
E51
269A
PROFALUX
E51
271A
CASTELL
E51
272A
KIRK
Test
Disabling connection when the circuit breaker is in"disconnected" position, using one or two keylocks.
Remove the key(s). The crank cannot be inserted.
E51
245A
E51
240A
Test
Locking the circuit breakerin position
Padlocks and keylocks may be used together.
E51
237A
LockingCircuit breaker in "disconnected"position.
E51
244A
Turn the key(s).
Test
Test
Test
Masterpact NW08-63 Schneider Electric23
Set the circuit breaker to "disconnected"position. Remove the circuit breakerfrom the chassis.
E51
237A
Insert the crank.
E51
318B
E51
248A
Turn the catch to the left. The circuit breaker can now be locked in all positions.
E51
251A
For this operation, the circuit breakermust be removed from the chassis.
Locking the circuit breaker when the door is open
When the door is open, the crank cannotbe inserted.
E51
285A
When the door is closed, the crankcan be inserted.
It is possible to modify the padlock and keylock locking function. Instead of lockingonly in "disconnected" position, it is possible to lock the circuit breaker in allpositions.
.
E51
250A
Test
Test
Test
Test
Test
Test
All-positionlocking
Locking in"disconnected" position
rear view
Test
Disabling use of the crank in all positions
Masterpact NW08-63 Schneider Electric24
Using the Masterpactdrawout chassis
Locking the safety shuttersPadlocking inside the chassis
Using the shutter locking blocks
Four locking possibilities
E51
338A
Remove the block(s) fromtheir storage position.
E51
339A
Position the block(s) on the guide(s).
E51
340A
Lock the block(s) using a padlock.
E51
341A
E51
343A
Top and bottom shuttersnot locked.
Top shutter locked,Bottom shutter not locked.
Top shutter not locked,Bottom shutter locked.
Top and bottom shutterslocked.
1
2
3Ø5 ➞ Ø8
Masterpact NW08-63 Schneider Electric25
E60
042A
E51
252A
E51
254A
Pull out the left-hand tab to lockthe top shutter.
E51
255A
This system offers two functions:c padlocking of the top or bottom shuttersc indication of the position of each shutter:v shutter openv shutter closed.
Locking
Pull out the right-hand tabto lock the bottom shutter.
Padlocking or position indication onthe front
Insert a padlock(shackle 5 to 8 mm).
E51
253A
Unlocking
Insert a padlock(shackle 5 to 8 mm).
E51
257A
Remove the padlock. Release the tab(s).
E51
256A
Test
Test
Test Test
TestTest
E51
345A
E51
346A
Test
Test
Pull out both tabsto lock both shutters.
Insert a padlock(shackle 5 to 8 mm).
Test
Test
Test
Test
Test
Top shutter closed.Bottom shutter open.
Top shutter open.Bottom shutter closed.
Top and bottomshutters open.
Top and bottomshutters closed.
Masterpact NW08-63 Schneider Electric26
Identifying the electricalauxiliaries
Identification of the connectionterminalsLayout of terminal blocks
E60
352A
Com UC1 UC2 UC3 UC4 M2C/M6C SDE1E5E3E1
E6E4E2
Z5Z3Z1
M1Z4Z2
M2T3T1
M3T4T2
F2 +VNF1 -
V3V2V1
484/Q3474/Q2471/Q1
184/K2182181/K1
848281
MN/MX2D2/C12
/C13D1/C11
MX1C2C3C1
XFA2A3A1
PF254252251
MCHB2B3B1
OF24244242241
OF23234232231
OF22224222221
OF21214212211
OF14144142141
OF13134132131
OF12124122121
OF11114112111
OF4444241
OF3343231
OF3343231
OF2242221
OF11412
CE3334
332331
CE2324
322321
CE1314
312311
ComUC1
UC2UC3
UC4M2C
/M6C
SDE1
E5E3
E1
E6E4
E2
Z5Z3
Z1
M1Z4
Z2
M2T3
T1
M3T4
T2F2
+VNF1
-
V3V2
V1484
/ Q3474
/ Q2471
/ Q1
184/ K
2182181
/ K1
8482
81
MN/MX2D2/
C12
/
C13
D1/ C1
1
MX1C2
C3C1
XFA2
A3A1
PF254
252251
MCHB2
B3B1
OF24244
242241
OF23234
232231
OF22224
222221
OF21214
212211
OF14144
142141
OF13134
132131
OF12124
122121
OF11114
112111
OF444
4241
3231
OF334 OF2
2422
21
OF114
1211
CT3934
932931
CT2924
922921
CT1914
912911
CD3834
832831
CD2824
822821
CD1814
812811
EF24248246245
EF23238236235
EF22228226225
EF21218216215
EF14148146145
EF13138136135
EF12128126125
EF11118116115
CE3334332331
CE2324322321
CE1314312311
Com UC1 UC2 UC3 UC4 M2C/M6C SDE1E5E3E1
E6E4E2
Z5Z3Z1
M1Z4Z2
M2T3T1
M3T4T2
F2 +VNF1 -
V3V2V1
484/Q3
474/Q2471/Q1
184/K2182
181/K1
848281
CD3834832831
CD2824822821
CD1814812811
MN/MX2D2/C12
/C13D1/C11
MX1C2C3C1
XFA2A3A1
PF254252251
MCHB2B3B1
OF24244242241
OF23234232231
OF22224222221
OF21214212211
OF14144142141
OF13134132131
OF12124122121
OF11114112111
OF4444241
3231
OF334
OF2242221
OF11412
CT3934932931
CT2924922921
CT1914912911
11
11
or
or or or or or or or or
CE6364362361
CE5354352351
CE4344342341
or
or
CE9394392391
CE8384382381
CE7374372371
CD6864862861
CD5854852851
CD4844842841
Masterpact NW08-63 Schneider Electric27
Electrical diagramsFixed and drawout devices
The diagram is shown with circuitsde-energised, all devices open, connectedand charged and relays in normal position.
