Low Voltage Products User manual Masterpact NW08-63 IEC potx

Low Voltage Products
User manual
Masterpact NW08-63 IEC

Masterpact NW08-63 IEC Schneider Electric
1
Discovering Masterpact 2
Using Masterpact 8
Understanding the controls and indications 8
Charging the circuit breaker 9
Closing the circuit breaker 10
Opening the circuit breaker 11
Resetting after a fault trip 12
Locking the controls 13
Using the Masterpact drawout chassis 16
Identifying the circuit breaker positions 16
Racking 17
Matching a Masterpact circuit breaker with its chassis 19
Locking the switchboard door 20
Locking the circuit breaker in position 21
Locking the safety shutters 24
Identifying the electrical auxiliaries 26
Identification of the connection terminals 26
Electrical diagrams 27
Operation 29
Discovering Masterpact's accessories 30
Micrologic control units 30
Indication contacts 31
Auxiliaries for remote operation 33
Device mechanical accessories 35
Chassis mechanical accessories 37

Inspecting and testing before use 40
Initial test 40
What to do when the circuit breaker trips 41
Maintaining Masterpact performance 42
Recommended maintenance program 42
Maintenance operations 43
Ordering replacement parts 45
Troubleshooting and solutions 46
Checking Masterpact operating conditions 48
User manual for circuit breakers
Masterpact NW08-63 IEC
Masterpact NW08-63 IEC Schneider Electric
2
Discovering Masterpact
The Masterpact NW range of circuit breakers and switch-disconnectors
offer current ratings from 800 A to 6300 A.
Five different performance levels are available:
b N1: standard with total discrimination
b H1: high performance with total discrimination
b H2: a compromise between current limiting and discrimination
b H3: high breaking capacity and discrimination, without current limiting
b L1: high level of current limiting, with some discrimination.
Rating plate
E60350A
E51288A
E60036A
Icu kA at 415 V
Ics = 100% Icu
150
100

65
42
L1
H3
H2
H1
N1
160012001000800 2000 2500 3200 4000 5000 6300
E46004A
Masterpact NW08-63 IEC Schneider Electric
3
Masterpact NW08-63 IEC Schneider Electric
4
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 installed
using fixing brackets
Drawout version
Fixed version
E51205C
E51289C
Masterpact NW08-63 IEC Schneider Electric
5
Chassis
E60037A
Masterpact NW08-63 IEC Schneider Electric
6
Circuit breaker / switch-disconnector
E60038A
MCH gear motor for

electrical charging of
the operating mechanism
Operating-mechanism
charging handle
PF "ready to close"
contact
SDE/2 "fault-trip"
indication contact
or Res electrical
remote reset
Terminal block for
the control unit and
the SDE contact(s)
MX/2 opening release or
MN 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 for
the 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/OFF
indication contacts
Discovering Masterpact
Masterpact NW08-63 IEC Schneider Electric
7
Front
E60039A
RESET
Indicator for position
of the main contacts
"Springs charged"
and "Ready to close"
indicator
Locking by padlock
or lead-seal cover
for pushbuttons
Rating plate
Trip indication button
used to reset before closing
Masterpact NW08-63 IEC Schneider Electric
8
Using Masterpact
Understanding the controls
and indications
Circuit breaker open

and discharged
Circuit breaker closed
and discharged
Circuit breaker open,
charged and not "ready to
close"
Circuit breaker closed,
charged and not "ready to
close"
Circuit breaker open, charged
and "ready to close"
E51320B
Push OFF
O
I
Push O
N
Push OFF
O
I
Push ON
Push OFF
O
I
Push O
N
Push OFF
O
I
Push O

N
E51207A
E51210A
E51206A
E51211
E51209A
Push OFF
O
I
Push ON
T
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s
t
RESET
Masterpact NW08-63 IEC Schneider Electric
9
The charge status is indicated 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 the optional MCH gear motor.
Manual charging:
Pull the handle down
seven times until you
hear a "clack".
Automatic charging:
If the MCH gear motor is
installed, the spring is
automatically recharged
after each closing.