E60
353A
E46
132A
E60
354A
E60
356A
471
S1
474
484
S2
474
Q1
Q2
Q3
M6C
M2C M6Cor
MX1
C2
C3
C1
BPO
A2
A3
A1
BPF
XF
E46
135A
E46
136A
E46
137A
E60
355A
D2
D1
AT
MN MX2
C12
C13
C11
or
A P H
c c c
c c c
c c c
c c cc c c
c c c
c c
c c
c c
c c
/
/
Power
Com : E1-E6 communication
UC1: Z1-Z5 zone selective interlocking;Z1 = ZSI OUT SOURCEZ2 = ZSI OUT; Z3 = ZSI IN SOURCEZ4 = ZSI IN ST (short time)Z5 = ZSI IN GF (earth fault)M1 = Vigi module input (Micrologic 7)
UC2: T1, T2, T3, T4 = external neutral;M2, M3 = Vigi module input(Micrologic 7)
UC3: F2+, F1– external 24 V DCpower supply
VN external voltage connector
UC4: V1, V2, V3 optional externalvoltage protector
M2C: 2 programmable contacts (internal relay);ext. 24 V DC power supply required
or
M6C: 6 programmable contacts(external relay); 24 V DCpower supply required
Control unit
Control unit Remote operation
SDE2: Fault-trip indication contactorRes: Remote reset
SDE1: Fault-trip indication contact (supplied as standard)
MN: Undervoltage releaseorMX2: Shunt release
MX1: Shunt release (standard or communicating)
XF: Closing release (standard or communicating)
PF: "Ready to close" contact
MCH: Gear motor.
Note:When communicating MX or XF releases are used, the third wire(C3, A3) must be connected even if the communications module isnot installed.
A : Digital ammeterP : A + power meter + programmable protectionH : P + harmonics
/
/
Remote operation
Remote operationSDE2 / Res SDE1 MN / MX2 MX1 XF PF MCH
184 K2 84 D2 C12 C2 A2 254 B2
182 82 C3 A3 252 B3
181 K1 81 D1 C11 C1 A1 251 B1
Control unitCom UC1 UC2 UC3 UC4 M2C / M6C
E5 E6 Z5 M1 M2 M3 F2+ V3 484 Q3
E3 E4 Z3 Z4 T3 T4 VN V2 474 Q2
E1 E2 Z1 Z2 T1 T2 F1 – V1 471 Q1
/
/
/
T4
T3
T2
T1
Z4
Micrologic
Z4
Z3
Z2
Z1
Z3
Z1
Z2
N L3L2L1
Q
Powerupstreamcb
downstreamcb
Z5
VN
V1
V2
V3
M3
M2
M1
F2+
F1 18
1
182
184
SDE2
faul
t
81
82 84
SDE1
K2
Res
K1
faul
t
or
PF
252
254
251
read
y to
clos
e
B1
MCH
B3
B2
char
ged
Masterpact NW08-63 Schneider Electric28
Identifying the electricalauxiliaries
Electrical diagrams
OF 24 or ON/OFF indication contactsEF 24 Combined "connected/closed"
indication contactsOF 23 orEF 23
OF 22 orEF 22
OF 21 orEF 21
OF 14 orEF 14
OF 13 orEF 13
OF12 orEF12
OF11 orEF11
OF4: ON/OFFOF3 indicationOF2 contactsOF1
OF24 OF23 OF22 OF21 OF14 OF13 OF12 OF11
244 234 224 214 144 134 124 114
242 232 222 212 142 132 122 112
241 231 221 211 141 131 121 111
E60
357A
EF24 EF23 EF22 EF21 EF14 EF13 EF12 EF11
248 238 228 218 148 138 128 118
246 236 226 216 146 136 126 116
245 235 225 215 145 135 125 115
E60
358A
E60
361A
E60
371A
E60
362A
Indication contacts
Indication contacts
CD3: DisconnectedCD2 -positionCD1 contacts
or
CE6: ConnectedCE5 positionCE4 contacts
CT3: Test-positionCT2 contactsCT1
or
CE9: ConnectedCE8 positionCE7 contacts
or
CD6: DisconnectedCD5 positionCD4 contacts
or or or or or or or or
CD3 CD2 CD1 CE3 CE2 CE1 CT3 CT2 CT1
834 824 814 334 324 314 934 924 914
832 822 812 332 322 312 932 922 912
831 821 811 331 321 311 931 921 911
CE6 CE5 CE4 CE9 CE8 CE7
364 354 344 394 384 374
362 352 342 392 382 372
361 351 341 391 381 371
or or
CE3: ConnectedCE2 -positionCE1 contacts
Indication contactsOF4 OF3 OF2 OF1
44 34 24 14
42 32 22 12
41 31 21 11
Chassis contacts
Key:
Drawout device only
SDE1, OF1, OF2, OF3, OF4 supplied as standard
Interconnected connections(only one wire per connection point)
XXX
Chassis contacts
Chassis contacts
12 1411
22 2432 3431 21
OF4
42 4441
OF3 OF2 OF1
open closed
OF . .
closed connectedandclosed
OF . .
CE
EF
not connectedorconnectedand open
or
. . 1
. . 2
. . 4
. . 6
. . 8
. . 5 331
332
334
CE3
connected
321
322
324
CE2
311
312
314
CE1
914
912
911
924
922
921
CT3
934
932
931
CT2 CT1
test
331
332
334
CE3
connected
321
322
324
CE2
311
312
314
CE1
Masterpact NW08-63 Schneider Electric29
E60
363A
Operation
The carriage switches indicatethe "connected", "test" and "disconnected"positions.