T
e
s
t
E60370A
E51213A
E51290A
Charging the circuit breaker
Push OFF
O
I
Push ON
or
Masterpact NW08-63 IEC Schneider Electric
10
Using Masterpact
Closing the circuit breaker
Locally (electrical)
Closing conditions
Closing (i.e. turning the circuit ON) is possible only if the circuit breaker is
"ready to close".
The prerequisites are the following:
b device open (OFF)
b springs charged
b no opening order present.
If the circuit breaker is not "ready to close" when the order is given, stop the order
and 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 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 then closes the
circuit breaker. This function can be disabled by wiring the closing release in series
with the PF "ready to close" contact.
Press the electrical closing
pushbutton. By adding an
XF closing release, the
circuit breaker can be closed
remotely.
BPFE XF
When connected to a remote control panel, the XF
closing release (0.85 to 1.1 Un) can be used to close
the circuit breaker remotely.
XF
Push OFF
O
Pus
E51291AE51292AE51216A
E51214AE51215A
E51293A
E51294A
E51294A
Device not "ready to close"
Device "ready to close"
Masterpact NW08-63 IEC Schneider Electric

11
Opening the circuit breaker
Locally
Press the OFF pushbutton.
Remotely
Use one of the following solutions:
b one or two MX opening releases (MX1 and MX2, 0.7 to 1.1 Un)
b one MN undervoltage release (0.35 to 0.7 Un)
b 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 open
the circuit breaker remotely.
E51216AE51293A
E51294
E51296A
E51217A
3
6
MN
UVR
1012
100/130 V
AC/DC
S
0.5
1
3
1.5
Retardateur de MN
Time delay for UVR
4 56123

1 23
Push
I
Push O
N
MX1, MX2, MN Delay unit
Masterpact NW08-63 IEC Schneider Electric
12
Using Masterpact
The circuit breaker signals a fault by:
b a mechanical indicator on the front panel
b 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.
Resetting after a fault trip
Remotely
Use the Res electrical remote reset option (not compatible with an SDE/2).
E51216A
E51297B
E51293A
E51298B
RESET
Masterpact NW08-63 IEC Schneider Electric
13
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.

E51283A
Unlocking
Remove the padlock,
lead seal or screws.
E51300B
E51301B
E51302B
E51303B
Padlock Lead seal
Locking
Close the covers.
Insert the padlock
shackle, lead seal
or screws.
E51303B
E51304B
E51305B
Lift the covers and swing
them down.
The pushbuttons
are no longer locked.
T
e
s
t
Push OFF
O
I
Push ON
Push OFF

O
I
Push ON
E51337A
Screws
Masterpact NW08-63 IEC Schneider Electric
14
Using Masterpact
Locking the controls
Disabling local and remote closing
E51217A
Check
The controls are inoperative.
Unlocking
Remove the padlock.
E51306A
E51307A
Pull out the tab. Insert the padlock
shackle.
E51218AE51308A
Push
I
Push ON
Push
I
Push ON
PushOFF
O
Pus
Combination of locking systems

To disable circuit-breaker closing using the pushbuttons or remotely,
use as needed:
b a padlock
b one or two keylocks
b a combination of the two locking systems.
Install a padlock (maximum shackle diameter 5 to 8 mm)
Locking
Open the circuit breaker.
Masterpact NW08-63 IEC Schneider Electric
15
Check
The controls are inoperative.
E51218A
Push
I
PushON
Push OFF
O
Pus
Unlocking
Insert the key(s).
Four types of keylocks are available.
E51271A
E51312A
E51313A
E51319A
E51269A
Turn the key(s). The key(s) cannot be
removed.
RONIS

PROFALUX CASTELL
E51272A
KIRK
Locking the controls with one or two keylocks
Locking
Open the circuit breaker.
E51217A
E51310A
E51311A
Turn the key(s).
Remove the key(s).
Push
I
Push O
N
E51270A
Masterpact NW08-63 IEC Schneider Electric
16
Using the Masterpact
drawout chassis
Identifying the circuit breaker
positions
b "connected" position
E51222A
The indicator on the front signals the position of the circuit breaker in the chassis.
E51219A
b "test" position
E51220A
E51314A
b "disconnected" position

E51221A
E51316A E51315A
T
e
s
t
Test
Test
Test
26 mm
Test
Masterpact NW08-63 IEC Schneider Electric
17
Racking
Prerequisites
To connect and disconnect Masterpact, the crank must be used. The locking
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
Removing the rails
The circuit breaker is in "connected" position.
The circuit breaker is in
"test" position.
DB110368
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 tabs
and pull the rails out.

To put the rails back in, press the
release tabs and push the rails in.
E51226B
E51224B
T
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2
1
T
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t
3
These operations require that all chassis-
locking functions be disabled
(see page 21).
Caution. The right-hand rail cannot be
removed if the crank has not been removed
or if the circuit breaker is not fully
disconnected.
Masterpact NW08-63 IEC Schneider Electric
18
Position the circuit breaker on the rails.
Check that it rests on all four supports.
E51227A
Open the circuit breaker
(in any case, it opens
automatically during

connection).
E51217A
Push the circuit breaker into the chassis, taking care not to push on the control unit.
DB110369
For complete information on Masterpact
handling and mounting, see the installation
manual(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" position
The device is in "disconnected" position
The device is in "test" position.
Using the Masterpact
drawout chassis
T
e
s
t
Push
I
Push ON
Racking
Inserting Masterpact
The device is in "test" position.
Remove the crank or continue
to "connected" position.
The device is in "connected" position.
If you cannot insert the circuit breaker
in the chassis, check that the mismatch

protection on the chassis corresponds
to that on the circuit breaker.