Circuit breaker
Chassis
E60
364A
The ON/OFF indication contacts signalthe status of the device main contacts.
test position
separation of the auxiliary circuits separation of the main circuits
completely connected
completely disconnected
open
open
open
closed
closed
d> 12.7 mm d> 25.4 mm
open
open
open
closed
closed
closed
closedCT: test positioncarriage switch
CD: disconnected-positioncarriage switch
CE: connected-positioncarriage switch
open
closed
open
closed
closed
completely closed completely open
main contacts
OF : ON/OFF (closed/open)indication changeover contacts
closed
open
open
Masterpact NW08-63 Schneider Electric30
Discovering Masterpact'saccessories
Micrologic control units
E51
329A
E46
108A
For more in-depth information,see the control-unit user manual
Micrologic control units
Long-time rating plugs
M2C and M6C programmable contacts
c standard equipment,one per devicec part numbers:(long-time rating plug andconnection cables notincluded, see below)Micrologic 2.0: 33069Micrologic 5.0: 33070Micrologic 2.0A: 33071Micrologic 5.0A: 33072Micrologic 6.0A: 33073Micrologic 7.0A: 33074Micrologic 5.0P: 47058Micrologic 6.0P: 47059Micrologic 7.0P: 47060Micrologic 5.0H: 47061Micrologic 6.0H: 47062Micrologic 7.0H: 47063c part numbers forconnection cables:47065for drawout device:47805.
c depending on themodel, control units offerin addition:v fault indicationsv measurement ofelectrical parameters(current, voltage, power,etc.)v harmonic analysisv communication.
c M2C: 2 contacts(6 A-240 V)c M6C: 6 contacts(6A-240V).c permissible load oneach of the M6C relayoutputs:v 240 V AC:5 A where p.f = 0.7v 380 V AC:3 A where p.f = 0.7v 24 V DC:8 A where L/R = 0v 48 V DC:1.5 A where L/R = 0v 125 V DC:0.4 A where L/R = 0v 250 V DC:0.15 A where L/R = 0c M6C supply voltage:24 V DC ± 5%c M6C maximumconsumption: 100 mA
c standard equipment,one per control unit.c part numbers:0.4 to 1 x Ir setting:335420.4 to 0.8 x Ir setting:335430.8 to 1 x Ir setting:33544Off (no long-timeprotection): 33545.
c the plugs determinethe setting range for theLong-time protection.
c optional equipment,used with Micrologic Pand H control units.c part numbers(connection cables notincluded, see below):2 M2C contacts:47086 + 470876 M6C contacts: 47066c part numbers forconnection cables:for fixed device: 47074for drawout device:47849.
c contacts can beprogrammed using thekeypad on the controlunit or via the COMoption.c they indicate:v the type of faultv instantaneous ordelayed thresholdoverruns.
Masterpact NW08-63 Schneider Electric31
Indication contacts
ON/OFF indication contacts (OF)c 4 changeover contactsc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 480 V: 10 A (rms)v 600 V: 6 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):250 V: 3 A.
E51
331A
Additional ON/OFF indication contacts (OF)
c optional equipment,two blocks of 4 OFcontacts per devicec part numbers(connection cables notincluded, see below):one block of 4 OFcontacts: 47887c part numbers forconnection cables:for fixed device:47074for drawout device:47849
c changeover contactsc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 480 V: 10 A (rms)v 600 V: 6 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):250 V: 3 A.
Combined "connected/closed" contacts (EF)c optional equipment, 8EF contacts per devicec each contact ismounted in place of theconnector of anadditional OF contactc part number:one EF contact: 48477
c the contact combinesthe "device connected"and the "device closed"information to producethe "circuit closed"information
c changeover contactsc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 10 A (rms)v 480 V: 10 A (rms)v 600 V: 6 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 2.5 Av 130 V: 0.8 Av 250 V: 0.3 A.
"Fault-trip" indication contact (SDE/1)
c standard equipment oncircuit breakers, oneSDE/1 contact per devicec not available for switch-disconnector versions
c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 5 A (rms)v 480 V: 5 A (rms)v 600 V: 3 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 3 Av 125 V: 0.3 Av 250 V: 0.15 A.
c standard equipment:4 OF per device.
c OF contacts indicatethe position of maincontactsc they trip when theminimum isolationdistance between themain contacts is reached
c OF contacts indicatethe position of the maincontactsc they trip when theminimum isolationdistance between themain contacts is reached
c the contact providesa remote indication ofdevice opening due toan electrical fault
Masterpact NW08-63 Schneider Electric32
Discovering Masterpact'saccessories
E51
298B
c optional equipment forcircuit breakers, oneadditional SDE/2 contactper devicec not available for switch-disconnector versionsc not compatible with theRes optionc part numbers(connection cables notincluded, see below):one SDE/2 contact:47915c part numbers forconnection cables:for fixed device: 47074for drawout device:47849
Additional "fault-trip" indication contact (SDE/2)
c the contact remotelyindicates device openingdue to an electrical fault
E51
298B
E51
332A
c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 5 A (rms)v 480 V: 5 A (rms)v 600 V: 3 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 3 Av 125 V: 0.3 Av 250 V: 0.15 A.
c optional equipment,one Res per devicec not compatible with theSDE/2 optionc part numbers(connection cables notincluded, see below):110/130 V AC: 47901220/240 V AC: 47902c part numbers forconnection cables:for fixed device:47074for drawout device:47849
Electrical reset after fault trip (Res)
c the contact remotelyresets the devicefollowing tripping due toan electrical fault
"Springs charged" limit switch contact (CH)
c the contact indicatesthe "charged" status ofthe operating mechanism(springs charged)
"Ready to close" contact (PF)
Indication contacts
c standard equipment,one CH contact perdevice
c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 5 A (rms)v 480 V: 5 A (rms)v 600 V: 3 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 3 Av 125 V: 0.3 Av 250 V: 0.25 A.
c optional equipment,one PF contact perdevicec part numbers(connection cables notincluded, see below):one PF contact: 47080c part numbers forconnection cables:for fixed device:47074for drawout device:47849
c the contact indicatesthat the device may beclosed because all thefollowing are valid:v circuit breaker is openv spring mechanism ischargedv a maintained closingorder is not presentv a maintained openingorder is not present
c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):v 240 V: 10 A (rms)v 380 V: 5 A (rms)c breaking capacityfor DC power(DC12 as per 947-5-1):v 48 V: 3 Av 125 V: 0.3 Av 250 V: 0.15 A.
Masterpact NW08-63 Schneider Electric33
Auxiliaries for remote operation
Gear motor (MCH)c the gear motorautomatically chargesand recharges the springmechanism
c charging time:4 seconds max.c consumption:v 180 VA ACv 180 W DCc inrush current:2 to 3 In for 0.1 secondc operating rate:maximum 3 cyclesper minute.
E51
290A
E51
294A
Opening releases MX/1 and MX/2, closing release XFc optional equipment,1 or 2 MX releases perdevice, 1 XF per devicec the function (MX or XF)is determined by wherethe coil is installedc part numbers(connection cables notincluded, see below):v standard version:12 V AC50/60 Hz / DC: 3365824/30 V AC50/60 Hz / DC: 3365948/60 V AC50/60 Hz / DC: 33660100/130 V AC50/60 Hz / DC: 33661200/250 V AC50/60 Hz / DC: 33662277 V AC50/60 Hz / DC: 33663380/480 V AC50/60 Hz / DC: 33664500/550 V AC50/60 Hz / DC: 33665.v communicating version(with COM option):12 V AC50/60 Hz / DC: 3303224/30 V AC50/60 Hz / DC: 3303348/60 V AC50/60 Hz / DC: 33034100/130 V AC50/60 Hz / DC: 33035200/250 V AC50/60 Hz / DC: 33036240/277 V AC50/60 Hz / DC: 33037380/480 V AC50/60 Hz / DC: 33038
c part numbers forconnection cables:for fixed device:47074for drawout device:47849c the MX releaseinstantaneously opensthe circuit breaker whenenergisedc the XF releaseinstantaneously closesthe circuit breaker whenenergised, if the device is"ready to close"
c device response time:v MX: 50 ms ± 10v XF: 70 ms +10 / -15> 3200 A: 80 ms ± 10c operating threshold:v MX: 0.7 to 1.1 x Unv XF: 0.85 to 1.1 x Unc the supply can bemaintainedc consumption:v pick-up (80 ms):200 VAv hold: 4.5 VA.
c optional equipment,one MCH gear motorper devicec part numbers(connection cables notincluded, see below):100/130 V AC: 47893200/240 V AC: 47894277 V AC: 47895380/415 V AC: 47896400/440 V AC: 47897480 V AC: 4789824/30 V DC: 4788848/60 V DC:47889100/125 V DC: 47890200/250 V DC: 47891c part numbers forconnection cables:for fixed device:47074for drawout device:47849
Masterpact NW08-63 Schneider Electric34
Discovering Masterpact'saccessories
E51
296A
c optional equipment,1 MN with delay unitper device.c delay-unit partnumbers (must beordered in addition to theMN):48/60 V AC50/60 Hz / DC: 33680100/130 V AC50/60 Hz / DC: 33681200/250 V AC50/60 Hz / DC: 33682380/480 V AC50/60 Hz / DC: 33683.
Delay unit for MN releases
c the unit delaysoperation of the MNrelease to eliminatecircuit-breaker nuisancetripping during shortvoltage dipsc the unit is wired inseries with the MN andmust be installed outsidethe circuit breaker
E51
333A
c device response time:0.5, 1, 1.5, 3 secondsc operating threshold:v opening:0.35 to 0.7 x Unv closing: 0.85 x Unc consumption:v pick-up (80 ms):200 VAv hold: 4.5 VA
c optional equipment,1 BPFE per devicec part numbers(connection cables notincluded, see below):48534c part numbers forconnection cables:for fixed device:47074for drawout device:47849
Electrical closing pushbutton (BPFE)
c located on the frontface of the device, thispushbutton carries outelectrical closing of thecircuit breaker via the XFrelease, taking intoaccount all the safetyfunctions that are part ofthe control/monitoringsystem of theinstallation.
3 6
MNUVR
1012
100/130 V
AC/DC
S
0.5 1
3 1.5
Retardateur de MN
Time delay for UVR
4 5 6
1 2 3
1 2 3
Instantaneous undervoltage releases (MN)
c optional equipment,1 MN per devicec not compatible with theMX/2 opening releasec part numbers(connection cables notincluded, see below):24/30 V AC50/60 Hz / DC: 3366848/60 V AC50/60 Hz / DC: 33669100/130 V AC50/60 Hz / DC: 33670200/250 V AC50/60 Hz / DC: 33671380/480 V AC50/60 Hz / DC: 33673500/550 V AC50/60 Hz / DC: 33674c part numbers forconnection cables:for fixed device:47074for drawout device:47849
c the MN releaseinstantaneously opensthe circuit breaker whenits supply voltage drops
c device response time:90 ms ±5c operating threshold:v opening:0.35 to 0.7 x Unv closing: 0.85 x Unc consumption:v pick-up (80 ms):200 VAv hold: 4.5 VA
Auxiliairies for remote operationE
5129
4A
Masterpact NW08-63 Schneider Electric35
Device mechanical accessories
Operation counter (CDM)
c optional equipment,one CDM per devicec part number: 48535
c the operation countersums the number ofoperating cycles.