E51228B
Masterpact NW08-63 IEC Schneider Electric
19
Matching a Masterpact
circuit breaker with its chassis
To set up a mismatch-prevention
combination for the circuit breaker and
the chassis, see the mismatch-prevention
installation manual.
E51317B
The mismatch protection ensures that a circuit breaker is installed only in a chassis
with compatible characteristics.
The possible combinations are listed below.
A B C D
A B C E
A B C F
A B C G
A B D E
A B D F
A B D G
A B E F
A B E G
A B F G
A C D E
A C D F
A C D G

A C E F
A C E G
A C F G
A D E F
A D E G
A D F G
A E F G
B C D E
B C D F
B C D G
B C E F
B C E G
B D E F
B D E G
B D F G
C D E F
C D E G
C E F G
D E F G
5 6 7
4 6 7
4 5 7
4 5 6
3 6 7
3 5 7
3 5 6
3 4 7
3 4 6
3 4 5
2 6 7

2 5 7
2 5 6
2 4 7
2 4 6
2 4 5
2 3 7
2 3 6
2 3 5
2 3 4
1 6 7
1 5 7
1 4 7
1 4 6
1 3 7
1 3 6
1 3 5
1 3 4
1 2 7
1 2 6
1 2 4
1 2 3
1
2
3
4
6
5
7
A
B

C
D
F
E
G
Masterpact NW08-63 IEC Schneider Electric
20
Locking the switchboard door
Disabling door opening
E51234A
Enabling door opening
Put the Masterpact in
"disconnected" position.
E51236A
The door is unlocked.
The locking device is installed on the left or right-hand side of the chassis:
b when the circuit breaker is in "connected" or "test" position, the latch is lowered
and the door is locked
b when the circuit breaker is in "disconnected" position, the latch is raised
and the door is unlocked.
E51231BE51232A
E51235A
E51233A
Put the Masterpact in
"test" or "connected"
position.
The door is locked.
T
e
s

t
T
e
s
t
T
e
s
t
Using the Masterpact
drawout chassis
Close the door.
Masterpact NW08-63 IEC Schneider Electric
21
Locking the circuit breaker
in position
Circuit breaker in "disconnected"
position.
E51237A
Pull out the tab.
E51239A
E51238A
Insert the shackle (max. diameter
5 to 8 mm) of the padlock(s).
E51243B
E51240A
Padlocks and keylocks
may be used together.
Unlocking.
Release the tab.

The crank can be inserted.
The crank cannot be inserted.
E51241A
E51242A
T
e
s
t
Test
T
e
s
t
T
e
st
T
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s
t
Test
Combination of locking systems
To disable local or remote opening or closing of the circuit breaker, use as needed:
b one to three padlocks
b one or two keylocks
b 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 IEC Schneider Electric
22
T
e
s
t
Using the Masterpact
drawout chassis
Unlocking
Four types of keylocks are available
E51247A
The crank can be inserted.
Insert the key(s).
E51246A
E51243B
Turn the key(s).
E51270A
RONIS
E51269A
PROFALUX
E51271A
CASTELL
E51272A
KIRK
T
e
s
t
Disabling connection when the circuit breaker is in

"disconnected" position, using one or two keylocks.
Remove the key(s). The crank cannot be inserted.
E51245A
E51240A
T
e
st
Locking the circuit breaker
in position
Padlocks and keylocks may be used together.
E51237A
Locking
Circuit breaker in "disconnected"
position.
E51244A
Turn the key(s).
Test
Test
T
e
s
t
Masterpact NW08-63 IEC Schneider Electric
23
Set the circuit breaker to "disconnected"
position. Remove the circuit breaker
from the chassis.
E51237A
Insert the crank.
DB105858

E51248A
Turn the catch to the right. The circuit breaker can now be locked in all positions.
E51251A
For this operation, the circuit breaker
must be removed from the chassis.
Locking the circuit breaker when the door is open
When the door is open, the crank cannot
be inserted.
E51285A
When the door is closed, the crank
can be inserted.
It is possible to modify the padlock and keylock locking function. Instead of locking
only in "disconnected" position, it is possible to lock the circuit breaker in all
positions.
.
E51250A
Test
Test
T
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t
T
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t
T
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t

T
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t
Disabling use of the crank in all positions