E46
103A
E46
120A
E46
118A
00399
Escutcheon (CDP)
c optional equipment,one CDP per devicec part numbers:for fixed device:48601for drawout device:48603
c the CDP increases thedegree of protection to IP40 and IK 07 (fixed anddrawout devices).
Transparent cover (CCP)
c optional equipment,one CP per deviceequipped with a CDPc part number: 48604(for fixed and drawoutdevices)
c mounted with a CDP,the CP increases thedegree of protection to IP55 and IK 10 (fixed anddrawout devices).
Masterpact NW08-63 Schneider Electric36
Device mechanical accessoriesDiscovering Masterpact'saccessories
E46
238A
E46
579A
Transparent cover for pushbutton locking using a padlock,lead seal or screws
c optional equipment,one locking cover perdevicec part number: 48536
c the transparent coverblocks access (togetheror separately)to the pushbuttons usedto open and close thedevicec locking requires apadlock, a lead sealor two screws.
Device locking in the OFF position using a padlock
c optional equipment,one locking systemper devicec part number: 48539
c the unit inhibits localor remote closing of thedevicec up to three padlocksmay be used for locking.
Device OFF position locking kit for keylocks
c optional equipement,one locking kit per devicec part numbers (locks notincluded):for Profalux or Roniskeylocks: 48541for Castell keylocks:48543for Kirk keylocks:48542
c the kit inhibits local orremote closing of thedevice.
Keylocks required for the device locking kit
E51
286A
E51
273A
E51
287A
E51
274A
Ronis
Profalux
c one or two keylocks perlocking kitc part numbers:v Ronis:1 keylock: 419402 keylocks: 41950.v Profalux:1 keylock: 428882 keylocks: 42878.
Masterpact NW08-63 Schneider Electric37
Chassis mechanical accessories
c optional equipmentc part numbers(set of shutters for topand bottom):v NW08/NW40:3 poles: 485874 poles: 48589v NW40b/NW633 poles: 485884 poles: 48590
c mounted on thechassis, the safetyshutters automaticallyblock access to thedisconnecting contactcluster when the deviceis in the "disconnected"or "test" positions.
c IP20.
E51
334A
E46
293A
Ronis
Profalux
Shutter locking blocks
c optional equipment:2 blocks for NW08 toNW404 blocks for NW40b toNW63c part number (2 blocks):48591
c the block may bepadlocked. It:v prevents connectionof the devicev locks the shutters in theclosed position.
Shutter position indication and locking on front face
c optional equipmentc part numbers:v NW08/NW040:3 and 4 poles: 48592v NW40b/NW633 poles: 485934 poles: 48594
c this option located onthe front of the chassis:v indicates that theshutters are closedv can be used toindependently orsimultaneously padlockthe two shutters(top and bottom).
Circuit breaker locking in "disconnected" position
Keylocks required with the "disconnected" position lockingsystem
c one or two keylocks perlocking systemc part numbers:v Ronis:1 keylock: 419402 keylocks: 41950v Profalux:1 keylock: 428882 keylocks: 42878.
E46
946A
E46
561A
E51
286A
E51
273A
E51
287A
E51
274A
Top shutter closed Bottom shutter closed
c optional equipment,one locking systemper devicec part numbersfor Profalux or Roniskeylocks: 48564for Castell keylocks:48566for Kirk keylocks: 48565
c mounted on thechassis and accessiblewith the door closed, thissystem locks the circuitbreaker in "disconnected"position using one or twokeylocksc the "disconnected"position locking systemmay be modified to lockthe circuit breaker inall three positions.
Safety shutters
Masterpact NW08-63 Schneider Electric38
Discovering Masterpact’saccessories
Door interlock
c optional equipment,one door interlock perchassisc part number: 47914
c this device inhibitsopening of the cubicledoor when the circuitbreaker is in "connected"or "test" position
c it may be mounted onthe left or right-hand sideof the chassis.
E46
652A
E46
124A
Racking interlock
Mismatch protection
Auxiliary terminal shield (CB)
E46
111A
E51
351A
Chassis mechanical accessories
c optional equipment,one racking interlock perchassisc part number: 48582
c this device preventsinsertion of the rackinghandle when the cubicledoor is open
c it is mounted on theright-hand side of thechassis
c optional equipment,one mismatch protectiondevice per chassisc part number: 33767
c mismatch protectionoffers twenty differentcombinations that theuser may select toensure that only acompatible circuitbreaker is mountedon a given chassis.
c optional equipment,one CB shield perchassisc part numbers:v NW08/NW0403 poles: 485954 poles: 48596v NW40b/NW633 poles: 485974 poles: 48598
c the shield preventsaccess to the terminalblock of the electricalauxiliaries.
Masterpact NW08-63 Schneider Electric39
"Connected", "disconnected" and "test" position carriageswitches (CE, CD, CT)
c optional equipment, oneto nine carriage switchesc standard configuration,0 to 3 CE, 0 to 3 CD,0 to 3 CTc other configurations(by ordering additionalactuators):0 to 9 CE, 0 CD, 0 CT0 to 6 CE, 0 to 3 CD, 0 CT0 to 6 CE, 0 CD, 0 to 3 CTc part numbers(connection cables notincluded, see below):v 1 carriage switch:33170v 1 set of actuators foradditional carriageswitches: 48560c part number forconnection cables(per carriage switch):47849
c the carriage switchesindicate the threepositions:CE: connected positionCD: disconnectedposition (when theminimum isolationdistance between themain contacts and theauxiliary contacts isreached)CT: test position
c changeover contactc rated current: 10 Ac breaking capacity50/60 Hz for AC power(AC12 as per 947-5-1):240 V: 10 A (rms)380 V: 5 A (rms)c breaking capacity forDC power(DC12 as per 947-5-1):250 V: 0.3 A.
E46
095A
Masterpact NW08-63 Schneider Electric40
Inspecting and testingbefore use
Initial testsProcedure
A general check of the circuit breaker takes only a few minutes and avoids any riskof mistakes due to errors or negligence.A general check must be carried out:c prior to initial usec 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 compartments that may beaccessed by the operators must be de-energised.
Electrical testsInsulation and dielectric-withstand tests must be carried out immediately afterdelivery of the switchboard. These tests are precisely defined by internationalstandards and must be directed and carried out by a qualified expert.
Prior to running the tests, it is absolutely necessary to:c disconnect all the electrical auxiliaries of the circuit breaker(MCH, MX, XF, MN, Res electrical remote reset)c 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 Hcontrol units. Removal of the rating plug disconnects the voltage measurement input.
Switchboard inspectionCheck that the circuit breakers are installed in a clean environment, free of anyinstallation scrap or items(tools, electrical wires, broken parts or shreds, metal objects, etc.).
Conformity with the installation diagramCheck that the devices conform with the installation diagram:c breaking capacities indicated on the rating platesc identification of the control unit (type, rating)c presence of any optional functions (remote ON/OFF with motor mechanism,auxiliaries, measurement and indication modules, etc.)c protection settings (long time, short time, instantaneous, earth fault)c identification of the protected circuit marked on the front of each circuit breaker.
Condition of connections and auxiliariesCheck device mounting in the switchboard and the tightness of power connections.Check that all auxiliaries and accessories are correctly installed:c electrical auxiliariesc terminal blocksc connections of auxiliary circuits.
OperationCheck the mechanical operation of the circuit breakers:c opening of contactsc closing of contacts.
Check on the control unitCheck the control unit of each circuit breaker using the respective user manuals.
These operations must be carried out inparticular before using a Masterpact devicefor the first time.
Masterpact NW08-63 Schneider Electric41
Note the faultFaults are signalled locally and remotely by the indicators and auxiliary contactsinstalled on circuit breakers (depending on each configuration). See page 12 in thismanual and the user manual of the control unit for information on the faultindications available with your circuit breaker.
Identify the cause of trippingA circuit must never be reclosed (locally or remotely) before the cause of the faulthas been identified and cleared.
A fault may have a number of causes.c depending on the type of control unit, fault diagnostics are available. See the usermanual for the control unit.c depending on the type of fault and the criticality of the loads, a number ofprecautionary measures must be taken, in particular the insulation and dielectrictests on a part of or the entire installation. These checks and test must be directedand carried out by qualified personnel.
Inspect the circuit breaker following a short-circuitc check the arc chutes (see page 43).c check the contacts (see page 43).c check the tightness of connections (see the device installation manual).c check the disconnecting-contact clusters (see page 44).
Reset the circuit breakerThe circuit breaker can be reset locally or remotely.See page 12 in this manual for information on how the circuit breaker can be reset.
What to do when the circuitbreaker trips
Masterpact NW08-63 Schneider Electric42
Interval Operations Procedureeach year c open and close the device v see pages 10 and 11
locally and remotely,successively usingthe various auxiliariesc test the operatingsequences v see page 8c test the control unit using v see the user manualthe mini test kit of the control unit
every two years or c check the arc chutes v see page 43when the control-unit c check the main contacts v see page 43maintenance indicator c check the tightness of v see the devicereaches 100 connections installation manual
c check the v see page 44disconnecting-contactclusters
Maintaining Masterpactperformance
Recommended maintenanceprogram
Periodic inspections required
Type of Maximum Service life of various partscircuit breaker service life
Arc chutes Main contacts Connecting-rod MX/XF
springs, releases
MCHNW08 to NW16 25000 10000 10000 12500 12500types N1/H1/H2NW08 to NW16 25000 3000 10000 12500 12500type L1NW20 to NW25 20000 440 V: 8000 440 V: 8000 10000 12500types H1/H2 690 V: 6000 690 V: 6000NW20 to NW25 20000 2000 440 V: 8000 10000 12500type H3 690 V: 6000NW20 20000 3000 10000 10000 12500type L1NW32 to NW40 20000 440 V: 5000 440 V: 5000 10000 12500types H1/H2 690 V: 2500 690 V: 2500NW32 to NW40 20000 1250 440 V: 5000 10000 12500type H3 690 V: 2500NW40b to NW63 10000 1500 3000 5000 12500types H1/H2
Recommended program for devices usedunder normal operating conditions:Ambient temperature: -5° C / +60°CNormal atmosphere
Part Intervening entity Description orprocedure
arc chutes c user v see page 43.main contacts c inspection: user v see page 43.
c replacement:Schneider After SalesSupport
MCH gear motor c user v see page 9.mechanical c userinterlocksconnecting-rod c Schneider After Salessprings SupportMX/MN/XF c user v see pages 10, 11.
Parts requiring replacement, depending on the number ofoperating cyclesThe following parts must be replaced periodically to lengthen the service life of thedevice (maximum number of operating cycles).
Part replacement must be programmed on the basis of the data below, listing theservice life of the various parts in numbers of O/C cycles at the rated current.
Number of O/C cycles at the rated current
Masterpact NW08-63 Schneider Electric43
Arc chutesc remove the fixing screws:v types N1, H1 and H2 ≤ NW 40: two screwsv types H1 and H2 ≥ NW 40b, type H3: three screwsv type L1: four screws.
E51
275A
If the control unit has a maintenanceindicator, there is no need to systematicallycheck the contacts.
If the contacts are worn, have theconcerned poles replaced by the Schneiderservice centre.
Maintenance operations
E51
280A
E51
281A
E51
279A
Wear of main contactsc remove the arc chutesc close the device and check the contacts
Contacts OK Contacts worn
Contacts OK Contacts worn
E51
276B
E51
277B
E51
282B
E51
278B
Before undertaking any maintenance work,de-energise the installation and fit locks orwarnings in compliance with all applicablesafety standards.
Type H1, H2 (≥ 4000b A), L1
Type N1, H1, H2, H3 (≤ 4000 A)
c check the arc chutes:v chamber not crackedv separators not corroded.
If necessary, replace the arc chutes.
Masterpact NW08-63 Schneider Electric44
Disconnecting-contact clustersc grease the contacts using the grease listed on page 45,supplied by Schneider Electricc check the contacts as follows:v open the circuit breakerv de-energise the busbarsv disconnect the circuit breakerv remove the circuit breakerv check the contact fingers (no sign of copper should be visible)Replace any worn clusters.c the position of the clusters must correspond to the table below.
layout n° 1 layout n° 2 layout n° 3 layout n° 4 layout n° 5
Maintaining Masterpactperformance
Maintenance operationsE
6036
0C
Rating NW08 NW10 NW16 NW20 NW25 NW32 NW40 NW40b NW63Type NW12 NW50N1 layout n° 1
2 clusters/pole
H1 layout n° 2 layout n° 3 layout n° 4 layout n° 5 layout n° 4 4 clusters/pole 8 clusters/pole 12 clusters/pole 14 clusters/pole 24 clusters/pole
H2
H3
L1 layout n° 3 layout n° 58 clusters/pole 14 clusters/pole
corrosion layout 2' layout 3' layout 5 layout 4protection 4 clusters "GOLD"/pole 8 clusters "GOLD"/pole 14 clusters "GOLD"/pole 24 clusters "GOLD"/pole
E51
324B
E51
325B
E51
326B
E51
327B
E51
328C
layout 2' layout 3'
E71
924A
E71
925A
Masterpact NW08-63 Schneider Electric45
Ordering replacement parts
Electrical accessoriesThe electrical accessories that may require replacement are the following:c MCH gear motorc MX opening release(s)c XF closing releasec MN undervoltage release.
See pages 33 and 34 in the "Auxiliaries for remote operation" section for theircharacteristics and part numbers.
E51
335A
E46
109A
Arc chutes
c part numbers(1 arc chute):v NW type N1NW08 to NW40 types H1and H2: 47935v NW40b to NW63 typesH1 and H2NW type H3: 47936v NW type L1: 47937.
c NW08 to NW40:one chute per poleNW40b to NW63:two chutes per pole.
Disconnecting-contact clusters for standard NW
c part number (1 cluster):33166
c number per circuitbreaker, see tablepage 44.
Grease for disconnecting-contact clusters
c part number (1 can) for standard NW: 33160.
Front
c part number (1 front for3- or 4-pole devices):47939.
c 1 per device.
E46
237A
Crank
c part number (1 crank):47944.
c 1 per device.
E51
336A
c 1 per device.
Charging handle
E46
126A
c part number (1 handle):47940.
c part number (1 can) for NW with corrosion protection: 48617.
Masterpact NW08-63 Schneider Electric46
Maintaining Masterpactperformance
Troubleshooting and solutions
Problem Probable causes Solutions
opening of device not indicated by the pushbutton c the supply voltage for the MN v check the voltage.indicator signalling a fault trip undervoltage release is too low Implement corrective action
or equal to zero.c the MN release is faulty. v replace the faulty devicec load-shedding order sent v check the overall load on theby another device. distribution system.
If necessary, modify the settingsof devices in the installation.
c transient presence of the voltage v determine the origin of the order.across the terminals ofthe MX shunt release.
instantaneous opening after each attempt c closing on a short-circuit. v clear the fault. Check the conditionto close the circuit breaker (indicated by the of the Masterpact device before(pushbutton indicator signalling a fault trip) putting it back into service
c transient overcurrent when closing. v modify the distribution systemor the control-unit settingsCheck the condition of the Masterpactdevice before putting it backinto service
c thermal memory. v see the user manualof the control unit.
circuit breaker cannot be opened remotely c insufficient supply voltage for the MX v check the supply voltage.can be opened locally shunt release(s) U < 0.7 Un. Apply a voltage between
0.7 and 1.1 Un.c faulty electrical circuit for the MX v remove the front faceshunt release(s). v check the MX shunt release(s)c drop in voltage across the terminals v completely cut the supply voltageof the MN release(s) to less than of the release to be checked.0.35 Un. The circuit breaker should open.
- If it does not open replace the tested release- If it opens, resupply the testedrelease with power and reclosethe circuit breaker.Slowly reduce the voltageand check that the release opensthe circuit breaker between0.35 and 0.7 Un. If there is a problem,replace the tested release.
circuit breaker cannot be opened locally c faulty operating mechanism v contact a Schneider service centre. or welded main contacts.
nuisance tripping of the circuit breaker c reset pushbutton indicator not v push in completely the reset(with pushbutton indicator signalling a fault trip) pushed-in completely. pushbutton indicator.
Masterpact NW08-63 Schneider Electric47
Problem Probable causes Solutionscircuit breaker cannot be closed remotely or locally c closing on a short-circuit. v clear the fault. Check the condition
of the Masterpact device beforeputting it back into service.
c pushbutton indicator signalling a fault v reset the pushbutton indicator.trip has not been reset(only if reset is not automatic).c circuit breaker not completely connected. v terminate racking in (connection)
of the circuit breaker.c anti-pumping function. v cut the supply of power to the XF
closing release, then resupply it.c circuit breaker not charged v check the supply of power to the (spring mechanism). MCH gear motor.
Check the supply circuits.Check that manual charging ispossible.If necessary, replace the MCH gearmotor.
c the XF closing release continuously v cut the supply of power to the XFsupplied with power. closing release, then send the closing
order again via the XF, but only if thecircuit breaker is "ready to close".
c MX shunt release(s) supplied with power. v determine why the MX release(s)are supplied with power.Cut the supply of power to theconcerned MX release(s),then attempt to close via the XF.
c MN release not supplied with v supply the MN with voltage greaterpower or faulty. than 0.85 Un, then attempt to close
via the XF.If the circuit breaker does not close,remove the front face and check thatthe pick-up voltage of the MN is correctIf not, replace the auxiliary.
c circuit breaker locked in the v disable the locking function."open" position.c circuit breaker interlocked. v check the situation,
it may be normal.circuit breaker cannot be closed remotely, c XF closing release not supplied v check the power supply (voltagecan be closed locally. with enough power or faulty. should be between 0.85 and 1.1 Un)circuit breaker cannot be recharged electrically. c insufficient supply voltage v check the supply voltage.
for the MCH gear motor. Check the supply circuit for the MCHgear motor.Attempt to recharge the mechanismmanually.If there is a problem, the mechanismis faulty. Contact a Schneider servicecentre.If the mechanism can be chargedmanually, the MCH gear motor isfaulty and must be replaced.
the crank cannot be inserted to connect c system is padlocked, a "connected" v remove the padlock and/or disableor disconnect the circuit breaker. or "disconnected" position locking function the locking function(s).
is enabled or the racking interlock is enabled.c chassis rails not completely pushed in. v push the rails in completely.
circuit breaker or right-hand rail of chassis c the crank has not been removed v remove the crank and store it.(circuit breaker removed) cannot be removed. from the circuit breaker.
c the circuit breaker is notcompletely disconnected. v completely disconnect the circuit
breaker.c system is padlocked, a "connected" v remove the padlock and/or disableor "disconnected" position locking the locking function(s).function is enabled or the rackinginterlock is enabled.
circuit breaker cannot be connected (racked in). c the circuit breaker and chassis v check the match between the two.do not match. If OK, check the mismatch protection
installed on the circuit breakerand chassis.
c the disconnecting-contact clusters v check the position of theare incorrectly positioned. disconnecting-contact clusters.c the safety shutters are locked(locked inside chassis or on front face). v remove the lock(s).
Masterpact NW08-63 Schneider Electric48
Checking Masterpactoperating conditions
E51
261B
Test
E51
262B
Test
E51
260B
Test
Ambient temperatureMasterpact NW devices can operate under the following temperature conditions:c the electrical and mechanical characteristics are stipulated for an ambienttemperature of -5° C to +70° Cc circuit-breaker closing is guaranteed down to -35° Cc Masterpact NW (without the control unit) can be stored in an ambienttemperature of -40° C to +85° Cc the control unit can be stored in an ambient temperature of -25° C to +85° C.
Extreme atmospheric conditionsMasterpact NW devices have successfully passed the tests defined by the followingstandards for extreme atmospheric conditions:
c IEC 68-2-1: dry cold at -55° Cc IEC 68-2-2: dry heat at +85° Cc IEC 68-2-30: damp heat (temperature +55° C, relative humidity 95%)c IEC 68-2-52 level 2: salt mist.
Masterpact NW devices can operate in the industrial environments defined bystandard IEC 947 (pollution degree up to 4).
It is nonetheless advised to check that the devices are installed in suitably cooledswitchboards without excessive dust.
Masterpact NW devices with corrosion protection have successfully passed thetests defined by the following standards for extreme atmospheric conditions:
c IEC 68-2-42: atmospheres containing sulphur dioxide (SO2)c IEC 68-2-43: atmospheres containing hydrogen sulphide (H2S).
VibrationsMasterpact NW devices resist electromagnetic or mechanical vibrations.
Tests are carried out in compliance with standard IEC 68-2-6 for the levels requiredby merchant-marine inspection organisations (Veritas, Lloyd's, etc.):c 2 to 13.2 Hz: amplitude ±1 mmc 13.2 to 100 Hz: constant acceleration 0.7 g.
Excessive vibration may cause tripping, breaks in connections or damage tomechanical parts.
Masterpact NW08-63 Schneider Electric49
E51
263B
2000
m
Test
AltitudeMasterpact NW devices are designed for operation at altitudes under 2000 metres.
At altitudes higher than 2000 metres, the modifications in the ambient air (electricalresistance, cooling capacity) lower the following characteristics.
altitude (m) 2000 3000 4000 5000dielectric resistance 3500 3150 2500 2100voltage (V)average insulation 1000 900 700 600level (V)maximum utilisation 690 590 520 460voltage (V)average thermal 1 x In 0.99 x In 0.96 x In 0.94 x Incurrent (A) at 40 °C
E51
264B
Test
Electromagnetic disturbances
Masterpact NW devices are protected against:v overvoltages caused by devices that generate electromagnetic disturbancesv overvoltages caused by an atmospheric disturbances or by a distribution-systemoutage (e.g. failure of a lighting system)v devices emitting radio waves (radios, walkie-talkies, radar, etc.)v electrostatic discharges produced by users.
Masterpact NW devices have successfully passed the electromagnetic-compatibility tests (EMC) defined by the following international standards:c IEC 947-2, appendix Fc IEC 947-2, appendix B (trip units with earth-leakage function).
The above tests guarantee that:c no nuisance tripping occursc tripping times are respected.
Schneider Electric Industries SA
Designed by: HeadLinesPrinted by:
As standards, specifications and designs develop from time, always ask for confirmation of theinformation given in this publication.
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http://www.schneiderelectric.com
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